Настройки

Укажите год
-

Небесная энциклопедия

Космические корабли и станции, автоматические КА и методы их проектирования, бортовые комплексы управления, системы и средства жизнеобеспечения, особенности технологии производства ракетно-космических систем

Подробнее
-

Мониторинг СМИ

Мониторинг СМИ и социальных сетей. Сканирование интернета, новостных сайтов, специализированных контентных площадок на базе мессенджеров. Гибкие настройки фильтров и первоначальных источников.

Подробнее

Форма поиска

Поддерживает ввод нескольких поисковых фраз (по одной на строку). При поиске обеспечивает поддержку морфологии русского и английского языка
Ведите корректный номера.
Ведите корректный номера.
Ведите корректный номера.
Ведите корректный номера.
Укажите год
Укажите год

Применить Всего найдено 186. Отображено 164.
15-02-2020 дата публикации

METHOD FOR PREPARING CELLULOSE FIBRE

Номер: AT0000521561A2
Принадлежит:

Die vorliegende Offenlegung offenbart ein Verfahren zur Herstellung von Zellulosefasern. Das Verfahren umfasst die folgenden Schritte: 1) Mischung von Zellstoff-Pulpe mit einer wässrigen NMMO-Lösung einer Gewichtskonzentration von 60 % - 85 %, vorzugsweise 70 % - 76 %, um eine gleichförmige Mischung zu erhalten; 2) Unterwerfen der erhaltenen gleichförmigen Mischung einer Entwässerung zur Quellung und Auflösung, und Entlüftung, um eine Zellulose-Spinn-Stammlösung zur erhalten; 3) Einbringen der Zellulose-Spinn-Stammlösung in eine Spinnmaschine nach Filtrierung und Wärmeaustausch, und Einbringen in ein Koagulationssystem nach dem Extrudieren durch ein Spinnpaket und Luftkühlung, und hierauf Koagulieren in einem NMMO-Koagulationsbad einer Gewichtskonzentration von 50 % - 72 %, um naszente Fasern zu erhalten; und 4) Unterwerfen der naszenten Fasern einer Waschung, um ein Faser-Filamentbündel zu erhalten und hierauf Durchführung einer Behandlung in einem nachfolgenden Bereich, um Zellulosefasern ...

Подробнее
22-10-2019 дата публикации

Systems and methods for voltage control and current control of power conversion systems with multiple operation modes

Номер: US0010454378B2

System and method for regulating a power conversion system. A system controller for regulating a power conversion system includes an operation-mode-selection component and a driving component. The operation-mode-selection component is configured to receive a first signal related to an output load of the power conversion system and a second signal related to an input signal received by the power conversion system and output a mode-selection signal based on at least information associated with the first signal and the second signal. The driving component is configured to receive the mode-selection signal and generate a drive signal based on at least information associated with the mode-selection signal, the driving signal corresponding to a switching frequency.

Подробнее
17-11-2016 дата публикации

Systems and Methods for Temperature Control in Light-Emitting-Diode Lighting Systems

Номер: US20160338165A1
Принадлежит:

Systems and methods are provided for regulating one or more currents. An example system controller includes: a thermal detector configured to detect a temperature associated with the system controller and generate a thermal detection signal based at least in part on the detected temperature; and a modulation-and-driver component configured to receive the thermal detection signal and generate a drive signal based at least in part on the thermal detection signal to close or open a switch to affect a drive current associated with one or more light emitting diodes. The modulation-and-driver component is further configured to, in response to the detected temperature increasing from a first temperature threshold but remaining smaller than a second temperature threshold, generate the drive signal to keep the drive current at a first current magnitude, the second temperature threshold being higher than the first temperature threshold. 1. A system controller for regulating one or more currents , the system controller comprising:a thermal detector configured to detect a temperature associated with the system controller and generate a thermal detection signal based at least in part on the detected temperature; anda modulation-and-driver component configured to receive the thermal detection signal and generate a drive signal based at least in part on the thermal detection signal to close or open a switch to affect a drive current associated with one or more light emitting diodes; in response to the detected temperature increasing from a first temperature threshold but remaining smaller than a second temperature threshold, generate the drive signal to keep the drive current at a first current magnitude, the second temperature threshold being higher than the first temperature threshold;', 'in response to the detected temperature increasing to become equal to or larger than the second temperature threshold, change the drive signal to reduce the drive current from the first current ...

Подробнее
13-06-2024 дата публикации

A SADDLE WINDOW AIR CONDITIONER WITH AN ADJUSTABLE BRIDGE

Номер: US20240191885A1
Автор: Qiang Luo, Jian Cui
Принадлежит:

A saddle window air conditioner includes an interior casing and an exterior casing. A bridge extends between the interior casing and the exterior casing. A first sleeve of the bridge is slidably received within a second sleeve of the bridge such that a length of the bridge between the interior casing and the exterior casing is adjustable by sliding the first sleeve within the second sleeve. The saddle window air conditioner also includes a gear assembly mounted within the bridge. The first sleeve is slidable within the second sleeve by rotating the gear assembly.

Подробнее
05-04-2016 дата публикации

Systems and methods for current matching of LED strings

Номер: US0009307597B2

System and method are provided for regulating a string current flowing through a string of one or more light emitting diodes. A system controller includes a first controller terminal, a second controller terminal and a third controller terminal. The first controller terminal is coupled to a base terminal of a bipolar junction transistor, the bipolar junction transistor further including an emitter terminal and a collector terminal, the collector terminal being connected to the string of one or more light emitting diodes. The second controller terminal is coupled to the emitter terminal of the bipolar junction transistor and to a first resistor terminal of a resistor associated with a resistance. The third controller terminal is coupled to a second resistor terminal of the resistor. In addition, the system controller is configured to receive a reference voltage, receive an emitter voltage, and output a base current.

Подробнее
01-03-2016 дата публикации

Systems and methods for driving transistors with high threshold voltages

Номер: US0009276571B2

System and method are provided for driving a transistor. The system includes a floating-voltage generator, a first driving circuit, and a second driving circuit. The floating-voltage generator is configured to receive a first bias voltage and generate a floating voltage, the floating-voltage generator being further configured to change the floating voltage if the first bias voltage changes and to maintain the floating voltage to be lower than the first bias voltage by a first predetermined value in magnitude. The first driving circuit is configured to receive an input signal, the first bias voltage and the floating voltage. The second driving circuit is configured to receive the input signal, a second bias voltage and a third bias voltage, the first driving circuit and the second driving circuit being configured to generate an output signal to drive a transistor.

Подробнее
24-07-2007 дата публикации

Bidirectional horizontal scan circuit with sub-sampling and horizontal adding functions

Номер: US0007249299B1
Автор: Qiang Luo, LUO QIANG

A horizontal scan circuit comprises a column selector and a plurality of block selectors. A column selector is used to address particular columns of pixels within blocks. A block selector is used to select a particular block and to select the particular columns of the selected block that are addressed by the column selector. Each block selector typically comprises a single D-type flip-flop that is associated with a block of pixel columns. The block selectors are arranged such that the blocks can be scanned from left-to-right or right-to-left. The column selector comprises an asynchronous counter and a decoder that are further arranged to provide sub-sampling and horizontal adding functions. The use of block and column selectors reduces the number of relatively large D-type flip-flops (which conserves die area) and reduces the parasitic capacitance associated with the otherwise required relatively large number of inputs of the column selection circuit drivers.

Подробнее
19-04-2018 дата публикации

SYSTEMS AND METHODS FOR VOLTAGE CONTROL AND CURRENT CONTROL OF POWER CONVERSION SYSTEMS WITH MULTIPLE OPERATION MODES

Номер: US20180109195A1
Принадлежит:

System and method for regulating a power conversion system. A system controller for regulating a power conversion system includes an operation-mode-selection component and a driving component. The operation-mode-selection component is configured to receive a first signal related to an output load of the power conversion system and a second signal related to an input signal received by the power conversion system and output a mode-selection signal based on at least information associated with the first signal and the second signal. The driving component is configured to receive the mode-selection signal and generate a drive signal based on at least information associated with the mode-selection signal, the driving signal corresponding to a switching frequency. 121.-. (canceled)22. A system controller for regulating a power conversion system , the system controller comprising:a driver component configured to output a drive signal in order to affect an output signal of the power conversion system, the drive signal being associated with a switching frequency corresponding to a switching period, the switching period including an on-time period and a demagnetization period;a first sample-and-hold component including a first capacitor and configured to sample and hold a current sensing signal associated with a primary current flowing through a primary winding of the power conversions system at at least a first time during the on-time period and generate a first held sampled signal based on at least information associated with the current sensing signal;a second sample-and-hold component including a second capacitor and configured to sample and hold the current sensing signal at at least a second time during the on-time period and generate a second held sampled signal based on at least information associated with the current sensing signal, the second time being later than the first time;a first switch including a first switch terminal and a second switch terminal, the ...

Подробнее
10-01-2019 дата публикации

SYSTEMS AND METHODS FOR VOLTAGE CONTROL AND CURRENT CONTROL OF POWER CONVERSION SYSTEMS WITH MULTIPLE OPERATION MODES

Номер: US20190013738A1
Принадлежит: On Bright Electronics Shanghai Co Ltd

System and method for regulating a power conversion system. A system controller for regulating a power conversion system includes an operation-mode-selection component and a driving component. The operation-mode-selection component is configured to receive a first signal related to an output load of the power conversion system and a second signal related to an input signal received by the power conversion system and output a mode-selection signal based on at least information associated with the first signal and the second signal. The driving component is configured to receive the mode-selection signal and generate a drive signal based on at least information associated with the mode-selection signal, the driving signal corresponding to a switching frequency.

Подробнее
11-02-2014 дата публикации

Systems and methods for driving transistors with high threshold voltages

Номер: US0008648630B2

System and method are provided for driving a transistor. The system includes a floating-voltage generator, a first driving circuit, and a second driving circuit. The floating-voltage generator is configured to receive a first bias voltage and generate a floating voltage, the floating-voltage generator being further configured to change the floating voltage if the first bias voltage changes and to maintain the floating voltage to be lower than the first bias voltage by a first predetermined value in magnitude. The first driving circuit is configured to receive an input signal, the first bias voltage and the floating voltage. The second driving circuit is configured to receive the input signal, a second bias voltage and a third bias voltage, the first driving circuit and the second driving circuit being configured to generate an output signal to drive a transistor.

Подробнее
16-02-2023 дата публикации

SYSTEMS AND METHODS FOR GENERATING CURRENTS WITH VARIABLE SLOPES FOR DC-TO-DC VOLTAGE CONVERTERS

Номер: US20230049903A1
Автор: Fagang Wang, Qiang Luo
Принадлежит:

System and method for generating one or more compensation currents for a DC-to-DC voltage converter. For example, a system for generating one or more compensation currents for a DC-to-DC voltage converter includes: a voltage generator configured to receive a reference voltage and generate a first ramp voltage and a second ramp voltage based at least in part on the reference voltage; and a current generator configured to receive the first ramp voltage, the second ramp voltage, an input voltage, and an output voltage; wherein the current generator is further configured to: if the output voltage is smaller than the input voltage, generate a first compensation current based at least in part on the first ramp voltage; and if the output voltage is larger than the input voltage, generate a second compensation current based at least in part on the second ramp voltage.

Подробнее
26-05-2016 дата публикации

SYSTEMS AND METHODS FOR ENHANCING DYNAMIC RESPONSE OF POWER CONVERSION SYSTEMS

Номер: US20160149487A1
Принадлежит:

System and method for regulating a power conversion system. For example, a system controller for regulating a power conversion system includes an amplifier, a variable-resistance component, a capacitor, and a modulation and drive component. The amplifier is configured to receive a reference signal and a feedback signal associated with an output signal of the power conversion system, the amplifier including an amplifier terminal. The variable-resistance component is associated with a first variable resistance value, the variable-resistance component including a first component terminal and a second component terminal, the first component terminal being coupled with the amplifier terminal. The capacitor includes a first capacitor terminal and a second capacitor terminal, the first capacitor terminal being coupled with the second component terminal. The modulation and drive component includes a first terminal and a second terminal, the first terminal being coupled with the amplifier terminal. 1. A system controller for regulating a power conversion system , the system controller comprising:a first amplifier configured to receive a reference signal and a feedback signal associated with an output signal of the power conversion system, the first amplifier including an amplifier terminal;a variable-resistance component associated with a first variable resistance value, the variable-resistance component including a first component terminal and a second component terminal, the first component terminal being coupled with the amplifier terminal;a first capacitor including a first capacitor terminal and a second capacitor terminal, the first capacitor terminal being coupled with the second component terminal; anda modulation and drive component including a first terminal and a second terminal, the first terminal being coupled with the amplifier terminal, the modulation and drive component being configured to output a drive signal at the second terminal to a switch in order to ...

Подробнее
16-04-2019 дата публикации

Systems and methods for temperature control in light-emitting-diode lighting systems

Номер: US0010264644B2

Systems and methods are provided for regulating one or more currents. An example system controller includes: a thermal detector configured to detect a temperature associated with the system controller and generate a thermal detection signal based at least in part on the detected temperature; and a modulation-and-driver component configured to receive the thermal detection signal and generate a drive signal based at least in part on the thermal detection signal to close or open a switch to affect a drive current associated with one or more light emitting diodes. The modulation-and-driver component is further configured to, in response to the detected temperature increasing from a first temperature threshold but remaining smaller than a second temperature threshold, generate the drive signal to keep the drive current at a first current magnitude, the second temperature threshold being higher than the first temperature threshold.

Подробнее
26-01-2016 дата публикации

Systems and methods for enhancing dynamic response of power conversion systems

Номер: US0009244472B2

System and method for regulating a power conversion system. For example, a system controller for regulating a power conversion system includes an amplifier, a variable-resistance component, a capacitor, and a modulation and drive component. The amplifier is configured to receive a reference signal and a feedback signal associated with an output signal of the power conversion system, the amplifier including an amplifier terminal. The variable-resistance component is associated with a first variable resistance value, the variable-resistance component including a first component terminal and a second component terminal, the first component terminal being coupled with the amplifier terminal. The capacitor includes a first capacitor terminal and a second capacitor terminal, the first capacitor terminal being coupled with the second component terminal. The modulation and drive component includes a first terminal and a second terminal, the first terminal being coupled with the amplifier terminal ...

Подробнее
21-02-2023 дата публикации

Systems and methods for regulating power conversion systems with output detection and synchronized rectifying mechanisms

Номер: US0011588405B2

System and method for regulating a power conversion system. A system controller for regulating a power conversion system includes a first controller terminal and a second controller terminal. Additionally, the system controller is configured to receive an input signal at the first controller terminal, and generate a drive signal at the second controller terminal based at least in part on the input signal to turn on or off a transistor in order to affect a current associated with a secondary winding of the power conversion system. Moreover, the system controller is further configured to determine whether the input signal is larger than a first threshold at a first time, in response to the input signal being determined to be larger than the first threshold at the first time, determine whether the input signal is smaller than a second threshold at a second time.

Подробнее
27-05-2014 дата публикации

Systems and methods of level shifting for voltage drivers

Номер: US0008736345B2

System and method for controlling one or more switches. The system includes a first converting circuit, a second converting circuit, and a signal processing component. The first converting circuit is configured to convert a first current and generate a first converted voltage signal based on at least information associated with the first current. The second converting circuit is configured to convert a second current and generate a second converted voltage signal based on at least information associated with the second current. The signal processing component is configured to receive the first converted voltage signal and the second converted voltage signal and generate an output signal based on at least information associated with the first converted voltage signal and the second converted voltage signal.

Подробнее
11-08-2020 дата публикации

Systems and methods for voltage control and current control of power conversion systems with multiple operation modes

Номер: US0010742122B2

System and method for regulating a power conversion system. A system controller for regulating a power conversion system includes an operation-mode-selection component and a driving component. The operation-mode-selection component is configured to receive a first signal related to an output load of the power conversion system and a second signal related to an input signal received by the power conversion system and output a mode-selection signal based on at least information associated with the first signal and the second signal. The driving component is configured to receive the mode-selection signal and generate a drive signal based on at least information associated with the mode-selection signal, the driving signal corresponding to a switching frequency.

Подробнее
09-06-2020 дата публикации

Two-terminal integrated circuits with time-varying voltage-current characteristics including phased-locked power supplies

Номер: US0010681786B2

A two-terminal IC chip and method thereof. For example, a two-terminal IC chip includes a first chip terminal and a second chip terminal. A first terminal voltage is a voltage of the first chip terminal, a second terminal voltage is a voltage of the second chip terminal, and a chip voltage is equal to a difference between the first terminal voltage and the second terminal voltage. The chip is configured to allow a chip current to flow into the chip at the first chip terminal and out of the chip at the second chip terminal, or to flow into the chip at the second chip terminal and out of the chip at the first chip terminal. The chip current is larger than or equal to zero in magnitude. The chip is further configured to change a relationship between the chip voltage and the chip current with respect to time. The chip is an integrated circuit, and the chip does not include any additional chip terminal other than the first chip terminal and the second chip terminal.

Подробнее
11-12-2014 дата публикации

SYSTEMS AND METHODS FOR TWO-LEVEL PROTECTION OF POWER CONVERSION SYSTEMS

Номер: US20140362621A1

Systems and methods are provided for protecting a power conversion system. A system controller includes a two-level protection component and a driving component. The two-level protection component is configured to detect an output power of a power conversion system and generate a protection signal based on at least information associated with the output power. The driving component is configured to generate a drive signal based on at least information associated with the protection signal and output the drive signal to a switch associated with a primary current flowing through a primary winding of the power conversion system. The driving component is further configured to generate the drive signal corresponding to a first switching frequency to generate the output power equal to a first power threshold and generate the drive signal corresponding to a second switching frequency to generate the output power equal to a second power threshold. 1. A system controller for protecting a power conversion system , the system controller comprising:a two-level protection component configured to detect an output power of a power conversion system and generate a protection signal based on at least information associated with the output power of the power conversion system; anda driving component configured to generate a drive signal based on at least information associated with the protection signal and output the drive signal to a switch associated with a primary current flowing through a primary winding of the power conversion system; generate the drive signal corresponding to a first switching frequency to generate the output power equal to a first power threshold; and', 'generate the drive signal corresponding to a second switching frequency to generate the output power equal to a second power threshold, the second power threshold being larger than the first power threshold, the second switching frequency being larger than the first switching frequency;, 'wherein the driving ...

Подробнее
02-02-2017 дата публикации

SYSTEMS AND METHODS FOR TWO-LEVEL PROTECTION OF POWER CONVERSION SYSTEMS

Номер: US20170033699A1
Принадлежит:

Systems and methods are provided for protecting a power conversion system. A system controller includes a two-level protection component and a driving component. The two-level protection component is configured to detect an output power of a power conversion system and generate a protection signal based on at least information associated with the output power. The driving component is configured to generate a drive signal based on at least information associated with the protection signal and output the drive signal to a switch associated with a primary current flowing through a primary winding of the power conversion system. The driving component is further configured to generate the drive signal corresponding to a first switching frequency to generate the output power equal to a first power threshold and generate the drive signal corresponding to a second switching frequency to generate the output power equal to a second power threshold. 122.-. (canceled)23. A system controller for regulating a power conversion system , the system controller comprising:a modulation component configured to receive a feedback signal associated with an output signal of a power conversion system and generate a modulation signal based on at least information associated with the feedback signal, the modulation signal being associated with a modulation frequency; anda driving component configured to generate a drive signal based on at least information associated with the modulation signal and output the drive signal to a switch associated with a primary current flowing through a primary winding of the power conversion system, the drive signal being associated with the modulation frequency; increase the modulation frequency from a first frequency magnitude to a second frequency magnitude in response to the feedback signal increasing from a first feedback magnitude to a second feedback magnitude;', 'keep the modulation frequency at the second frequency magnitude if the feedback signal is ...

Подробнее
02-03-2010 дата публикации

LED lamp

Номер: US0007670029B1

An LED safety lamp includes a cover, a heat-conductive plate thermally attached to and mounted on the cover, a heat sink thermally attached to and mounted on the heat-conductive plate, a plurality of LED modules attached to the heat sink, a transparent housing enclosing the heat sink and the LED modules and hermetically secured to the cover. The cover includes a hollow tube, a flameproof connector and a flexible component received in the hollow tube. The flexile component is depressed by the connector to expand thereby to seal the hollow tube and fix the electrical wires extending through the flexible component in position, thereby providing an excellent airproof effectiveness to the LED lamp.

Подробнее
10-08-2021 дата публикации

Natural gas hydrate-bearing sediment intergranular micro-force testing device and testing method thereof

Номер: US0011085862B2

The present invention discloses a natural gas hydrate-bearing sediment intergranular micro-force testing device and a testing method thereof. The testing device comprises: a high pressure reactor, a natural gas cylinder, a natural gas buffer tank, a condensate circulation device, a water source and a gas-liquid saturated tank, wherein a gas inlet of the natural gas buffer tank communicates with the natural gas cylinder through a first pipeline, a gas outlet of the natural gas buffer tank communicates with a gas inlet of the high pressure reactor through a second pipeline, a water inlet of the high pressure reactor communicates with a water outlet of the gas-liquid saturated tank through a third pipeline, a water inlet of the gas-liquid saturated tank communicates with the water source through a fourth pipeline, the gas outlet of the natural gas buffer tank communicates with the fourth pipeline through a fifth pipeline.

Подробнее
05-11-2015 дата публикации

SYSTEMS AND METHODS FOR SOURCE SWITCHING AND VOLTAGE GENERATION

Номер: US20150318789A1
Принадлежит:

System and method for regulating a power conversion system. An example system controller for regulating a power conversion system includes a first controller terminal associated with a first controller voltage and coupled to a first transistor terminal of a first transistor, the first transistor further including a second transistor terminal and a third transistor terminal, the second transistor terminal being coupled to a primary winding of a power conversion system, a second controller terminal associated with a second controller voltage and coupled to the third transistor terminal, and a third controller terminal associated with a third controller voltage. The first controller voltage is equal to a sum of the third controller voltage and a first voltage difference. The second controller voltage is equal to a sum of the third controller voltage and a second voltage difference. 133.-. (canceled)34. A method for regulating a power conversion system including a system controller with a controller terminal , the method comprising:generating a controller voltage associated with the controller terminal coupled to a first transistor terminal of a first transistor, the first transistor further including a second transistor terminal and a third transistor terminal, the third transistor terminal being coupled to a primary winding of the power conversion system;generating a current associated with the controller voltage;biasing a fourth transistor terminal of a second transistor to a reference voltage based on at least information associated with the current, the second transistor further including a fifth transistor terminal and a sixth transistor terminal, the sixth transistor terminal being coupled to a resistor; andgenerating a supply voltage at the fifth transistor terminal based on at least information associated with the reference voltage.35. A system controller for regulating a power conversion system , the system controller comprising:a controller terminal ...

Подробнее
22-01-2015 дата публикации

SYSTEMS AND METHODS FOR HIGH PRECISION AND/OR LOW LOSS REGULATION OF OUTPUT CURRENTS OF POWER CONVERSION SYSTEMS

Номер: US20150023069A1

Systems and methods are provided for signal processing. An example error amplifier for processing a reference signal and an input signal associated with a current of a power conversion system includes a first operational amplifier, a second operational amplifier, a first transistor, a second transistor, a current mirror component, a switch, a first resistor and a second resistor. The first operational amplifier includes a first input terminal, a second input terminal and a first output terminal, the first input terminal being configured to receive a reference signal. The first transistor includes a first transistor terminal, a second transistor terminal and a third transistor terminal, the first transistor terminal being configured to receive a first amplified signal from the first output terminal, the third transistor terminal being coupled to the second input terminal. 1. An error amplifier for processing a reference signal and an input signal associated with a current of a power conversion system , the error amplifier comprising:a first operational amplifier including a first input terminal, a second input terminal and a first output terminal, the first input terminal being configured to receive a reference signal;a first transistor including a first transistor terminal, a second transistor terminal and a third transistor terminal, the first transistor terminal being configured to receive a first amplified signal from the first output terminal, the third transistor terminal being coupled to the second input terminal;a second operational amplifier including a third input terminal, a fourth input terminal and a second output terminal, the third input terminal being configured to receive an input signal associated with a current flowing through a primary winding of a power conversion system;a second transistor including a fourth transistor terminal, a fifth transistor terminal and a sixth transistor terminal, the fourth transistor terminal being configured to ...

Подробнее
28-05-2019 дата публикации

Systems and methods for two-level protection of power conversion systems

Номер: US0010305386B2

Systems and methods are provided for protecting a power conversion system. A system controller includes a two-level protection component and a driving component. The two-level protection component is configured to detect an output power of a power conversion system and generate a protection signal based on at least information associated with the output power. The driving component is configured to generate a drive signal based on at least information associated with the protection signal and output the drive signal to a switch associated with a primary current flowing through a primary winding of the power conversion system. The driving component is further configured to generate the drive signal corresponding to a first switching frequency to generate the output power equal to a first power threshold and generate the drive signal corresponding to a second switching frequency to generate the output power equal to a second power threshold.

Подробнее
30-06-2015 дата публикации

Systems and methods for source switching and voltage generation

Номер: US0009071151B2

System and method for regulating a power conversion system. An example system controller for regulating a power conversion system includes a first controller terminal associated with a first controller voltage and coupled to a first transistor terminal of a first transistor, the first transistor further including a second transistor terminal and a third transistor terminal, the second transistor terminal being coupled to a primary winding of a power conversion system, a second controller terminal associated with a second controller voltage and coupled to the third transistor terminal, and a third controller terminal associated with a third controller voltage. The first controller voltage is equal to a sum of the third controller voltage and a first voltage difference. The second controller voltage is equal to a sum of the third controller voltage and a second voltage difference.

Подробнее
05-01-2017 дата публикации

SYSTEMS AND METHODS FOR REGULATING POWER CONVERSION SYSTEMS WITH OUTPUT DETECTION AND SYNCHRONIZED RECTIFYING MECHANISMS

Номер: US20170005578A1
Принадлежит:

System and method for regulating a power conversion system. An example system controller includes: a first controller terminal and a second controller terminal. The system controller is configured to: receive an input signal at the first controller terminal and generate a first drive signal at the second controller terminal based on at least information associated with the input signal to turn on or off a transistor to affect a current associated with a secondary winding of the power conversion system. The system controller is further configured to: in response to the input signal changing from a first value larger than a first threshold to a second value smaller than the first threshold, change the first drive signal from a first logic level to a second logic level to turn on the transistor. 118.-. (canceled)19. A system for regulating a power conversion system , the system comprising: receive an input signal associated with an output voltage related to a secondary winding of a power conversion system; and', 'generate a first drive signal based on at least information associated with the input signal to turn on or off a transistor to affect a first current associated with the secondary winding of the power conversion system; and, 'a first system controller configured to receive a feedback signal associated with the first drive signal;', 'generate a second drive signal based on at least information associated with the feedback signal; and', 'output the second drive signal to a switch to affect a second current flowing through a primary winding of the power conversion system;, 'a second system controller configured to the first system controller is further configured to, in response to the input signal indicating that the output voltage changes from a first value larger than a first threshold to a second value smaller than the first threshold, generate one or more pulses of the first drive signal to turn on and off the transistor; and', process the feedback signal to ...

Подробнее
19-09-2023 дата публикации

Systems and methods for regulating power conversion systems with output detection and synchronized rectifying mechanisms

Номер: US0011764684B2

System controller and method for regulating a power converter. For example, the system controller includes a first controller terminal and a second controller terminal. The system controller is configured to receive an input signal at the first controller terminal and generate a drive signal at the second controller terminal based at least in part on the input signal to turn on or off a transistor in order to affect a current associated with a secondary winding of the power converter. Additionally, the system controller is further configured to determine whether the input signal remains larger than a first threshold for a first time period that is equal to or longer than a first predetermined duration.

Подробнее
26-05-2020 дата публикации

Unmanned aerial vehicle

Номер: US000D885301S1
Принадлежит: GUANGZHOU WALKERA TECHNOLOGY CO., LTD

Подробнее
24-10-2019 дата публикации

SYSTEMS AND METHODS FOR SOURCE SWITCHING AND VOLTAGE GENERATION

Номер: US20190326820A1
Принадлежит:

System and method for regulating a power conversion system. An example system controller for regulating a power conversion system includes a first controller terminal associated with a first controller voltage and coupled to a first transistor terminal of a first transistor, the first transistor further including a second transistor terminal and a third transistor terminal, the second transistor terminal being coupled to a primary winding of a power conversion system, a second controller terminal associated with a second controller voltage and coupled to the third transistor terminal, and a third controller terminal associated with a third controller voltage. The first controller voltage is equal to a sum of the third controller voltage and a first voltage difference. The second controller voltage is equal to a sum of the third controller voltage and a second voltage difference. 137.-. (canceled)38. A system controller for regulating a power conversion system , the system controller comprising:a first controller terminal associated with a first controller voltage and coupled to a first transistor terminal of a first transistor, the first transistor further including a second transistor terminal and a third transistor terminal, the second transistor terminal being coupled to a primary winding of a power conversion system;a second controller terminal associated with a second controller voltage and coupled to the third transistor terminal;a third controller terminal associated with a third controller voltage;a second transistor including a fourth transistor terminal, a fifth transistor terminal and a sixth transistor terminal, the fifth transistor terminal being coupled to the second controller terminal; anda first damper including a first damper terminal and a second damper terminal, the first damper terminal being coupled to the first controller terminal.39. The system controller of wherein the second damper terminal is coupled to the third controller terminal.40. ...

Подробнее
25-10-2012 дата публикации

SYSTEMS AND METHODS FOR DIMMING CONTROL WITH CAPACITIVE LOADS

Номер: US20120268031A1

System and method for dimming control. The system includes a system controller including a first controller terminal and a second controller terminal, a transistor including a first transistor terminal, a second transistor terminal and a third transistor terminal, and a resistor including a first resistor terminal and a second resistor terminal. The system controller is configured to generate a first signal at the first controller terminal based on an input signal and to generate a second signal at the second controller terminal based on the first signal. The first transistor terminal is coupled to the second controller terminal. The first resistor terminal is coupled to the second transistor terminal. The second resistor terminal is coupled to the third transistor terminal. The transistor is configured to receive the second signal at the first transistor terminal and to change between two conditions in response to the second signal. 1. A system for dimming control , the system comprising:a system controller including a first controller terminal and a second controller terminal;a transistor including a first transistor terminal, a second transistor terminal and a third transistor terminal; anda resistor including a first resistor terminal and a second resistor terminal; the system controller is configured to generate a first signal at the first controller terminal based on at least information associated with an input signal and to generate a second signal at the second controller terminal based on at least information associated with the first signal;', 'the first transistor terminal is coupled, directly or indirectly, to the second controller terminal;', 'the second transistor terminal is biased at a first voltage;', 'the first resistor terminal is coupled to the second transistor terminal;', 'the second resistor terminal is coupled to the third transistor terminal; and', 'the transistor is configured to receive the second signal at the first transistor terminal ...

Подробнее
09-11-2017 дата публикации

SYSTEMS AND METHODS FOR SOURCE SWITCHING AND VOLTAGE GENERATION

Номер: US20170324340A1
Принадлежит:

System and method for regulating a power conversion system. An example system controller for regulating a power conversion system includes a first controller terminal associated with a first controller voltage and coupled to a first transistor terminal of a first transistor, the first transistor further including a second transistor terminal and a third transistor terminal, the second transistor terminal being coupled to a primary winding of a power conversion system, a second controller terminal associated with a second controller voltage and coupled to the third transistor terminal, and a third controller terminal associated with a third controller voltage. The first controller voltage is equal to a sum of the third controller voltage and a first voltage difference. The second controller voltage is equal to a sum of the third controller voltage and a second voltage difference. 1. A system controller for regulating a power conversion system , the system controller comprising:a first controller terminal associated with a first controller voltage and coupled to a first transistor terminal of a first transistor, the first transistor further including a second transistor terminal and a third transistor terminal, the second transistor terminal being coupled to a primary winding of a power conversion system;a second controller terminal associated with a second controller voltage and coupled to the third transistor terminal; anda third controller terminal associated with a third controller voltage; the first controller voltage is equal to a sum of the third controller voltage and a first voltage difference; and', 'the second controller voltage is equal to a sum of the third controller voltage and a second voltage difference;, 'wherein keep the first voltage difference constant; and', 'change the second voltage difference to turn on or off the first transistor and to affect a primary current flowing through the primary winding., 'wherein the system controller is configured ...

Подробнее
19-04-2018 дата публикации

SYSTEMS AND METHODS FOR VOLTAGE CONTROL AND CURRENT CONTROL OF POWER CONVERSION SYSTEMS WITH MULTIPLE OPERATION MODES

Номер: US20180109196A1
Принадлежит:

System and method for regulating a power conversion system. A system controller for regulating a power conversion system includes an operation-mode-selection component and a driving component. The operation-mode-selection component is configured to receive a first signal related to an output load of the power conversion system and a second signal related to an input signal received by the power conversion system and output a mode-selection signal based on at least information associated with the first signal and the second signal. The driving component is configured to receive the mode-selection signal and generate a drive signal based on at least information associated with the mode-selection signal, the driving signal corresponding to a switching frequency. 1. A system controller for regulating a power conversion system , the system controller comprising:an operation-mode-selection component configured to receive a first signal related to an output load of the power conversion system and a second signal related to an input signal received by the power conversion system and output a mode-selection signal based on at least information associated with the first signal and the second signal; anda driving component configured to receive the mode-selection signal and generate a drive signal based on at least information associated with the mode-selection signal, the driving signal corresponding to a switching frequency; if the output load is determined to be larger than a first load threshold in magnitude and the input signal is determined to be larger than an input threshold, generate the mode-selection signal corresponding to a quasi-resonant mode if the switching frequency is determined to be smaller than a first frequency threshold and larger than a second frequency threshold; and', 'if the output load is determined to be larger than the first load threshold in magnitude and the input signal is determined to be smaller than the input threshold, generate the mode- ...

Подробнее
30-05-2006 дата публикации

Method for reducing dark current for an array of active pixel sensor cells

Номер: US0007053354B1

An array of active pixel sensor cells is operated to substantially reduce the gate induced drain leakage (GIDL) current component of the dark current. In addition, the array is tested to determine the number of cells in the array that are bad, and discards the array of active pixel sensor cells when the number of bad cells exceeds a predefined limit.

Подробнее
04-07-2013 дата публикации

SYSTEMS AND METHODS OF SIGNAL SYNCHRONIZATION FOR DRIVING LIGHT EMITTING DIODES

Номер: US20130169325A1

System and method for signal synchronization. The system includes a first selection component, a first signal generator, a second signal generator and a first gate drive component. The first selection component is configured to receive a first mode signal and generate a first selection signal based on at least information associated with the first mode signal. The first signal generator is configured to, if the first selection signal satisfies one or more first conditions, receive a first input signal and generate at least a first clock signal based on at least information associated with the first input signal. Furthermore, the first gate drive component is configured to, if the first selection signal satisfies the one or more first conditions, receive at least the first clock signal and output a first drive signal to a first switch. 1. A system for signal synchronization , the system comprising:a first selection component configured to receive a first mode signal and generate a first selection signal based on at least information associated with the first mode signal, the first selection signal indicating a first operation mode;a first signal generator configured to, if the first selection signal satisfies one or more first conditions, receive a first input signal and generate at least a first clock signal based on at least information associated with the first input signal, the first input signal including a first input rising edge and being associated with a first input frequency, the first clock signal including a first clock rising edge and being associated with a first clock frequency; anda second signal generator configured to, if the first selection signal satisfies one or more second conditions, generate at least a second clock signal, the second clock signal including a second clock rising edge and being associated with a second clock frequency; if the first selection signal satisfies the one or more first conditions, receive at least the first clock ...

Подробнее
29-01-2019 дата публикации

Systems and methods for regulating power conversion systems with output detection and synchronized rectifying mechanisms

Номер: US0010193451B2

System and method for regulating a power conversion system. An example system controller includes: a first controller terminal and a second controller terminal. The system controller is configured to: receive an input signal at the first controller terminal and generate a first drive signal at the second controller terminal based on at least information associated with the input signal to turn on or off a transistor to affect a current associated with a secondary winding of the power conversion system. The system controller is further configured to: in response to the input signal changing from a first value larger than a first threshold to a second value smaller than the first threshold, change the first drive signal from a first logic level to a second logic level to turn on the transistor.

Подробнее
23-04-2015 дата публикации

AQUEOUS CATHODE SLURRY

Номер: US20150107093A1
Принадлежит:

A method of making a positive electrode includes forming a slurry of particles using an electrode formulation, a diluent, and oxalic acid, coating the slurry on a collector and drying the coating on the collector to form the positive electrode. The electrode formulation includes an electrode active material, a conductive carbon source, an organic polymeric binder, and a water soluble polymer. The diluent consists essentially of water. 2. The method of claim 1 , wherein forming the slurry of particles from the electrode formulation claim 1 , the diluent claim 1 , and the oxalic acid comprises:mixing the diluent with the water soluble polymer to form a viscosity enhancer solution;mixing only the oxalic acid with the viscosity enhancer solution to produce a pH-adjusted viscosity enhancer solution; andmixing the pH-adjusted viscosity enhancer solution with the electrode active material, the conductive carbon source, and the organic polymeric binder.3. The method of claim 2 , wherein mixing the pH-adjusted viscosity enhancer solution with the electrode active material claim 2 , the conductive carbon source claim 2 , and the organic polymeric binder comprises first mixing the pH-adjusted viscosity enhancer solution with the electrode active material and the conductive carbon source claim 2 , and then mixing the resulting mixture with a solution of the organic polymeric binder in water.4. The method of claim 1 , wherein the oxalic acid is present in an amount of between 0.1% by weight and 0.5% by weight claim 1 , based on the weight of the slurry.5. The method of claim 1 , wherein drying the coating consists of drying at a temperature of between approximately 35° C. and approximately 65° C. to maintain positive electrode performance.6. The method of claim 5 , wherein the oxalic acid is configured to release carbon dioxide as a by-product during the drying claim 5 , and wherein the drying last less than approximately 3 minutes.7. The method of claim 1 , wherein the ...

Подробнее
10-10-2017 дата публикации

Systems and methods with prediction mechanisms for synchronization rectifier controllers

Номер: US0009787198B1

System controller and method for regulating a power converter. For example, the system controller includes a first controller terminal and a second controller terminal. The system controller is configured to receive, at the first controller terminal, an input signal, generate a drive signal based at least in part on the input signal, and output, at the second controller terminal, the drive signal to a switch to affect a current associated with a secondary winding of the power converter. The system controller is further configured to detect a first duration of a demagnetization period associated with the secondary winding based at least in part on the input signal, determine a second duration of a time period for the drive signal based at least in part on the first duration, and keep the drive signal at a first logic level during the entire time period.

Подробнее
04-09-2018 дата публикации

Systems and methods for voltage control and current control of power conversion systems with multiple operation modes

Номер: US0010069424B2

System and method for regulating a power conversion system. A system controller for regulating a power conversion system includes an operation-mode-selection component and a driving component. The operation-mode-selection component is configured to receive a first signal related to an output load of the power conversion system and a second signal related to an input signal received by the power conversion system and output a mode-selection signal based on at least information associated with the first signal and the second signal. The driving component is configured to receive the mode-selection signal and generate a drive signal based on at least information associated with the mode-selection signal, the driving signal corresponding to a switching frequency.

Подробнее
31-07-2014 дата публикации

SYSTEMS AND METHODS OF LEVEL SHIFTING FOR VOLTAGE DRIVERS

Номер: US20140210541A1

System and method for controlling one or more switches. The system includes a first converting circuit, a second converting circuit, and a signal processing component. The first converting circuit is configured to convert a first current and generate a first converted voltage signal based on at least information associated with the first current. The second converting circuit is configured to convert a second current and generate a second converted voltage signal based on at least information associated with the second current. The signal processing component is configured to receive the first converted voltage signal and the second converted voltage signal and generate an output signal based on at least information associated with the first converted voltage signal and the second converted voltage signal. 1. A system for controlling one or more switches , the system comprising:a first converting circuit configured to convert a first current and generate a first converted voltage signal based on at least information associated with the first current;a second converting circuit configured to convert a second current and generate a second converted voltage signal based on at least information associated with the second current; anda signal processing component configured to receive the first converted voltage signal and the second converted voltage signal and generate an output signal based on at least information associated with the first converted voltage signal and the second converted voltage signal; if the second converted voltage signal is larger than the first converted voltage signal by at least a first predetermined magnitude, generate the output signal at a first logic level; and', 'if the first converted voltage signal is larger than the second converted voltage signal by at least a second predetermined magnitude, generate the output signal at a second logic level, the second logic level being different from the first logic level., 'wherein the signal ...

Подробнее
26-12-2019 дата публикации

SYSTEMS AND METHODS FOR ADJUSTING ONE OR MORE THRESHOLDS IN POWER CONVERTERS

Номер: US20190393784A1
Принадлежит:

System controller and method for a power converter. For example, the system controller includes a first current controller configured to receive a first input signal and generate a first output signal based at least in part on the first input signal, a second current controller configured to receive a compensation signal and a second input signal and generate a second output signal based at least in part on the second input signal, and a drive signal generator configured to receive the first output signal and the second output signal, generate a first drive signal based at least in part on the first output signal and the second output signal, and generate a second drive signal based at least in part on the first output signal and the second output signal. 161.-. (canceled)62. A system controller for a power converter , the system controller comprising:a drive signal generator configured to receive a first output signal from a first current controller; andan output signal generator configured to receive a second output signal and a third output signal from a second current controller; the second current controller is configured to output the second output signal and the third output signal to the output signal generator;', 'the output signal generator is configured to generate a fourth output signal based at least in part on the second output signal and the third output signal; and', 'the drive signal generator is configured to generate a first drive signal based at least in part on the first output signal and the fourth output signal, and generate a second drive signal based at least in part on the first output signal and the fourth output signal;, 'wherein in response to the first output signal being at a first logic level and the fourth output signal being at a second logic level, generate, with or without a first delay, the first drive signal at a third logic level; and', 'in response to the first output signal being at the second logic level and the fourth ...

Подробнее
01-05-2003 дата публикации

Adaptive relative and absolute address coding CMOS imager technique and system architecture

Номер: US20030081134A1
Принадлежит:

An imaging architecture is provided employing CMOS imaging sensors. The imaging architecture utilizes time domain sampling techniques to extract image data from a photodiode (PD) pixel array. The CMOS imaging architecture associates time index values with firing of CMOS imaging sensors in response to a capture of an image. The time index values correspond to the brightness of the illumination received by the CMOS imaging sensor. The time index value associated with the firing of the CMOS imaging sensor can be stored and employed in reconstruction of the image. The imaging architecture includes systems and methods for reading and compressing imaging data extracted from the PD pixel array.

Подробнее
15-06-2010 дата публикации

High data rate envelope detector for high speed optical storage application

Номер: US0007737731B1

To detect the peaks level of an incoming signal, the difference between the voltage level of the incoming signal and a voltage developed across a capacitor is amplified. The amplified difference signal is applied to a transconductor adapted to vary its output current in response to changes in the amplified difference signal. The variations in the current generated by the transconductor are used to change a current flowing through a current mirror that charges the capacitor. The voltage developed across the capacitor represents the detected peak. The capacitor is discharged to a predefined voltage level during the reset periods. A second amplifier receiving the capacitor voltage is optionally used to develop a voltage across a second capacitor that is not reset and thus carries only the detected peak levels.

Подробнее
30-08-2016 дата публикации

Systems and methods for two-level protection of power conversion systems

Номер: US0009431891B2

Systems and methods are provided for protecting a power conversion system. A system controller includes a two-level protection component and a driving component. The two-level protection component is configured to detect an output power of a power conversion system and generate a protection signal based on at least information associated with the output power. The driving component is configured to generate a drive signal based on at least information associated with the protection signal and output the drive signal to a switch associated with a primary current flowing through a primary winding of the power conversion system. The driving component is further configured to generate the drive signal corresponding to a first switching frequency to generate the output power equal to a first power threshold and generate the drive signal corresponding to a second switching frequency to generate the output power equal to a second power threshold.

Подробнее
06-01-2009 дата публикации

System and method to facilitate time domain sampling for solid state imager

Номер: US0007474345B2

A time domain sampling technique for a CMOS imager enables a wide dynamic range and flexibility by employing up to two-degrees of freedom during such sampling. Two degrees of freedom can be achieved by making one or both of an integration time and a reference (e.g., voltage or current) variable during sampling. The sampling (or image capture) is implemented by associating a time with when a pixel has a desired value relative to the reference in response to the pixel receiving incident light. The reference can be fixed or variable during different portions of the sampling, and further can be programmable to implement a desired sampling pattern for a given application.

Подробнее
30-08-2018 дата публикации

SYSTEMS AND METHODS WITH TIMING CONTROL FOR SYNCHRONIZATION RECTIFIER CONTROLLERS

Номер: US20180248488A1
Принадлежит:

System controller and method for regulating a power converter. For example, the system controller includes a first controller terminal and a second controller terminal. The system controller is configured to: receive, at the first controller terminal, an input signal; generate a drive signal based at least in part on the input signal, the drive signal being associated with an on-time period and an off-time period, the on-time period including a first beginning and a first end; and output, at the second controller terminal, the drive signal to a switch to close the switch during the on-time period and open the switch during the off-time period to affect a current associated with a secondary winding of the power converter. The system controller is further configured to detect a demagnetization period associated with the secondary winding based at least in part on the input signal. 1. A system controller for regulating a power converter , the system controller comprising:a first controller terminal; anda second controller terminal; receive, at the first controller terminal, an input signal;', 'generate a drive signal based at least in part on the input signal, the drive signal being associated with an on-time period and an off-time period, the on-time period including a first beginning and a first end; and', 'output, at the second controller terminal, the drive signal to a switch to close the switch during the on-time period and open the switch during the off-time period to affect a current associated with a secondary winding of the power converter;, 'wherein the system controller is configured to detect a demagnetization period associated with the secondary winding based at least in part on the input signal, the demagnetization period including a second beginning and a second end, the second beginning being the same as the first beginning, the second end following the first end;', 'determine a time duration from the first end to the second end, the time duration minus ...

Подробнее
26-06-2014 дата публикации

SYSTEMS AND METHODS FOR SOURCE SWITCHING AND VOLTAGE GENERATION

Номер: US20140177280A1

System and method for regulating a power conversion system. An example system controller for regulating a power conversion system includes a first controller terminal associated with a first controller voltage and coupled to a first transistor terminal of a first transistor, the first transistor further including a second transistor terminal and a third transistor terminal, the second transistor terminal being coupled to a primary winding of a power conversion system, a second controller terminal associated with a second controller voltage and coupled to the third transistor terminal, and a third controller terminal associated with a third controller voltage. The first controller voltage is equal to a sum of the third controller voltage and a first voltage difference. The second controller voltage is equal to a sum of the third controller voltage and a second voltage difference. 1. A system controller for regulating a power conversion system , the system controller comprising:a first controller terminal associated with a first controller voltage and coupled to a first transistor terminal of a first transistor, the first transistor further including a second transistor terminal and a third transistor terminal, the second transistor terminal being coupled to a primary winding of a power conversion system;a second controller terminal associated with a second controller voltage and coupled to the third transistor terminal; anda third controller terminal associated with a third controller voltage; the first controller voltage is equal to a sum of the third controller voltage and a first voltage difference; and', 'the second controller voltage is equal to a sum of the third controller voltage and a second voltage difference;, 'wherein keep the first voltage difference constant; and', 'change the second voltage difference to turn on or off the first transistor and to affect a primary current flowing through the primary winding., 'wherein the system controller is configured ...

Подробнее
23-11-2017 дата публикации

TWO-TERMINAL INTEGRATED CIRCUITS WITH TIME-VARYING VOLTAGE-CURRENT CHARACTERISTICS INCLUDING PHASED-LOCKED POWER SUPPLIES

Номер: US20170339757A1
Принадлежит:

A two-terminal IC chip and method thereof. For example, a two-terminal IC chip includes a first chip terminal and a second chip terminal. A first terminal voltage is a voltage of the first chip terminal, a second terminal voltage is a voltage of the second chip terminal, and a chip voltage is equal to a difference between the first terminal voltage and the second terminal voltage. The chip is configured to allow a chip current to flow into the chip at the first chip terminal and out of the chip at the second chip terminal, or to flow into the chip at the second chip terminal and out of the chip at the first chip terminal. The chip current is larger than or equal to zero in magnitude. The chip is further configured to change a relationship between the chip voltage and the chip current with respect to time. The chip is an integrated circuit, and the chip does not include any additional chip terminal other than the first chip terminal and the second chip terminal. 1. A two-terminal IC chip , the chip comprising:a first chip terminal; anda second chip terminal; a first terminal voltage is a voltage of the first chip terminal;', 'a second terminal voltage is a voltage of the second chip terminal; and', 'a chip voltage is equal to a difference between the first terminal voltage and the second terminal voltage;, 'whereinwherein the chip is configured to allow a chip current to flow into the chip at the first chip terminal and out of the chip at the second chip terminal, or to flow into the chip at the second chip terminal and out of the chip at the first chip terminal, the chip current being larger than or equal to zero in magnitude;wherein the chip is further configured to change a relationship between the chip voltage and the chip current with respect to time; the chip is an integrated circuit; and', 'the chip does not include any additional chip terminal other than the first chip terminal and the second chip terminal., 'wherein2. The two-terminal IC chip of is further ...

Подробнее
14-04-2020 дата публикации

Systems and methods for regulating power conversion systems with output detection and synchronized rectifying mechanisms

Номер: US0010622902B2

System controller and method for regulating a power converter. For example, the system controller includes a first controller terminal and a second controller terminal. The system controller is configured to receive an input signal at the first controller terminal and generate a drive signal at the second controller terminal based at least in part on the input signal to turn on or off a transistor in order to affect a current associated with a secondary winding of the power converter. Additionally, the system controller is further configured to determine whether the input signal remains larger than a first threshold for a first time period that is equal to or longer than a first predetermined duration.

Подробнее
30-05-2019 дата публикации

Acrylic Emulsion Adhesives

Номер: US20190161655A1
Принадлежит:

Methods of forming acrylate polymers using emulsion polymerization techniques are described. The resulting acrylate polymers exhibit characteristics enabling their use in adhesives and replacing acrylic polymers formed by solvent-based polymerization methods. Various polymers and adhesives utilizing such polymers are also described. 1. An emulsion-based method of forming acrylate polymers , the method comprising:preparing a monomer phase including (i) one or more acrylate monomers, (ii) a controlled architecture acrylate oligomer, and (iii) one or more acrylate co-stabilizers;emulsifying the monomer phase using one or more copolymerizable surfactants to form a mini-emulsion;preparing a seed latex from the mini-emulsion.2. The method of further comprising:preparing a controlled architecture acrylate oligomer; andisolating the controlled architecture acrylate oligomer.3. The method of wherein the controlled architecture acrylate oligomer is prepared by solvent polymerization.4. The method of wherein the controlled architecture acrylate oligomer is prepared by combining (i) one or more acrylate monomers claim 2 , (ii) one or more agents for controlled free radical polymerization claim 2 , and optionally (iii) one or more comonomers.5. The method of wherein the agent for controlled free radical polymerization includes dibenzyl trithiocarbonate (DBTTC).6. The method of further comprising:growing the seed latex using emulsion polymerization to thereby form acrylate polymers.7. The method of wherein the preparation of the monomer phase includes one or more tackifiers.8. The method of wherein the tackifier is selected from the group consisting of a hydrocarbon resin claim 7 , hydrogenated hydrocarbon resin claim 7 , a fully hydrogenated hydrocarbon resin claim 7 , a hydrogenated rosin ester claim 7 , a fully hydrogenated rosin ester claim 7 , and combinations thereof.9. The method of wherein the controlled architecture acrylate oligomer has a number average molecular weight ...

Подробнее
18-04-2013 дата публикации

SYSTEMS AND METHODS FOR DRIVING TRANSISTORS WITH HIGH THRESHOLD VOLTAGES

Номер: US20130093474A1

System and method are provided for driving a transistor. The system includes a floating-voltage generator, a first driving circuit, and a second driving circuit. The floating-voltage generator is configured to receive a first bias voltage and generate a floating voltage, the floating-voltage generator being further configured to change the floating voltage if the first bias voltage changes and to maintain the floating voltage to be lower than the first bias voltage by a first predetermined value in magnitude. The first driving circuit is configured to receive an input signal, the first bias voltage and the floating voltage. The second driving circuit is configured to receive the input signal, a second bias voltage and a third bias voltage, the first driving circuit and the second driving circuit being configured to generate an output signal to drive a transistor.

Подробнее
23-06-2020 дата публикации

Systems and methods for adjusting one or more thresholds in power converters

Номер: US0010693374B2

System controller and method for a power converter. For example, the system controller includes a first current controller configured to receive a first input signal and generate a first output signal based at least in part on the first input signal, a second current controller configured to receive a compensation signal and a second input signal and generate a second output signal based at least in part on the second input signal, and a drive signal generator configured to receive the first output signal and the second output signal, generate a first drive signal based at least in part on the first output signal and the second output signal, and generate a second drive signal based at least in part on the first output signal and the second output signal.

Подробнее
20-10-2020 дата публикации

Ligand for orphan nuclear receptor Nur77 and uses thereof

Номер: US0010808005B2

Provided are use of a compound of Formula I as a ligand of orphan nulear receptor Nur77, and in the prevention or treatment of a orphan nulear receptor Nur77 associated disease, ...

Подробнее
03-07-2018 дата публикации

Cathode formed using aqueous slurry

Номер: US0010014518B2

In one embodiment, a positive electrode is formed by a process that includes forming a slurry including particles dispersed within a liquid from a electrode formulation and the liquid such that the particles have a particle size distribution D50 of 15 microns or less, coating the slurry on a collector; and drying the coated collector to form the positive electrode. The electrode formulation includes an electrode active material, a conductive carbon source, an organic polymeric binder, and a water-soluble polymer. The liquid consists essentially of water or a mixture of water and an alcohol. When the liquid consists essentially of the mixture, the alcohol is present in an amount of less than 10% by weight, based on the weight of the slurry. When the liquid consists essentially of water, the slurry is formed from the electrode formulation, the liquid, and an arene-capped polyoxoethylene surfactant.

Подробнее
04-07-2006 дата публикации

Adaptive relative and absolute address coding CMOS imager technique and system architecture

Номер: US0007071982B2

An imaging architecture is provided employing CMOS imaging sensors. The imaging architecture utilizes time domain sampling techniques to extract image data from a photodiode (PD) pixel array. The CMOS imaging architecture associates time index values with firing of CMOS imaging sensors in response to a capture of an image. The time index values correspond to the brightness of the illumination received by the CMOS imaging sensor. The time index value associated with the firing of the CMOS imaging sensor can be stored and employed in reconstruction of the image. The imaging architecture includes systems and methods for reading and compressing imaging data extracted from the PD pixel array.

Подробнее
04-12-2018 дата публикации

Systems and methods with timing control for synchronization rectifier controllers

Номер: US0010148189B2

System controller and method for regulating a power converter. For example, the system controller includes a first controller terminal and a second controller terminal. The system controller is configured to: receive, at the first controller terminal, an input signal; generate a drive signal based at least in part on the input signal, the drive signal being associated with an on-time period and an off-time period, the on-time period including a first beginning and a first end; and output, at the second controller terminal, the drive signal to a switch to close the switch during the on-time period and open the switch during the off-time period to affect a current associated with a secondary winding of the power converter. The system controller is further configured to detect a demagnetization period associated with the secondary winding based at least in part on the input signal.

Подробнее
24-11-2016 дата публикации

SYSTEMS AND METHODS FOR OVER-TEMPERATURE PROTECTION AND OVER-VOLTAGE PROTECTION FOR POWER CONVERSION SYSTEMS

Номер: US20160344180A1
Принадлежит:

Systems and methods are provided for protecting a power conversion system. A system controller includes a first controller terminal and a second controller terminal. The first controller terminal is configured to provide a drive signal to close and open a switch to affect a first current flowing through a primary winding of a power conversion system. The second controller terminal is configured to receive first input signals during one or more first switching periods and receive second input signals during one or more second switching periods. The system controller is configured to determine whether a temperature associated with the power conversion system is larger than a predetermined temperature threshold, and in response to the temperature associated with the power conversion system being larger than the predetermined temperature threshold, generate the drive signal to cause the switch open and remain open to protect the power conversion system. 1. A system controller for protecting a power conversion system , the system controller comprising:a first controller terminal configured to provide a drive signal to close and open a switch to affect a first current flowing through a primary winding of a power conversion system, the drive signal being associated with one or more switching periods including one or more first switching periods and one or more second switching periods; anda second controller terminal configured to receive one or more first input signals during the one or more first switching periods and receive one or more second input signals during the one or more second switching periods; process information associated with the first input signals;', 'determine whether a temperature associated with the power conversion system is larger than a predetermined temperature threshold based on at least information associated with the first input signals; and', 'in response to the temperature associated with the power conversion system being larger than the ...

Подробнее
22-07-2021 дата публикации

SYSTEMS AND METHODS FOR LOW CURRENT DETECTION

Номер: US20210226470A1
Автор: Qiang Luo, Lieyi Fang
Принадлежит:

System and method for charging or discharging one or more batteries. For example, a battery management system for charging or discharging one or more batteries includes: a first transistor including a first transistor terminal, a second transistor terminal, and a third transistor terminal, the second transistor terminal being configured to receive a first drive signal; a second transistor including a fourth transistor terminal, a fifth transistor terminal, and a sixth transistor terminal, the fifth transistor terminal being configured to receive a second drive signal; a burst mode detector configured to receive the first drive signal and generate a burst-mode detection signal based at least in part on the first drive signal; and a drive signal generator configured to receive the burst-mode detection signal and generate the first drive signal and the second drive signal based at least in part on the burst-mode detection signal. 1. A battery management system for charging or discharging one or more batteries , the system comprising:a first transistor including a first transistor terminal, a second transistor terminal, and a third transistor terminal, the second transistor terminal being configured to receive a first drive signal;a second transistor including a fourth transistor terminal, a fifth transistor terminal, and a sixth transistor terminal, the fifth transistor terminal being configured to receive a second drive signal;a burst mode detector configured to receive the first drive signal and generate a burst-mode detection signal based at least in part on the first drive signal; anda drive signal generator configured to receive the burst-mode detection signal and generate the first drive signal and the second drive signal based at least in part on the burst-mode detection signal; the fourth transistor terminal of the second transistor is connected to the third transistor terminal of the first transistor; and', 'the third transistor terminal and the fourth ...

Подробнее
14-02-2023 дата публикации

Switch-mode power converters using hall effect sensors and methods thereof

Номер: US0011581819B2
Автор: Senlin Yang, Qiang Luo

System and method for transmitting and receiving. For example, the system includes a transmitter, one or more wires, and a receiver connected to the transmitter through the one or more wires. The transmitter is configured to generate a first current, and the receiver is configured to receive the first current. The receiver includes a coil, a Hall effect sensor, and a comparator, and the Hall effect sensor includes a first electrode and a second electrode. The coil is electrically isolated from the Hall effect sensor and configured to generate a magnetic field based at least in part on the first current flowing through the coil, and the Hall effect sensor is configured to sense the magnetic field and generate a first voltage at the first electrode and a second voltage at the second electrode. The comparator includes a first input terminal and a second input terminal.

Подробнее
13-08-2015 дата публикации

Systems and Methods for Regulating Power Conversion Systems with Output Detection and Synchronized Rectifying Mechanisms

Номер: US20150229223A1
Принадлежит:

System and method for regulating a power conversion system. A system controller for regulating a power conversion system includes a first controller terminal and a second controller terminal. Additionally, the system controller is configured to receive an input signal at the first controller terminal, and generate a drive signal at the second controller terminal based at least in part on the input signal to turn on or off a transistor in order to affect a current associated with a secondary winding of the power conversion system. Moreover, the system controller is further configured to determine whether the input signal is larger than a first threshold at a first time, in response to the input signal being determined to be larger than the first threshold at the first time, determine whether the input signal is smaller than a second threshold at a second time. 114.-. (canceled)15. A system controller for regulating a power conversion system , the system controller comprising:a first controller terminal; anda second controller terminal; receive an input signal at the first controller terminal; and', 'generate a drive signal at the second controller terminal based at least in part on the input signal to turn on or off a transistor in order to affect a current associated with a secondary winding of the power conversion system;, 'wherein the system controller is configured to determine whether the input signal remains larger than a first threshold for a time period that is longer than a predetermined duration;', determine whether the input signal is smaller than a second threshold at a time following the time period;', 'in response to the input signal being determined to be smaller than the second threshold at the time, change the drive signal at the second controller terminal from a first logic level to a second logic level., 'in response to the input signal being determined to have remained larger than the first threshold for the time period that is longer than the ...

Подробнее
04-04-2017 дата публикации

Systems and methods for high precision and/or low loss regulation of output currents of power conversion systems

Номер: US0009614445B2

Systems and methods are provided for signal processing. An example error amplifier for processing a reference signal and an input signal associated with a current of a power conversion system includes a first operational amplifier, a second operational amplifier, a first transistor, a second transistor, a current mirror component, a switch, a first resistor and a second resistor. The first operational amplifier includes a first input terminal, a second input terminal and a first output terminal, the first input terminal being configured to receive a reference signal. The first transistor includes a first transistor terminal, a second transistor terminal and a third transistor terminal, the first transistor terminal being configured to receive a first amplified signal from the first output terminal, the third transistor terminal being coupled to the second input terminal.

Подробнее
03-11-2016 дата публикации

SYSTEMS AND METHODS FOR REGULATING POWER CONVERSION SYSTEMS WITH OUTPUT DETECTION AND SYNCHRONIZED RECTIFYING MECHANISMS

Номер: US20160322909A1
Принадлежит:

System and method for regulating a power conversion system. A system controller for regulating a power conversion system includes a first controller terminal and a second controller terminal. Additionally, the system controller is configured to receive an input signal at the first controller terminal, and generate a drive signal at the second controller terminal based at least in part on the input signal to turn on or off a transistor in order to affect a current associated with a secondary winding of the power conversion system. Moreover, the system controller is further configured to determine whether the input signal is larger than a first threshold at a first time, in response to the input signal being determined to be larger than the first threshold at the first time, determine whether the input signal is smaller than a second threshold at a second time. 1. A system controller for regulating a power conversion system , the system controller comprising:a first controller terminal; anda second controller terminal; receive an input signal at the first controller terminal; and', 'generate a drive signal at the second controller terminal based at least in part on the input signal to turn on or off a transistor in order to affect a current associated with a secondary winding of the power conversion system;, 'wherein the system controller is configured to determine whether the input signal is larger than a first threshold at a first time;', determine whether the input signal is smaller than a second threshold at a second time, the second time being after the first time;', 'in response to the input signal being determined to be smaller than the second threshold at the second time, change the drive signal at the second controller terminal from a first logic level to a second logic level., 'in response to the input signal being determined to be larger than the first threshold at the first time,'}], 'wherein the system controller is further configured to2. The system ...

Подробнее
08-10-2020 дата публикации

TWO-TERMINAL INTEGRATED CIRCUITS WITH TIME-VARYING VOLTAGE-CURRENT CHARACTERISTICS INCLUDING PHASED-LOCKED POWER SUPPLIES

Номер: US20200323062A1
Принадлежит:

A two-terminal IC chip and method thereof. For example, a two-terminal IC chip includes a first chip terminal and a second chip terminal. A first terminal voltage is a voltage of the first chip terminal, a second terminal voltage is a voltage of the second chip terminal, and a chip voltage is equal to a difference between the first terminal voltage and the second terminal voltage. The chip is configured to allow a chip current to flow into the chip at the first chip terminal and out of the chip at the second chip terminal, or to flow into the chip at the second chip terminal and out of the chip at the first chip terminal. The chip current is larger than or equal to zero in magnitude. The chip is further configured to change a relationship between the chip voltage and the chip current with respect to time. The chip is an integrated circuit, and the chip does not include any additional chip terminal other than the first chip terminal and the second chip terminal. 124.-. (canceled)25. A two-terminal IC chip , the chip comprising:a first chip terminal;a second chip terminal;a first switch configured to receive a first signal; anda first power supply coupled to the first switch; closed during a first time duration in response to the first signal; and', 'open during a second time duration in response to the first signal;, 'wherein the first switch is configured to be in response to the first switch being closed, receive a first power through the first switch and store the received first power during the first time duration; and', 'in response to the first switch being open, not store any additional power and not allow stored power to leak out through the first switch during the second time duration;, 'wherein the first power supply is configured towherein the first power supply is further configured to output a second power during the first time duration and the second time duration; a first terminal voltage is a voltage of the first chip terminal;', 'a second terminal ...

Подробнее
09-08-2016 дата публикации

Systems and methods for dimming control with capacitive loads

Номер: US0009414455B2

System and method for dimming control. The system includes a system controller including a first controller terminal and a second controller terminal, a transistor including a first transistor terminal, a second transistor terminal and a third transistor terminal, and a resistor including a first resistor terminal and a second resistor terminal. The system controller is configured to generate a first signal at the first controller terminal based on an input signal and to generate a second signal at the second controller terminal based on the first signal. The first transistor terminal is coupled to the second controller terminal. The first resistor terminal is coupled to the second transistor terminal. The second resistor terminal is coupled to the third transistor terminal. The transistor is configured to receive the second signal at the first transistor terminal and to change between two conditions in response to the second signal.

Подробнее
26-04-2022 дата публикации

Switch-mode power converters using hall effect sensors and methods thereof

Номер: US0011316442B2
Автор: Senlin Yang, Qiang Luo

System and method for a power converter. For example, the system includes a first controller; a first transmitter; a first receiver; one or more first wires; one or more second wires; a second controller; a second receiver connected to the first transmitter through the one or more first wires; and a second transmitter connected to the first receiver through the one or more second wires. The first controller is configured to output a first control signal to a first switch to affect a first current flowing through a primary winding of a power converter; and generate a first input signal. The first transmitter is configured to receive the first input signal and generate the first current. The second receiver includes a first coil configured to generate a first magnetic field based at least in part on the first current flowing through the first coil.

Подробнее
27-08-2013 дата публикации

Systems and methods of signal synchronization for driving light emitting diodes

Номер: US0008519754B2

System and method for signal synchronization. The system includes a first selection component, a first signal generator, a second signal generator and a first gate drive component. The first selection component is configured to receive a first mode signal and generate a first selection signal based on at least information associated with the first mode signal. The first signal generator is configured to, if the first selection signal satisfies one or more first conditions, receive a first input signal and generate at least a first clock signal based on at least information associated with the first input signal. Furthermore, the first gate drive component is configured to, if the first selection signal satisfies the one or more first conditions, receive at least the first clock signal and output a first drive signal to a first switch.

Подробнее
29-01-2019 дата публикации

Systems and methods for enhancing dynamic response of power conversion systems

Номер: US0010193443B2

System and method for regulating a power conversion system. For example, a system controller for regulating a power conversion system includes an amplifier, a variable-resistance component, a capacitor, and a modulation and drive component. The amplifier is configured to receive a reference signal and a feedback signal associated with an output signal of the power conversion system, the amplifier including an amplifier terminal. The variable-resistance component is associated with a first variable resistance value, the variable-resistance component including a first component terminal and a second component terminal, the first component terminal being coupled with the amplifier terminal. The capacitor includes a first capacitor terminal and a second capacitor terminal, the first capacitor terminal being coupled with the second component terminal. The modulation and drive component includes a first terminal and a second terminal, the first terminal being coupled with the amplifier terminal ...

Подробнее
26-04-2022 дата публикации

Two stage methods for processing adhesives and related compositions

Номер: US0011312884B2
Принадлежит: Avery Dennison Corporation

Methods for forming melt processable, actinic radiation polymerizable and crosslinkable adhesives are described. In certain versions, the adhesives or pre-adhesive compositions include two initiators and are polymerized and/or crosslinked by exposure to actinic radiation such as UV light or electron beam radiation. Also described are pre-adhesive compositions including polymerizable monomers, articles including the adhesives, and various methods and systems related to the adhesives and their application. In addition, various apparatuses are described for polymerizing or crosslinking the compositions.

Подробнее
26-03-2015 дата публикации

SYSTEMS AND METHODS FOR CURRENT MATCHING OF LED STRINGS

Номер: US20150084526A1
Принадлежит:

System and method are provided for regulating a string current flowing through a string of one or more light emitting diodes. A system controller includes a first controller terminal, a second controller terminal and a third controller terminal. The first controller terminal is coupled to a base terminal of a bipolar junction transistor, the bipolar junction transistor further including an emitter terminal and a collector terminal, the collector terminal being connected to the string of one or more light emitting diodes. The second controller terminal is coupled to the emitter terminal of the bipolar junction transistor and to a first resistor terminal of a resistor associated with a resistance. The third controller terminal is coupled to a second resistor terminal of the resistor. In addition, the system controller is configured to receive a reference voltage, receive an emitter voltage, and output a base current. 1. A system controller for regulating a string current flowing through a string of one or more light emitting diodes , the system controller comprising:a first controller terminal coupled to a base terminal of a bipolar junction transistor, the bipolar junction transistor further including an emitter terminal and a collector terminal, the collector terminal being connected to the string of one or more light emitting diodes;a second controller terminal coupled to the emitter terminal of the bipolar junction transistor and to a first resistor terminal of a resistor associated with a resistance; anda third controller terminal coupled to a second resistor terminal of the resistor; receive a reference voltage;', 'receive an emitter voltage from the emitter terminal of the bipolar junction transistor through the second controller terminal;', 'output a base current related to the base terminal of the bipolar junction transistor through the first controller terminal based on at least information associated with the reference voltage and the emitter voltage;', ' ...

Подробнее
23-06-2020 дата публикации

Systems and methods for temperature control in light-emitting-diode lighting systems

Номер: US0010694599B2

Systems and methods are provided for regulating one or more currents. An example system controller includes: a thermal detector configured to detect a temperature associated with the system controller and generate a thermal detection signal based at least in part on the detected temperature; and a modulation-and-driver component configured to receive the thermal detection signal and generate a drive signal based at least in part on the thermal detection signal to close or open a switch to affect a drive current associated with one or more light emitting diodes. The modulation-and-driver component is further configured to, in response to the detected temperature increasing from a first temperature threshold but remaining smaller than a second temperature threshold, generate the drive signal to keep the drive current at a first current magnitude, the second temperature threshold being higher than the first temperature threshold.

Подробнее
14-05-2019 дата публикации

Acrylic emulsion adhesives

Номер: US0010287464B2

Methods of forming acrylate polymers using emulsion polymerization techniques are described. The resulting acrylate polymers exhibit characteristics enabling their use in adhesives and replacing acrylic polymers formed by solvent-based polymerization methods. Various polymers and adhesives utilizing such polymers are also described.

Подробнее
09-03-2021 дата публикации

Systems and methods for source switching and voltage generation

Номер: US0010944325B2

System and method for regulating a power conversion system. An example system controller for regulating a power conversion system includes a first controller terminal associated with a first controller voltage and coupled to a first transistor terminal of a first transistor, the first transistor further including a second transistor terminal and a third transistor terminal, the second transistor terminal being coupled to a primary winding of a power conversion system, a second controller terminal associated with a second controller voltage and coupled to the third transistor terminal, and a third controller terminal associated with a third controller voltage. The first controller voltage is equal to a sum of the third controller voltage and a first voltage difference. The second controller voltage is equal to a sum of the third controller voltage and a second voltage difference.

Подробнее
29-01-2019 дата публикации

Switching controllers and methods for loads

Номер: US0010193510B1

System controller and method for providing at least an output voltage. For example, the system controller includes a first controller terminal configured to receive an input voltage. The input voltage is associated with an input-voltage magnitude. Additionally, the system controller includes a second controller terminal configured to receive a control voltage, and a third controller terminal configured to output an output voltage to a load. Moreover, the system controller includes a supply voltage generator configured to receive the input voltage from the first controller terminal and generate a supply voltage. The supply voltage is associated with a supply voltage magnitude. Also, the system controller includes a ramp voltage generator configured to receive the supply voltage and generate a ramp voltage.

Подробнее
26-11-2019 дата публикации

Systems and methods for over-temperature protection and over-voltage protection for power conversion systems

Номер: US0010490998B2

Systems and methods are provided for protecting a power conversion system. A system controller includes a first controller terminal and a second controller terminal. The first controller terminal is configured to provide a drive signal to close and open a switch to affect a first current flowing through a primary winding of a power conversion system. The second controller terminal is configured to receive first input signals during one or more first switching periods and receive second input signals during one or more second switching periods. The system controller is configured to determine whether a temperature associated with the power conversion system is larger than a predetermined temperature threshold, and in response to the temperature associated with the power conversion system being larger than the predetermined temperature threshold, generate the drive signal to cause the switch open and remain open to protect the power conversion system.

Подробнее
11-06-2020 дата публикации

SWITCH-MODE POWER CONVERTERS USING HALL EFFECT SENSORS AND METHODS THEREOF

Номер: US20200186050A1
Принадлежит: On Bright Electronics Shanghai Co Ltd

System and method for transmitting and receiving. For example, the system includes a transmitter, one or more wires, and a receiver connected to the transmitter through the one or more wires. The transmitter is configured to generate a first current, and the receiver is configured to receive the first current. The receiver includes a coil, a Hall effect sensor, and a comparator, and the Hall effect sensor includes a first electrode and a second electrode. The coil is electrically isolated from the Hall effect sensor and configured to generate a magnetic field based at least in part on the first current flowing through the coil, and the Hall effect sensor is configured to sense the magnetic field and generate a first voltage at the first electrode and a second voltage at the second electrode. The comparator includes a first input terminal and a second input terminal.

Подробнее
21-09-2021 дата публикации

Method for preparing cellulose fiber

Номер: US0011124899B2
Принадлежит: CHINA TEXTILE ACADEMY, China Textile Academy

The present disclosure discloses a method for preparing cellulose fiber. The method includes the following steps: 1) mixing cellulose pulp with NMMO aqueous solution of a mass concentration of 60%-85%, preferably 70% to 76%, to obtain a uniform mixture; 2) subjecting the obtained uniform mixture to dewatering for swelling, dissolution, and deaerating to obtain a cellulose spinning stock solution; 3) the cellulose spinning stock solution entering into a spinning machine after being filtered and heat exchange, and entering into a coagulation system after carrying out extruding by a spinneret-pack and cooling by air, and then coagulating in a NMMO coagulating bath of a mass concentration of 50% to 72% to obtain nascent fiber; and 4) subjecting the nascent fiber to rinsing to obtain a fiber filament bundle, and then, performing subsequent-section treatment to obtain cellulose fiber.

Подробнее
14-07-2009 дата публикации

Charge diffusion crosstalk reduction for image sensors

Номер: US0007561194B1
Автор: Qiang Luo, LUO QIANG

A charge diffusion crosstalk reduction process is provided for image signals from, for example, a CMOS image sensor. Charge diffusion crosstalk processing can be used in accordance with aspects of the present invention to reduce charge diffusion crosstalk caused by electrons migrating from adjacent pixels. Crosstalk effects can be determined by color gain and color offset. By adjusting the color gain and color offset, crosstalk can be cancelled to the first order. Charge diffusion crosstalk processing in accordance with aspects of the present invention can be relatively easily integrated with color correction processing during the post processing of image sensors. Color correction and cross talk cancellation processing can use the same circuitry as previously used before by color correction process only. The input coefficients for color correction and cross talk cancellation processing can be determined from the results of the multiplication of color correction matrix ...

Подробнее
05-10-2023 дата публикации

Method for Preparing Multi-Tab Battery

Номер: US20230318021A1
Принадлежит:

Disclosed is a method for preparing a multi-tab battery. Each of a positive pole piece and a negative pole piece is provided with two or more groups of current collectors, aluminum strips or nickel strips that are used as tabs are arranged on the corresponding current collectors by means of spot welding, so as to form two or more groups of tab leading-out ends; then, the two or more groups of tab leading-out ends are overlapped through a winding manner; tab dual-output or multi-output is used for improving the problem that the consistency of winding tightness of wound battery cores is poor; the contact area between the tabs and the current collectors is effectively improved, the rate discharge capabilities of lithium-ion batteries is improved, and the charging efficiency is greatly improved, thus realizing fast charge.

Подробнее
02-04-2013 дата публикации

Writing instrument

Номер: US000D679326S1
Принадлежит: Sanford, L.P.

Подробнее
14-02-2023 дата публикации

Systems and methods for regulating power conversion systems with output detection and synchronized rectifying mechanisms

Номер: US0011581815B2

System controller and method for regulating a power converter. For example, the system controller includes a first controller terminal and a second controller terminal. The system controller is configured to receive an input signal at the first controller terminal and generate a drive signal at the second controller terminal based at least in part on the input signal to turn on or off a transistor in order to affect a current associated with a secondary winding of the power converter. Additionally, the system controller is further configured to determine whether the input signal remains larger than a first threshold for a first time period that is equal to or longer than a first predetermined duration.

Подробнее
19-11-2019 дата публикации

Systems and methods with prediction mechanisms for synchronization rectifier controllers

Номер: US0010483856B2

System controller and method for regulating a power converter. For example, the system controller includes a first controller terminal and a second controller terminal. The system controller is configured to receive, at the first controller terminal, an input signal, generate a drive signal based at least in part on the input signal, and output, at the second controller terminal, the drive signal to a switch to affect a current associated with a secondary winding of the power converter. The system controller is further configured to detect a first duration of a demagnetization period associated with the secondary winding based at least in part on the input signal, determine a second duration of a time period for the drive signal based at least in part on the first duration, and keep the drive signal at a first logic level during the entire time period.

Подробнее
17-08-2021 дата публикации

Two stage methods for processing adhesives and related compositions

Номер: US0011091675B2

Methods for forming melt processable, actinic radiation polymerizable and crosslinkable adhesives are described. In certain versions, the adhesives or pre-adhesive compositions include two initiators and are polymerized and/or crosslinked by exposure to actinic radiation such as UV light or electron beam radiation. Also described are pre-adhesive compositions including polymerizable monomers, articles including the adhesives, and various methods and systems related to the adhesives and their application. In addition, various apparatuses are described for polymerizing or crosslinking the compositions.

Подробнее
20-03-2014 дата публикации

SYSTEMS AND METHODS FOR VOLTAGE CONTROL AND CURRENT CONTROL OF POWER CONVERSION SYSTEMS WITH MULTIPLE OPERATION MODES

Номер: US20140078790A1

System and method for regulating a power conversion system. A system controller for regulating a power conversion system includes an operation-mode-selection component and a driving component. The operation-mode-selection component is configured to receive a first signal related to an output load of the power conversion system and a second signal related to an input signal received by the power conversion system and output a mode-selection signal based on at least information associated with the first signal and the second signal. The driving component is configured to receive the mode-selection signal and generate a drive signal based on at least information associated with the mode-selection signal, the driving signal corresponding to a switching frequency. 1. A system controller for regulating a power conversion system , the system controller comprising:an operation-mode-selection component configured to receive a first signal related to an output load of the power conversion system and a second signal related to an input signal received by the power conversion system and output a mode-selection signal based on at least information associated with the first signal and the second signal; anda driving component configured to receive the mode-selection signal and generate a drive signal based on at least information associated with the mode-selection signal, the driving signal corresponding to a switching frequency; if the output load is determined to be larger than a first load threshold in magnitude and the input signal is determined to be larger than an input threshold, generate the mode-selection signal corresponding to a quasi-resonant mode if the switching frequency is determined to be smaller than a first frequency threshold and larger than a second frequency threshold; and', 'if the output load is determined to be larger than the first load threshold in magnitude and the input signal is determined to be smaller than the input threshold, generate the mode- ...

Подробнее
09-04-2019 дата публикации

Systems and methods for source switching and voltage generation

Номер: US0010256734B2

System and method for regulating a power conversion system. An example system controller for regulating a power conversion system includes a first controller terminal associated with a first controller voltage and coupled to a first transistor terminal of a first transistor, the first transistor further including a second transistor terminal and a third transistor terminal, the second transistor terminal being coupled to a primary winding of a power conversion system, a second controller terminal associated with a second controller voltage and coupled to the third transistor terminal, and a third controller terminal associated with a third controller voltage. The first controller voltage is equal to a sum of the third controller voltage and a first voltage difference. The second controller voltage is equal to a sum of the third controller voltage and a second voltage difference.

Подробнее
25-08-2020 дата публикации

Switching controllers and methods for loads

Номер: US0010756687B2
Автор: Miao Li, Qiang Luo, Lieyi Fang

System controller and method for providing at least an output voltage. For example, the system controller includes a first controller terminal configured to receive an input voltage. The input voltage is associated with an input-voltage magnitude. Additionally, the system controller includes a second controller terminal configured to receive a control voltage, and a third controller terminal configured to output an output voltage to a load. Moreover, the system controller includes a supply voltage generator configured to receive the input voltage from the first controller terminal and generate a supply voltage. The supply voltage is associated with a supply voltage magnitude. Also, the system controller includes a ramp voltage generator configured to receive the supply voltage and generate a ramp voltage.

Подробнее
08-08-2013 дата публикации

SYSTEMS AND METHODS OF LEVEL SHIFTING FOR VOLTAGE DRIVERS

Номер: US20130200938A1

System and method for controlling one or more switches. The system includes a first converting circuit, a second converting circuit, and a signal processing component. The first converting circuit is configured to convert a first current and generate a first converted voltage signal based on at least information associated with the first current. The second converting circuit is configured to convert a second current and generate a second converted voltage signal based on at least information associated with the second current. The signal processing component is configured to receive the first converted voltage signal and the second converted voltage signal and generate an output signal based on at least information associated with the first converted voltage signal and the second converted voltage signal. 1. A system for controlling one or more switches , the system comprising:a first converting circuit configured to convert a first current and generate a first converted voltage signal based on at least information associated with the first current;a second converting circuit configured to convert a second current and generate a second converted voltage signal based on at least information associated with the second current; anda signal processing component configured to receive the first converted voltage signal and the second converted voltage signal and generate an output signal based on at least information associated with the first converted voltage signal and the second converted voltage signal; if the second converted voltage signal is larger than the first converted voltage signal by at least a first predetermined magnitude, generate the output signal at a first logic level; and', 'if the first converted voltage signal is larger than the second converted voltage signal by at least a second predetermined magnitude, generate the output signal at a second logic level, the second logic level being different from the first logic level., 'wherein the signal ...

Подробнее
27-08-2019 дата публикации

Systems and methods for adjusting one or more thresholds in power converters

Номер: US0010396666B1

System controller and method for a power converter. For example, the system controller includes a first current controller configured to receive a first input signal and generate a first output signal based at least in part on the first input signal, a second current controller configured to receive a compensation signal and a second input signal and generate a second output signal based at least in part. on the second input signal, and a drive signal generator configured to receive the first output signal and the second output signal, generate a first drive signal based at least in part on the first output signal and the second output signal, and generate a second drive signal based at least in part on the first output signal and the second output signal.

Подробнее
10-09-2019 дата публикации

Systems and methods for adjusting one or more thresholds in power converters

Номер: US0010411598B2

System controller and method for a power converter. For example, the system controller includes a first current controller configured to receive a first input signal and generate a first output signal based at least in part on the first input signal, a second current controller configured to receive a compensation signal and a second input signal and generate a second output signal based at least in part on the second input signal, and a drive signal generator configured to receive the first output signal and the second output signal, generate a first drive signal based at least in part on the first output signal and the second output signal, and generate a second drive signal based at least in part on the first output signal and the second output signal.

Подробнее
23-06-2020 дата публикации

Systems and methods for adjusting one or more thresholds in power converters

Номер: US0010693375B2

System controller and method for a power converter. For example, the system controller includes a first current controller configured to receive a first input signal and generate a first output signal based at least in part on the first input signal, a second current controller configured to receive a compensation signal and a second input signal and generate a second output signal based at least in part on the second input signal, and a drive signal generator configured to receive the first output signal and the second output signal, generate a first drive signal based at least in part on the first output signal and the second output signal, and generate a second drive signal based at least in part on the first output signal and the second output signal.

Подробнее
06-12-2018 дата публикации

SYSTEMS AND METHODS FOR OVER-TEMPERATURE PROTECTION AND OVER-VOLTAGE PROTECTION FOR POWER CONVERSION SYSTEMS

Номер: US20180351350A1
Принадлежит:

Systems and methods are provided for protecting a power conversion system. A system controller includes a first controller terminal and a second controller terminal. The first controller terminal is configured to provide a drive signal to close and open a switch to affect a first current flowing through a primary winding of a power conversion system. The second controller terminal is configured to receive first input signals during one or more first switching periods and receive second input signals during one or more second switching periods. The system controller is configured to determine whether a temperature associated with the power conversion system is larger than a predetermined temperature threshold, and in response to the temperature associated with the power conversion system being larger than the predetermined temperature threshold, generate the drive signal to cause the switch open and remain open to protect the power conversion system. 145.-. (canceled)46. A system controller for protecting a power converter , the system controller comprising:a first controller terminal configured to receive a first input signal during a first switching period, receive a second input signal during a second switching period, and receive a third input signal during a third switching period; the first switching period precedes the second switching period; and', 'the second switching period precedes the third switching period;, 'wherein 'in response to a temperature associated with a power converter being larger than a predetermined temperature threshold, generate a drive signal for a switch to open and remain open to protect the power converter;', 'wherein the system controller is configured to 'in response to an output voltage associated with a secondary winding of the power converter being larger than a predetermined voltage threshold, generate the drive signal for the switch to open and remain open to protect the power converter;', 'wherein the system controller is ...

Подробнее
31-08-2021 дата публикации

Systems and methods for high precision and/or low loss regulation of output currents of power conversion systems

Номер: US0011108328B2

Systems and methods are provided for signal processing. An example error amplifier for processing a reference signal and an input signal associated with a current of a power conversion system includes a first operational amplifier, a second operational amplifier, a first transistor, a second transistor, a current mirror component, a switch, a first resistor and a second resistor. The first operational amplifier includes a first input terminal, a second input terminal and a first output terminal, the first input terminal being configured to receive a reference signal. The first transistor includes a first transistor terminal, a second transistor terminal and a third transistor terminal, the first transistor terminal being configured to receive a first amplified signal from the first output terminal, the third transistor terminal being coupled to the second input terminal.

Подробнее
10-09-2019 дата публикации

Systems and methods for regulating power conversion systems with output detection and synchronized rectifying mechanisms

Номер: US0010411604B2

System and method for regulating a power conversion system. A system controller for regulating a power conversion system includes a first controller terminal and a second controller terminal. Additionally, the system controller is configured to receive an input signal at the first controller terminal, and generate a drive signal at the second controller terminal based at least in part on the input signal to turn on or off a transistor in order to affect a current associated with a secondary winding of the power conversion system. Moreover, the system controller is further configured to determine whether the input signal is larger than a first threshold at a first time, in response to the input signal being determined to be larger than the first threshold at the first time, determine whether the input signal is smaller than a second threshold at a second time.

Подробнее
08-03-2022 дата публикации

Acrylic emulsion adhesives

Номер: US0011267999B2
Принадлежит: Avery Dennison Corporation

Methods of forming acrylate polymers using emulsion polymerization techniques are described. The resulting acrylate polymers exhibit characteristics enabling their use in adhesives and replacing acrylic polymers formed by solvent-based polymerization methods. Various polymers and adhesives utilizing such polymers are also described.

Подробнее
30-01-2018 дата публикации

Two-terminal integrated circuits with time-varying voltage-current characteristics including phased-locked power supplies

Номер: US0009883557B2

A two-terminal IC chip and method thereof. For example, a two-terminal IC chip includes a first chip terminal and a second chip terminal. A first terminal voltage is a voltage of the first chip terminal, a second terminal voltage is a voltage of the second chip terminal, and a chip voltage is equal to a difference between the first terminal voltage and the second terminal voltage. The chip is configured to allow a chip current to flow into the chip at the first chip terminal and out of the chip at the second chip terminal, or to flow into the chip at the second chip terminal and out of the chip at the first chip terminal. The chip current is larger than or equal to zero in magnitude. The chip is further configured to change a relationship between the chip voltage and the chip current with respect to time. The chip is an integrated circuit, and the chip does not include any additional chip terminal other than the first chip terminal and the second chip terminal.

Подробнее
30-05-2019 дата публикации

SYSTEMS AND METHODS FOR ENHANCING DYNAMIC RESPONSE OF POWER CONVERSION SYSTEMS

Номер: US20190165674A1
Принадлежит:

System and method for regulating a power conversion system. For example, a system controller for regulating a power conversion system includes an amplifier, a variable-resistance component, a capacitor, and a modulation and drive component. The amplifier is configured to receive a reference signal and a feedback signal associated with an output signal of the power conversion system, the amplifier including an amplifier terminal. The variable-resistance component is associated with a first variable resistance value, the variable-resistance component including a first component terminal and a second component terminal, the first component terminal being coupled with the amplifier terminal. The capacitor includes a first capacitor terminal and a second capacitor terminal, the first capacitor terminal being coupled with the second component terminal. The modulation and drive component includes a first terminal and a second terminal, the first terminal being coupled with the amplifier terminal. 12.-. (canceled)3. A system controller for regulating a power conversion system , the system controller comprising:a first amplifier configured to receive a reference signal and a feedback signal associated with an output signal of the power conversion system, the first amplifier including an amplifier terminal;a variable-resistance component associated with a first variable resistance value, the variable-resistance component including a first component terminal and a second component terminal, the first component terminal being coupled with the amplifier terminal;a first capacitor including a first capacitor terminal and a second capacitor terminal, the first capacitor terminal being coupled with the second component terminal;a modulation and drive component including a first terminal and a second terminal, the first terminal being coupled with the amplifier terminal, the modulation and drive component being configured to output a drive signal at the second terminal to a switch ...

Подробнее
08-01-2019 дата публикации

Systems and methods for high precision and/or low loss regulation of output currents of power conversion systems

Номер: US0010177665B2

Systems and methods are provided for signal processing. An example error amplifier for processing a reference signal and an input signal associated with a current of a power conversion system includes a first operational amplifier, a second operational amplifier, a first transistor, a second transistor, a current mirror component, a switch, a first resistor and a second resistor. The first operational amplifier includes a first input terminal, a second input terminal and a first output terminal, the first input terminal being configured to receive a reference signal. The first transistor includes a first transistor terminal, a second transistor terminal and a third transistor terminal, the first transistor terminal being configured to receive a first amplified signal from the first output terminal, the third transistor terminal being coupled to the second input terminal.

Подробнее
25-08-2005 дата публикации

Low dark current CMOS image sensor pixel having a photodiode isolated from field oxide

Номер: US20050184321A1
Автор: Qiang Luo
Принадлежит: National Semiconductor Corporation

A low dark current CMOS image sensor pixel comprises a photodiode that is isolated from the field oxide by forming a relatively small photodiode within a relatively large active area such that the field oxide is substantially separated from the photodiode. The active area should be large enough such that the photodiode depletion region formed during operation of the photodiode does not touch the field oxide sidewall and corner. The isolation of the photodiode from the field oxide significantly reduces the number of dislocations near the field oxide that contribute to the dark current. Accordingly, the isolation of the photodiode from the field oxide dramatically reduces the dark current of the photodiode during operation. The present invention can be formed with a conventional CMOS process without adding any additional process steps.

Подробнее
30-05-2019 дата публикации

SYSTEMS AND METHODS FOR HIGH PRECISION AND/OR LOW LOSS REGULATION OF OUTPUT CURRENTS OF POWER CONVERSION SYSTEMS

Номер: US20190165683A1
Принадлежит:

Systems and methods are provided for signal processing. An example error amplifier for processing a reference signal and an input signal associated with a current of a power conversion system includes a first operational amplifier, a second operational amplifier, a first transistor, a second transistor, a current mirror component, a switch, a first resistor and a second resistor. The first operational amplifier includes a first input terminal, a second input terminal and a first output terminal, the first input terminal being configured to receive a reference signal. The first transistor includes a first transistor terminal, a second transistor terminal and a third transistor terminal, the first transistor terminal being configured to receive a first amplified signal from the first output terminal, the third transistor terminal being coupled to the second input terminal. 131.-. (canceled)32. A system controller for regulating a power conversion system , the system controller comprising:a first controller terminal configured to receive a feedback signal associated with an output voltage of a power conversion system;a compensation component coupled to the first controller terminal and configured to sample the feedback signal during a demagnetization process of the power conversion system and generate a compensation current based on at least information associated with the sampled feedback signal; andan error amplifier including a first input terminal, a second input terminal, and an output terminal coupled to the compensation component, the first input terminal being configured to receive an input voltage, the second input terminal being configured to receive a reference voltage, the output terminal being configured to output a first output current related to a difference between the input voltage and the reference voltage in magnitude;wherein the error amplifier and the compensation component are further configured to generate a second output current equal to a ...

Подробнее
31-03-2009 дата публикации

Compact high-speed, high-resolution comparator structure

Номер: US0007511549B1
Автор: Qiang Luo, LUO QIANG

Methods and circuits for performing high-speed, high-resolution signal comparisons using offset cancellation, reduction of charge injection noise, and sharing of coupling capacitors between circuit stages. A multistage comparator circuit includes first and second preamplifiers electrically coupled to each other through series connections including coupling capacitors. A latch for storing the comparison output signal is electrically coupled to the output of the second preamplifier. The multistage comparator operates such that the offset voltages of the first preamplifier and of the second preamplifier and latch are stored on the coupling capacitors before performing comparisons.

Подробнее
20-02-2018 дата публикации

Two-terminal integrated circuits with time-varying voltage-current characteristics including phased-locked power supplies

Номер: US0009900943B2

A two-terminal IC chip and method thereof. For example, a two-terminal IC chip includes a first chip terminal, a second chip terminal, a first switch configured to receive a control signal, a first capacitor coupled to the first switch, a second switch configured to receive the control signal, a second capacitor coupled to the second switch, a third switch configured to receive the control signal, and a third capacitor coupled to the third switch. A first terminal voltage is a voltage of the first chip terminal, a second terminal voltage is a voltage of the second chip terminal, and a chip voltage is equal to a difference between the first terminal voltage and the second terminal voltage.

Подробнее
21-03-2013 дата публикации

Optical Circuit for Sensing a Biological Entity in a Fluid and Method of Configuring the Same

Номер: US20130071061A1

An optical circuit for sensing a biological entity in a fluid and a method of configuring an optical circuit for sensing a biological entity in a fluid are provided. The optical circuit includes a sensing arrangement including a reference arm having a reference waveguide and a sensing arm having a waveguide; wherein lengths of the reference waveguide and the waveguide are configured in accordance with a temperature dependency reduction criterion. 1. An optical circuit for sensing a biological entity in a fluid , comprising:a sensing arrangement comprising:a reference arm having a reference waveguide;a sensing arm having a waveguide;wherein lengths of the reference waveguide and the waveguide are configured in accordance with a temperature dependency reduction criterion.2. The optical circuit of claim 1 , wherein the lengths of the reference waveguide and the waveguide are further configured in accordance with refractive indices of the reference waveguide and the waveguide.3. The optical circuit of claim 1 , wherein the sensing arm further comprises a further waveguide coupled in series with the waveguide.4. The optical circuit of claim 3 , wherein a length of the further waveguide is configured in accordance with the temperature dependency reduction criterion.5. The optical circuit of claim 4 , wherein the length of the further waveguide is further configured in accordance with the refractive index of the reference waveguide claim 4 , the refractive index of the waveguide and a refractive index of the further waveguide.6. The optical circuit of claim 1 , wherein the reference waveguide comprises a core layer disposed above a first cladding layer and a second cladding layer disposed above the core layer and the first cladding layer.7. The optical circuit of claim 1 ,wherein the waveguide comprises a core layer disposed above a cladding layer;wherein the core layer of the waveguide comprises a first portion and a second portion;wherein the first portion is arranged ...

Подробнее
14-11-2013 дата публикации

SYSTEMS AND METHODS OF SIGNAL SYNCHRONIZATION FOR DRIVING LIGHT EMITTING DIODES

Номер: US20130300465A1
Принадлежит:

System and method for signal synchronization. The system includes a first selection component, a first signal generator, a second signal generator and a first gate drive component. The first selection component is configured to receive a first mode signal and generate a first selection signal based on at least information associated with the first mode signal. The first signal generator is configured to, if the first selection signal satisfies one or more first conditions, receive a first input signal and generate at least a first clock signal based on at least information associated with the first input signal. Furthermore, the first gate drive component is configured to, if the first selection signal satisfies the one or more first conditions, receive at least the first clock signal and output a first drive signal to a first switch. 1. A system for signal synchronization , the system comprising:a first selection component configured to receive a first mode signal and generate a first selection signal based on at least information associated with the first mode signal, the first selection signal indicating a first operation mode;a first signal generator configured to, if the first selection signal satisfies one or more first conditions, receive a first input signal and generate at least a first clock signal based on at least information associated with the first input signal, the first input signal including a first input rising edge and being associated with a first input frequency, the first clock signal including a first clock rising edge and being associated with a first clock frequency; anda second signal generator configured to, if the first selection signal satisfies one or more second conditions, generate at least a second clock signal, the second clock signal including a second clock rising edge and being associated with a second clock frequency; if the first selection signal satisfies the one or more first conditions, receive at least the first clock ...

Подробнее
09-01-2014 дата публикации

SYSTEMS AND METHODS FOR ENHANCING DYNAMIC RESPONSE OF POWER CONVERSION SYSTEMS

Номер: US20140009132A1

System and method for regulating a power conversion system. For example, a system controller for regulating a power conversion system includes an amplifier, a variable-resistance component, a capacitor, and a modulation and drive component. The amplifier is configured to receive a reference signal and a feedback signal associated with an output signal of the power conversion system, the amplifier including an amplifier terminal. The variable-resistance component is associated with a first variable resistance value, the variable-resistance component including a first component terminal and a second component terminal, the first component terminal being coupled with the amplifier terminal. The capacitor includes a first capacitor terminal and a second capacitor terminal, the first capacitor terminal being coupled with the second component terminal. The modulation and drive component includes a first terminal and a second terminal, the first terminal being coupled with the amplifier terminal. 1. A system controller for regulating a power conversion system , the system controller comprising:a first amplifier configured to receive a reference signal and a feedback signal associated with an output signal of the power conversion system, the first amplifier including an amplifier terminal;a variable-resistance component associated with a first variable resistance value, the variable-resistance component including a first component terminal and a second component terminal, the first component terminal being coupled with the amplifier terminal;a first capacitor including a first capacitor terminal and a second capacitor terminal, the first capacitor terminal being coupled with the second component terminal; anda modulation and drive component including a first terminal and a second terminal, the first terminal being coupled with the amplifier terminal, the modulation and drive component being configured to output a drive signal at the second terminal to a switch in order to ...

Подробнее
16-01-2014 дата публикации

Systems and methods for current matching of led strings

Номер: US20140015429A1
Принадлежит: Guangzhou On Bright Electronics Co Ltd

System and method are provided for regulating a string current flowing through a string of one or more light emitting diodes. A system controller includes a first controller terminal, a second controller terminal and a third controller terminal. The first controller terminal is coupled to a base terminal of a bipolar junction transistor, the bipolar junction transistor further including an emitter terminal and a collector terminal, the collector terminal being connected to the string of one or more light emitting diodes. The second controller terminal is coupled to the emitter terminal of the bipolar junction transistor and to a first resistor terminal of a resistor associated with a resistance. The third controller terminal is coupled to a second resistor terminal of the resistor. In addition, the system controller is configured to receive a reference voltage, receive an emitter voltage, and output a base current.

Подробнее
11-01-2018 дата публикации

SYSTEMS AND METHODS FOR REGULATING POWER CONVERSION SYSTEMS WITH OUTPUT DETECTION AND SYNCHRONIZED RECTIFYING MECHANISMS

Номер: US20180013352A1
Принадлежит:

System controller and method for regulating a power converter. For example, the system controller includes a first controller terminal and a second controller terminal. The system controller is configured to receive an input signal at the first controller terminal and generate a drive signal at the second controller terminal based at least in part on the input signal to turn on or off a transistor in order to affect a current associated with a secondary winding of the power converter. Additionally, the system controller is further configured to determine whether the input signal remains larger than a first threshold for a first time period that is equal to or longer than a first predetermined duration. 1. A system controller for regulating a power converter , the system controller comprising:a first controller terminal; anda second controller terminal; receive an input signal at the first controller terminal; and', 'generate a drive signal at the second controller terminal based at least in part on the input signal to turn on or off a transistor in order to affect a current associated with a secondary winding of the power converter;, 'wherein the system controller is configured to determine whether the input signal remains larger than a first threshold for a first time period that is equal to or longer than a first predetermined duration; and', 'in response to the input signal not being determined to remain larger than the first threshold for the first time period that is equal to or longer than the first predetermined duration, operate with a first mechanism;, 'wherein the system controller is further configured to determine whether the input signal remains smaller than a second threshold for a second time period that is equal to or longer than a second predetermined duration; and', 'in response to the input signal being determined to remain smaller than the second threshold for the second time period that is equal to or longer than the second predetermined ...

Подробнее
10-01-2019 дата публикации

SWITCHING CONTROLLERS AND METHODS FOR LOADS

Номер: US20190013784A1
Автор: Fang Lieyi, Li Miao, Luo Qiang
Принадлежит:

System controller and method for providing at least an output voltage. For example, the system controller includes a first controller terminal configured to receive an input voltage. The input voltage is associated with an input-voltage magnitude. Additionally, the system controller includes a second controller terminal configured to receive a control voltage, and a third controller terminal configured to output an output voltage to a load. Moreover, the system controller includes a supply voltage generator configured to receive the input voltage from the first controller terminal and generate a supply voltage. The supply voltage is associated with a supply voltage magnitude. Also, the system controller includes a ramp voltage generator configured to receive the supply voltage and generate a ramp voltage. 1. A system controller for providing at least an output voltage , the system controller comprising:a first controller terminal configured to receive an input voltage, the input voltage being associated with an input-voltage magnitude;a second controller terminal configured to receive a control voltage;a third controller terminal configured to output an output voltage to a load;a supply voltage generator configured to receive the input voltage from the first controller terminal and generate a supply voltage, the supply voltage being associated with a supply voltage magnitude; anda ramp voltage generator configured to receive the supply voltage and generate a ramp voltage; the ramp voltage increases from zero to the supply voltage magnitude at a first rate of change during a first time duration; and', 'the output voltage increases from zero to the input-voltage magnitude at a second rate of change during a second time duration;', 'wherein the second rate of change is equal to the first rate of change multiplied by a predetermined constant., 'wherein, if the control voltage is at a first logic level,'}2. The system controller of claim 1 , and further comprising a ...

Подробнее
17-04-2014 дата публикации

SYSTEMS AND METHODS FOR DRIVING TRANSISTORS WITH HIGH TRESTHOLD VOLTAGES

Номер: US20140103970A1

System and method are provided for driving a transistor. The system includes a floating-voltage generator, a first driving circuit, and a second driving circuit. The floating-voltage generator is configured to receive a first bias voltage and generate a floating voltage, the floating-voltage generator being further configured to change the floating voltage if the first bias voltage changes and to maintain the floating voltage to be lower than the first bias voltage by a first predetermined value in magnitude. The first driving circuit is configured to receive an input signal, the first bias voltage and the floating voltage. The second driving circuit is configured to receive the input signal, a second bias voltage and a third bias voltage, the first driving circuit and the second driving circuit being configured to generate an output signal to drive a transistor. 1. A system for driving a transistor , the system comprising:a floating-voltage generator configured to receive a first bias voltage and generate a floating voltage, the floating-voltage generator being further configured to change the floating voltage if the first bias voltage changes and to maintain the floating voltage to be lower than the first bias voltage by a first predetermined value in magnitude;a first driving circuit configured to receive an input signal, the first bias voltage and the floating voltage;a second driving circuit configured to receive the input signal, a second bias voltage and a third bias voltage, the first driving circuit and the second driving circuit being configured to generate an output signal to drive a transistor;wherein:the first driving circuit includes a first driving transistor, the first driving transistor being configured to receive the first bias voltage and a first gate signal, the first gate signal being associated with at least the input signal, the first bias voltage, and the floating voltage;the second driving circuit includes a second driving transistor, the ...

Подробнее
01-02-2018 дата публикации

SYSTEMS AND METHODS WITH PREDICTION MECHANISMS FOR SYNCHRONIZATION RECTIFIER CONTROLLERS

Номер: US20180034377A1
Принадлежит:

System controller and method for regulating a power converter. For example, the system controller includes a first controller terminal and a second controller terminal. The system controller is configured to receive, at the first controller terminal, an input signal, generate a drive signal based at least in part on the input signal, and output, at the second controller terminal, the drive signal to a switch to affect a current associated with a secondary winding of the power converter. The system controller is further configured to detect a first duration of a demagnetization period associated with the secondary winding based at least in part on the input signal, determine a second duration of a time period for the drive signal based at least in part on the first duration, and keep the drive signal at a first logic level during the entire time period. 1. A system controller for regulating a power converter , the system controller comprising:a first controller terminal; anda second controller terminal; receive, at the first controller terminal, an input signal;', 'generate a drive signal based at least in part on the input signal; and', 'output, at the second controller terminal, the drive signal to a switch to affect a current associated with a secondary winding of the power converter;, 'wherein the system controller is configured to detect a first duration of a demagnetization period associated with the secondary winding based at least in part on the input signal, the demagnetization period including a first beginning and a first end;', 'determine a second duration of a time period for the drive signal based at least in part on the first duration, the time period including a second beginning and a second end, the second end being after the first end; and', 'keep the drive signal at a first logic level during the entire time period to keep the switch closed during the entire time period., 'wherein the system controller is further configured to2. The system ...

Подробнее
28-02-2019 дата публикации

SYSTEMS AND METHODS WITH TIMING CONTROL FOR SYNCHRONIZATION RECTIFIER CONTROLLERS

Номер: US20190068073A1
Принадлежит:

System controller and method for regulating a power converter. For example, the system controller includes a first controller terminal and a second controller terminal. The system controller is configured to: receive, at the first controller terminal, an input signal; generate a drive signal based at least in part on the input signal, the drive signal being associated with an on-time period and an off-time period, the on-time period including a first beginning and a first end; and output, at the second controller terminal, the drive signal to a switch to close the switch during the on-time period and open the switch during the off-time period to affect a current associated with a secondary winding of the power converter. The system controller is further configured to detect a demagnetization period associated with the secondary winding based at least in part on the input signal. 118.-. (canceled)19. A method for regulating a power converter , the method comprising:receiving an input signal;generating a drive signal based at least in part on the input signal, the drive signal being associated with an on-time period and an off-time period, the on-time period including a first beginning and a first end; andoutputting the drive signal to a switch to close the switch during the on-time period and open the switch during the off-time period to affect a current associated with a secondary winding of the power converter; detecting a demagnetization period associated with the secondary winding based at least in part on the input signal, the demagnetization period including a second beginning and a second end, the second beginning being the same as the first beginning, the second end following the first end;', 'determining a time duration from the first end to the second end, the time duration minus a first predetermined duration being equal to a duration difference; and', 'increasing the on-time period from a first duration to a second duration based at least in part on the ...

Подробнее
05-06-2014 дата публикации

PRESSURE SENSITIVE ADHESIVES PREPARED FROM MALEATED VEGETABLE OILS AND EXPOXIDIZED VEGETABLE OILS

Номер: US20140154506A1
Принадлежит: AVERY DENNISON CORPORATION

A method that includes reacting an epoxidized naturally-occurring oil or fat with a triacid to form a pressure sensitive adhesive or a pressure sensitive adhesive precursor is disclosed. The present invention also includes methods for preparing a triacid and for preparing a pressure sensitive adhesive label or tape. 1. A method comprising:combining one or more epoxidized naturally-occurring oils or fats with at least one triacid to form a reaction mixture, andapplying heat to the reaction mixture to form pressure sensitive adhesive.2. The method of wherein the naturally occurring oil or fat is selected from one or more of soybean oil claim 1 , palm oil claim 1 , olive oil claim 1 , corn oil claim 1 , canola oil claim 1 , linseed oil claim 1 , rapeseed oil claim 1 , castor oil claim 1 , coconut oil claim 1 , cottonseed oil claim 1 , palm kernel oil claim 1 , rice bran oil claim 1 , safflower oil claim 1 , sesame oil claim 1 , sunflower oil claim 1 , tall oil claim 1 , lard claim 1 , tallow claim 1 , fish oil and fats or oils from algae.3. The method of claim 1 , further comprising adding a catalyst to the reaction mixture claim 1 , wherein the catalyst comprises a compound selected from the group consisting of amines claim 1 , imidazoles claim 1 , phenols claim 1 , and metal complexes.4. The method of wherein the catalysts are selected from the group consisting of dimethyl benzyl amine claim 3 , triethylamine claim 3 , triethanolamine claim 3 , 2-ethyl-4-methylimidazole claim 3 , 2 claim 3 ,4 claim 3 ,6-tris(dimethylaminomethyl)phenol claim 3 , and chromium acetylacetonate.5. The method of wherein the reaction mixture comprises a weight ratio of triacids to epoxidized naturally-occurring oils and fats in the range of about 1:1 to about 5.5:1.6. The method of wherein the reaction mixture comprises a weight ratio of triacids to epoxidized naturally-occurring oils and fats in the range of about 3.5:1 to about 5.0:1.7. The method of wherein the reaction mixture comprises ...

Подробнее
05-03-2020 дата публикации

NATURAL GAS HYDRATE-BEARING SEDIMENT INTERGRANULAR MICRO-FORCE TESTING DEVICE AND TESTING METHOD THEREOF

Номер: US20200072734A1
Принадлежит:

The present invention discloses a natural gas hydrate-bearing sediment intergranular micro-force testing device and a testing method thereof. The testing device comprises: a high pressure reactor, a natural gas cylinder, a natural gas buffer tank, a condensate circulation device, a water source and a gas-liquid saturated tank, wherein a gas inlet of the natural gas buffer tank communicates with the natural gas cylinder through a first pipeline, a gas outlet of the natural gas buffer tank communicates with a gas inlet of the high pressure reactor through a second pipeline, a water inlet of the high pressure reactor communicates with a water outlet of the gas-liquid saturated tank through a third pipeline, a water inlet of the gas-liquid saturated tank communicates with the water source through a fourth pipeline, the gas outlet of the natural gas buffer tank communicates with the fourth pipeline through a fifth pipeline. 1. A natural gas hydrate-bearing sediment intergranular micro-force testing device , comprising: a high pressure reactor , a natural gas cylinder , a natural gas buffer tank , a condensate circulation device , a water source and a gas-liquid saturated tank , wherein a gas inlet of the natural gas buffer tank communicates with the natural gas cylinder through a first pipeline , a gas outlet of the natural gas buffer tank communicates with a gas inlet of the high pressure reactor through a second pipeline , a water inlet of the high pressure reactor communicates with a water outlet of the gas-liquid saturated tank through a third pipeline , a water inlet of the gas-liquid saturated tank communicates with the water source through a fourth pipeline , the gas outlet of the natural gas buffer tank communicates with the fourth pipeline through a fifth pipeline , the high pressure reactor is provided with a cantilever testing module and a granule fixing module , the cantilever testing module includes a cantilever , a tension sensor and a nano-displacement ...

Подробнее
15-03-2018 дата публикации

SYSTEMS AND METHODS FOR REGULATING POWER CONVERSION SYSTEMS WITH OUTPUT DETECTION AND SYNCHRONIZED RECTIFYING MECHANISMS

Номер: US20180076720A1
Принадлежит:

System controller and method for regulating a power converter. For example, the system controller includes a first controller terminal and a second controller terminal. The system controller is configured to receive an input signal at the first controller terminal and generate a drive signal at the second controller terminal based at least in part on the input signal to turn on or off a transistor in order to affect a current associated with a secondary winding of the power converter. Additionally, the system controller is further configured to determine whether the input signal remains larger than a first threshold for a first time period that is equal to or longer than a first predetermined duration. 114.-. (canceled)15. A system controller for regulating a power converter , the system controller comprising:a first controller terminal; anda second controller terminal; receive an input signal at the first controller terminal; and', 'generate a drive signal at the second controller terminal based at least in part on the input signal to turn on or off a transistor in order to affect a current associated with a secondary winding of the power converter;, 'wherein the system controller is configured to determine whether the input signal remains larger than a first threshold for a first time period that is equal to or longer than a first predetermined duration; and', 'determine whether the input signal remains larger than a second threshold for a second time period that is equal to or longer than a second predetermined duration, the second threshold being smaller than the first threshold, the second predetermined duration being longer than the first predetermined duration;, 'wherein the system controller is further configured towherein the system controller is further configured to, in response to the input signal not being determined to remain larger than the first threshold for the first time period that is equal to or longer than the first predetermined duration and ...

Подробнее
26-03-2015 дата публикации

Systems and Methods for Over-Temperature Protection and Over-Voltage Protection for Power Conversion Systems

Номер: US20150085540A1

Systems and methods are provided for protecting a power conversion system. A system controller includes a first controller terminal and a second controller terminal. The first controller terminal is configured to provide a drive signal to close and open a switch to affect a first current flowing through a primary winding of a power conversion system. The second controller terminal is configured to receive first input signals during one or more first switching periods and receive second input signals during one or more second switching periods. The system controller is configured to determine whether a temperature associated with the power conversion system is larger than a predetermined temperature threshold, and in response to the temperature associated with the power conversion system being larger than the predetermined temperature threshold, generate the drive signal to cause the switch open and remain open to protect the power conversion system. 1. A system controller for protecting a power conversion system , the system controller comprising:a first controller terminal configured to provide a drive signal to close and open a switch to affect a first current flowing through a primary winding of a power conversion system, the drive signal being associated with one or more switching periods including one or more first switching periods and one or more second switching periods; anda second controller terminal configured to receive one or more first input signals during the one or more first switching periods and receive one or more second input signals during the one or more second switching periods; process information associated with the first input signals;', 'determine whether a temperature associated with the power conversion system is larger than a predetermined temperature threshold based on at least information associated with the first input signals; and', 'in response to the temperature associated with the power conversion system being larger than the ...

Подробнее
25-03-2021 дата публикации

Two Stage Methods for Processing Adhesives and Related Compositions

Номер: US20210087440A1
Принадлежит:

Methods for forming melt processable, actinic radiation polymerizable and crosslinkable adhesives are described. In certain versions, the adhesives or pre-adhesive compositions include two initiators and are polymerized and/or crosslinked by exposure to actinic radiation such as UV light or electron beam radiation. Also described are pre-adhesive compositions including polymerizable monomers, articles including the adhesives, and various methods and systems related to the adhesives and their application. In addition, various apparatuses are described for polymerizing or crosslinking the compositions. 1. An acrylate melt processable pre-adhesive composition comprising:at least one acrylate polymer, the at least one acrylate polymer if formed using actinic radiation polymerization;an actinic radiation initiator for at least partially crosslinking the polymer, the initiator being a photoinitiator moiety covalently bound to the pre-adhesive polymer backbone, the initiator activatable upon exposure to actinic radiation corresponding to the activation wavelength of the initiator.2. The composition of wherein the pre-adhesive composition prior to activation of the initiator exhibits a viscosity within a range of from 1 claim 1 ,000 cps to 80 claim 1 ,000 cps at a temperature within a range of from 110° C. to 180° C.3. The composition of wherein the pre-adhesive composition exhibits a viscosity within a range of from 30 claim 1 ,000 cps to 40 claim 1 ,000 cps at a temperature within a range of from 120° C. to 140° C.4. The composition of wherein the pre-adhesive composition exhibits a viscosity within a range of from 40 claim 1 ,000 cps to 50 claim 1 ,000 cps at a temperature within a range of from 120° C. to 140° C.5. The composition of wherein the pre-adhesive composition exhibits a viscosity within a range of from 1 claim 1 ,000 cps to 15 claim 1 ,000 cps at a temperature within a range of from 110° C. to 130° C.6. The composition of wherein the pre-adhesive composition ...

Подробнее
02-04-2015 дата публикации

SYSTEMS AND METHODS FOR DIMMING CONTROL WITH CAPACITIVE LOADS

Номер: US20150091470A1
Принадлежит:

System and method for dimming control. The system includes a system controller including a first controller terminal and a second controller terminal, a transistor including a first transistor terminal, a second transistor terminal and a third transistor terminal, and a resistor including a first resistor terminal and a second resistor terminal. The system controller is configured to generate a first signal at the first controller terminal based on an input signal and to generate a second signal at the second controller terminal based on the first signal. The first transistor terminal is coupled to the second controller terminal. The first resistor terminal is coupled to the second transistor terminal. The second resistor terminal is coupled to the third transistor terminal. The transistor is configured to receive the second signal at the first transistor terminal and to change between two conditions in response to the second signal. 131.-. (canceled)32. A method for dimming control , the method comprising:receiving an input signal;processing information associated with the input signal;generating a first signal based on at least information associated with the input signal;processing information associated with the first signal;generating a second signal based on at least information associated with the first signal;receiving the second signal at a transistor; andchanging the transistor between a first condition and a second condition based on at least information associated with the second signal; the first signal is at a first logic level during a first period of time and changes between the first logic level and a second logic level during a second period of time, the second period of time including a third period of time and a fourth period of time;', 'the second signal keeps at the second logic level during the first period of time and the third period of time; and', 'the second signal changes from the second logic level to the first logic level after the ...

Подробнее
29-03-2018 дата публикации

SYSTEMS AND METHODS FOR ENHANCING DYNAMIC RESPONSE OF POWER CONVERSION SYSTEMS

Номер: US20180091047A1
Принадлежит:

System and method for regulating a power conversion system. For example, a system controller for regulating a power conversion system includes an amplifier, a variable-resistance component, a capacitor, and a modulation and drive component. The amplifier is configured to receive a reference signal and a feedback signal associated with an output signal of the power conversion system, the amplifier including an amplifier terminal. The variable-resistance component is associated with a first variable resistance value, the variable-resistance component including a first component terminal and a second component terminal, the first component terminal being coupled with the amplifier terminal. The capacitor includes a first capacitor terminal and a second capacitor terminal, the first capacitor terminal being coupled with the second component terminal. The modulation and drive component includes a first terminal and a second terminal, the first terminal being coupled with the amplifier terminal. 1. A system controller for regulating a power conversion system , the system controller comprising:a first amplifier configured to receive a reference signal and a feedback signal associated with an output signal of the power conversion system, the first amplifier including an amplifier terminal;a variable-resistance component associated with a first variable resistance value, the variable-resistance component including a first component terminal and a second component terminal, the first component terminal being coupled with the amplifier terminal;a first capacitor including a first capacitor terminal and a second capacitor terminal, the first capacitor terminal being coupled with the second component terminal; anda modulation and drive component including a first terminal and a second terminal, the first terminal being coupled with the amplifier terminal, the modulation and drive component being configured to output a drive signal at the second terminal to a switch in order to ...

Подробнее
01-04-2021 дата публикации

SWITCH-MODE POWER CONVERTERS USING HALL EFFECT SENSORS AND METHODS THEREOF

Номер: US20210099099A1
Автор: Luo Qiang, YANG Senlin
Принадлежит:

System and method for transmitting and receiving. For example, the system includes a transmitter, one or more wires, and a receiver connected to the transmitter through the one or more wires. The transmitter is configured to generate a first current, and the receiver is configured to receive the first current. The receiver includes a coil, a Hall effect sensor, and a comparator, and the Hall effect sensor includes a first electrode and a second electrode. The coil is electrically isolated from the Hall effect sensor and configured to generate a magnetic field based at least in part on the first current flowing through the coil, and the Hall effect sensor is configured to sense the magnetic field and generate a first voltage at the first electrode and a second voltage at the second electrode. The comparator includes a first input terminal and a second input terminal. 15.-. (canceled)6. A system for a power converter , the system comprising:a first controller system including a first controller and a transmitter;one or more wires; anda second controller system connected to the first controller system through the one or more wires, the second controller system including a second controller and a receiver; [ output a first control signal to a first switch to affect a first current flowing through a primary winding of a power converter; and', 'generate an input signal; and, 'the first controller is configured to, 'the transmitter is configured to receive the input signal and generate a current in response to the input signal;, 'wherein the receiver includes a coil configured to generate a magnetic field based at least in part on the current flowing through the coil, a Hall effect sensor configured to sense the magnetic field, and a comparator configured to receive a first sensor voltage and a second sensor voltage from the Hall effect sensor; and', 'the receiver is configured to receive the current and generate an output signal based at least in part on the current;, ' ...

Подробнее
12-04-2018 дата публикации

RELIABLE NON-VOLATILE MEMORY DEVICE

Номер: US20180102414A1
Принадлежит:

Device and method for forming a device are disclosed. The method includes providing a substrate prepared with a memory cell region having a pair of non-volatile memory cells with a split gate. A split gate includes first and second gates. The first gate is an access gate and the second gate is a storage gate with a control gate over a floating gate. A common second S/D region is disposed adjacent to second gates of the first and second memory cells and first S/D regions are disposed adjacent to the first gates of the first and second memory cells. An erase gate is disposed over the common second S/D region. The erase gate is isolated by the second S/D and second gates by dielectric layers. A silicide block is disposed over the memory cell pair, covering the erase gate at least portions of the second gates of the memory cells. 1. A method for forming a device comprising:providing a substrate prepared with a memory cell region; and forming a first cell gate of the first memory cell,', 'forming a second cell gate of the second memory cell, wherein each of the first and second cell gates comprises a split gate having first and second gates, the first gate is an access gate and the second gate is a storage gate having a control gate over a floating gate,', 'performing an over etch to ensure that a second gate dielectric layer unprotected by the control gate is completely removed,', forming an erase gate dielectric on the second S/D region,', 'forming an erase gate over the erase gate dielectric and between the first and second cell gates, wherein the erase gate is separated from the second gates by second gate sidewall dielectrics disposed on sidewalls of the second gates; and, 'forming a second source/drain (S/D) region between the second gates of the first and second cell gates, the second S/D region is a common second S/D region for the first and second cell gates, the second S/D region serves as a common source line for the first and second memory cells,'}], 'forming ...

Подробнее
12-04-2018 дата публикации

TWO-TERMINAL INTEGRATED CIRCUITS WITH TIME-VARYING VOLTAGE-CURRENT CHARACTERISTICS INCLUDING PHASED-LOCKED POWER SUPPLIES

Номер: US20180103515A1
Принадлежит:

A two-terminal IC chip and method thereof. For example, a two-terminal IC chip includes a first chip terminal and a second chip terminal. A first terminal voltage is a voltage of the first chip terminal, a second terminal voltage is a voltage of the second chip terminal, and a chip voltage is equal to a difference between the first terminal voltage and the second terminal voltage. The chip is configured to allow a chip current to flow into the chip at the first chip terminal and out of the chip at the second chip terminal, or to flow into the chip at the second chip terminal and out of the chip at the first chip terminal. The chip current is larger than or equal to zero in magnitude. The chip is further configured to change a relationship between the chip voltage and the chip current with respect to time. The chip is an integrated circuit, and the chip does not include any additional chip terminal other than the first chip terminal and the second chip terminal. 1. A two-terminal IC chip , the chip comprising:a first chip terminal; anda second chip terminal; a first terminal voltage is a voltage of the first chip terminal;', 'a second terminal voltage is a voltage of the second chip terminal; and', 'a chip voltage is equal to a difference between the first terminal voltage and the second terminal voltage;, 'whereinwherein the chip is configured to allow a chip current to flow into the chip at the first chip terminal and out of the chip at the second chip terminal, or to flow into the chip at the second chip terminal and out of the chip at the first chip terminal, the chip current being larger than or equal to zero in magnitude;wherein the chip is further configured to change a relationship between the chip voltage and the chip current with respect to time; the chip is an integrated circuit; and', 'the chip does not include any additional chip terminal other than the first chip terminal and the second chip terminal., 'wherein2. The two-terminal IC chip of is further ...

Подробнее
03-07-2014 дата публикации

CATHODE FORMED USING AQUEOUS SLURRY

Номер: US20140186694A1
Принадлежит: Johnson Controls Technology Company

In one embodiment, a positive electrode is formed by a process that includes forming a slurry including particles dispersed within a liquid from a electrode formulation and the liquid such that the particles have a particle size distribution Dof 15 microns or less, coating the slurry on a collector; and drying the coated collector to form the positive electrode. The electrode formulation includes an electrode active material, a conductive carbon source, an organic polymeric binder, and a water-soluble polymer. The liquid consists essentially of water or a mixture of water and an alcohol. When the liquid consists essentially of the mixture, the alcohol is present in an amount of less than 10% by weight, based on the weight of the slurry. When the liquid consists essentially of water, the slurry is formed from the electrode formulation, the liquid, and an arene-capped polyoxoethylene surfactant. 1. A method of making a positive electrode , comprising:coating a slurry on a collector, the slurry being formed from an electrode formulation and a liquid such that the slurry comprises particles dispersed within the liquid; and 'wherein the electrode formulation comprises at least one electrode active material, a conductive carbon source, an organic polymeric binder, and a water-soluble polymer, and wherein the liquid consists essentially of a mixture of water and an alcohol, wherein the alcohol is present in an amount of less than 10% by weight, based on the weight of the slurry.', 'drying the coating on the collector to form the positive electrode;'}2. The method of claim 1 , comprising forming the slurry without the use of a surfactant.3. The method of claim 1 , wherein the electrode active material comprises a mixed metal composition comprising lithium claim 1 , nickel claim 1 , manganese claim 1 , and cobalt ions.4. The method of claim 1 , wherein the alcohol has between 1 and 4 carbons.5. The method of claim 1 , wherein the alcohol is 1-propanol.6. The method of claim ...

Подробнее
25-08-2022 дата публикации

MOBILE PHONE-BASED MINIATURE MICROSCOPIC IMAGE ACQUISITION DEVICE AND IMAGE STITCHING AND RECOGNITION METHODS

Номер: US20220269060A1

A mobile phone-based miniature microscopic image acquisition device, and image stitching and recognition methods are provided. The acquisition device comprises a support, wherein a mobile phone fixing table is provided on the support. A microscope head is provided below a camera of a mobile phone. A slide holder is provided below the microscope head, and an lighting source is provided below the slide holder. A scanning movement is performed between the slide holder and the microscope head along X and Y axes, so that images of a slide are acquired into the mobile phone. The slide sample images acquired into the mobile phone can be stitched and recognized, and can be uploaded to the cloud to be processed by cloud AI, thereby significantly improving the accuracy and efficiency of cell recognition, greatly reducing the medical cost, and ensuring more remote medical institutions can apply such technology for diagnosis. 14. A mobile phone-based miniature microscopic image acquisition device , comprising a support () , wherein ,{'b': 1', '4', '11, 'a mobile phone fixing table () is provided on the support () for fixing a mobile phone ();'}{'b': 3', '11', '5', '3', '8', '5, 'a microscope head () is provided below a camera of the mobile phone (), a slide holder () is provided below the microscope head (), and a lighting source () is provided below the slide holder (); and'}{'b': 5', '3', '7', '11, 'a scanning movement is performed between the slide holder () and the microscope head () along X axis and Y axis, so that images of a slide () are collected into the mobile phone (),'}{'b': 3', '32', '1', '32', '1', '32', '11, 'the microscope head () comprises a cantilever rod () mounted on the mobile phone fixing table (), one end of the cantilever rod () is fixedly connected to the mobile phone fixing table (), and a microscope lens is provided on the other end of the cantilever rod (); and the microphone lens is located below the camera of the mobile phone (),'}{'b': 1', '108', ...

Подробнее
03-05-2018 дата публикации

TWO-TERMINAL INTEGRATED CIRCUITS WITH TIME-VARYING VOLTAGE-CURRENT CHARACTERISTICS INCLUDING PHASED-LOCKED POWER SUPPLIES

Номер: US20180124885A1
Принадлежит:

A two-terminal IC chip and method thereof. For example, a two-terminal IC chip includes a first chip terminal, a second chip terminal, a first switch configured to receive a control signal, a first capacitor coupled to the first switch, a second switch configured to receive the control signal, a second capacitor coupled to the second switch, a third switch configured to receive the control signal, and a third capacitor coupled to the third switch. A first terminal voltage is a voltage of the first chip terminal, a second terminal voltage is a voltage of the second chip terminal, and a chip voltage is equal to a difference between the first terminal voltage and the second terminal voltage. 1. A two-terminal IC chip , the chip comprising:a first chip terminal;a second chip terminal;a first switch configured to receive a control signal;a first capacitor coupled to the first switch;a second switch configured to receive the control signal;a second capacitor coupled to the second switch;a third switch configured to receive the control signal;a third capacitor coupled to the third switch; a first terminal voltage is a voltage of the first chip terminal;', 'a second terminal voltage is a voltage of the second chip terminal; and', 'a chip voltage is equal to a difference between the first terminal voltage and the second terminal voltage;, 'whereinwherein the chip is configured to allow a chip current to flow into the chip at the first chip terminal and out of the chip at the second chip terminal, or to flow into the chip at the second chip terminal and out of the chip at the first chip terminal, the chip current being larger than or equal to zero in magnitude; closed during a first time duration in response to the control signal; and', 'open during a second time duration in response to the control signal;, 'wherein the first switch is further configured to be in response to the first switch being closed, receive a first supply voltage through the first switch during the ...

Подробнее
04-05-2017 дата публикации

Systems and methods for regulating power conversion systems with output detection and synchronized rectifying mechanisms

Номер: US20170126138A1
Принадлежит: On Bright Electronics Shanghai Co Ltd

System and method for regulating a power conversion system. A system controller for regulating a power conversion system includes a first controller terminal and a second controller terminal. Additionally, the system controller is configured to receive an input signal at the first controller terminal, and generate a drive signal at the second controller terminal based at least in part on the input signal to turn on or off a transistor in order to affect a current associated with a secondary winding of the power conversion system. Moreover, the system controller is further configured to determine whether the input signal is larger than a first threshold at a first time, in response to the input signal being determined to be larger than the first threshold at the first time, determine whether the input signal is smaller than a second threshold at a second time.

Подробнее
07-08-2014 дата публикации

SYSTEMS AND METHODS FOR REGULATING POWER CONVERSION SYSTEMS WITH OUTPUT DETECTION AND SYNCHRONIZED RECTIFYING MECHANISMS

Номер: US20140218976A1

System and method for regulating a power conversion system. An example system controller includes: a first controller terminal and a second controller terminal. The system controller is configured to: receive an input signal at the first controller terminal and generate a first drive signal at the second controller terminal based on at least information associated with the input signal to turn on or off a transistor to affect a current associated with a secondary winding of the power conversion system. The system controller is further configured to: in response to the input signal changing from a first value larger than a first threshold to a second value smaller than the first threshold, change the first drive signal from a first logic level to a second logic level to turn on the transistor. 1. A system controller for regulating a power conversion system , the system controller comprising:a first controller terminal; anda second controller terminal; receive an input signal at the first controller terminal; and', 'generate a first drive signal at the second controller terminal based on at least information associated with the input signal to turn on or off a transistor to affect a current associated with a secondary winding of the power conversion system;, 'wherein the system controller is configured to in response to the input signal changing from a first value larger than a first threshold to a second value smaller than the first threshold, change the first drive signal from a first logic level to a second logic level to turn on the transistor;', 'in response to the input signal changing from the second value to a second threshold, change the first drive signal to keep the input signal approximately at the second threshold; and', 'in response to the input signal becoming larger than a third threshold, generate the first drive signal at the first logic level to turn off the transistor., 'wherein the system controller is further configured to2. The system controller ...

Подробнее
15-09-2022 дата публикации

MINIATURE MICROSCOPIC CELL IMAGE ACQUISITION DEVICE AND IMAGE RECOGNITION METHOD

Номер: US20220292854A1

A miniature microscopic cell image acquisition device and an image recognition method are provided. The miniature microscopic cell image acquisition device comprises a support, wherein a movable module platform is provided on the support, and a camera module is provided on the module platform. A microscope head that is relatively fixed is provided below a camera of the camera module, a slide holder is provided below the microscope head, and a lighting source is provided below the slide holder. A scanning drive module is provided between the slide holder and the camera module to perform a scanning movement along X and Y axes, so that the slide holder and the camera module make a scanning movement along the X and Y axes, and images of a slide are acquired by the camera module in a scanning manner. 14. A miniature microscopic cell image acquisition device , comprising a support () , wherein{'b': 2', '4', '1', '2, 'a movable module platform () is provided on the support (), and a camera module () is provided on the module platform ();'}{'b': 3', '111', '1', '5', '3', '8', '5, 'a microscope head () that is relatively fixed is provided below a camera () of the camera module (), a slide holder () is provided below the microscope head (), and a lighting source () is provided below the slide holder (); and'}{'b': 5', '1', '5', '1', '7', '1, 'a scanning drive module is provided between the slide holder () and the camera module () to perform a scanning movement along X axis and Y axis, so that the slide holder () and the camera module () make a scanning movement along the X axis and Y axis, and images of a slide () are collected by the camera module () in a scanning manner.'}2. The miniature microscopic cell image acquisition device according to claim 1 , wherein claim 1 ,{'b': 3', '32', '2', '32', '2, 'the microscope head () comprises a cantilever rod () mounted on the module platform (), one end of the cantilever rod () is fixedly connected to the module platform (), and a ...

Подробнее
30-05-2019 дата публикации

SWITCHING CONTROLLERS AND METHODS FOR LOADS

Номер: US20190165745A1
Автор: Fang Lieyi, Li Miao, Luo Qiang
Принадлежит:

System controller and method for providing at least an output voltage. For example, the system controller includes a first controller terminal configured to receive an input voltage. The input voltage is associated with an input-voltage magnitude. Additionally, the system controller includes a second controller terminal configured to receive a control voltage, and a third controller terminal configured to output an output voltage to a load. Moreover, the system controller includes a supply voltage generator configured to receive the input voltage from the first controller terminal and generate a supply voltage. The supply voltage is associated with a supply voltage magnitude. Also, the system controller includes a ramp voltage generator configured to receive the supply voltage and generate a ramp voltage. 18.-. (canceled)9. A system controller for providing at least an output voltage , the system controller comprising:a first controller terminal configured to receive an input voltage;a second controller terminal configured to receive a control voltage;a third controller terminal configured to output an output voltage;a fourth controller terminal biased to a predetermined voltage;a transistor including a gate terminal, a drain terminal and a source terminal, the drain terminal being connected to the first controller terminal, the source terminal being connected to the third controller terminal;a first resistor including a first resistor terminal and a second resistor terminal, the first resistor terminal being connected to the third controller terminal;a second resistor including a third resistor terminal and a fourth resistor terminal, the third resistor terminal being connected to the second resistor terminal, the fourth resistor terminal being connected to the fourth controller terminal;a third resistor including a fifth resistor terminal and a sixth resistor terminal, the fifth resistor terminal being configured to receive a first voltage related to the output ...

Подробнее
27-07-2017 дата публикации

SYSTEMS AND METHODS FOR HIGH PRECISION AND/OR LOW LOSS REGULATION OF OUTPUT CURRENTS OF POWER CONVERSION SYSTEMS

Номер: US20170214327A1
Принадлежит:

Systems and methods are provided for signal processing. An example error amplifier for processing a reference signal and an input signal associated with a current of a power conversion system includes a first operational amplifier, a second operational amplifier, a first transistor, a second transistor, a current mirror component, a switch, a first resistor and a second resistor. The first operational amplifier includes a first input terminal, a second input terminal and a first output terminal, the first input terminal being configured to receive a reference signal. The first transistor includes a first transistor terminal, a second transistor terminal and a third transistor terminal, the first transistor terminal being configured to receive a first amplified signal from the first output terminal, the third transistor terminal being coupled to the second input terminal. 1. An error amplifier for processing a reference signal and an input signal associated with a current of a power conversion system , the error amplifier comprising:a first operational amplifier including a first input terminal, a second input terminal and a first output terminal, the first input terminal being configured to receive a reference signal;a first transistor including a first transistor terminal, a second transistor terminal and a third transistor terminal, the first transistor terminal being configured to receive a first amplified signal from the first output terminal, the third transistor terminal being coupled to the second input terminal;a second operational amplifier including a third input terminal, a fourth input terminal and a second output terminal, the third input terminal being configured to receive an input signal associated with a current flowing through a primary winding of a power conversion system;a second transistor including a fourth transistor terminal, a fifth transistor terminal and a sixth transistor terminal, the fourth transistor terminal being configured to ...

Подробнее
27-07-2017 дата публикации

SYSTEMS AND METHODS FOR HIGH PRECISION AND/OR LOW LOSS REGULATION OF OUTPUT CURRENTS OF POWER CONVERSION SYSTEMS

Номер: US20170214328A1
Принадлежит:

Systems and methods are provided for signal processing. An example error amplifier for processing a reference signal and an input signal associated with a current of a power conversion system includes a first operational amplifier, a second operational amplifier, a first transistor, a second transistor, a current mirror component, a switch, a first resistor and a second resistor. The first operational amplifier includes a first input terminal, a second input terminal and a first output terminal, the first input terminal being configured to receive a reference signal. The first transistor includes a first transistor terminal, a second transistor terminal and a third transistor terminal, the first transistor terminal being configured to receive a first amplified signal from the first output terminal, the third transistor terminal being coupled to the second input terminal. 115.-. (canceled)16. A system controller for regulating a power conversion system , the system controller comprising:a first controller terminal configured to receive a first voltage associated with a first current, the first current being related to an input voltage of a power conversion system;a compensation component coupled to the first controller terminal and configured to, if the first voltage satisfies one or more first conditions, generate a compensation current based on at least information associated with the first current;a second controller terminal coupled to the compensation component and configured to provide a compensation voltage based on at least information associated with the compensation current, the compensation voltage being equal in magnitude to the compensation current multiplied by a compensation resistance, the compensation resistance being associated with a compensation resistor;a current sensing component configured to receive a second voltage and generate an output signal, the second voltage being equal to a sum of a third voltage and the compensation voltage in ...

Подробнее
11-08-2016 дата публикации

Systems and methods for application controlled network selection between narrowband and broadband wireless networks

Номер: US20160234711A1
Принадлежит: Motorola Solutions Inc

A method, apparatus, and system for application controlled network selection between a broadband network and a narrowband network include operating an application with an end device with a narrowband connection to the end device; acquiring a source broadband connection comprising a source broadband network address; negotiating a peer-to-peer broadband connection with the end device utilizing the narrowband connection to communicate the source broadband network address; utilizing the peer-to-peer broadband connection for data associated with the application responsive to successful negotiating; and managing the peer-to-peer broadband connection using the narrowband connection as a control channel therefor. The narrowband connection can include Digital Mobile Radio (DMR), Land Mobile Radio (LMR), Project 25 (P25), Terrestrial Trunked Radio (TETRA), or the like.

Подробнее
24-08-2017 дата публикации

Two Stage Methods for Processing Adhesives and Related Compositions

Номер: US20170240783A1
Принадлежит:

Methods for forming melt processable, actinic radiation polymerizable and crosslinkable adhesives are described. In certain versions, the adhesives or pre-adhesive compositions include two initiators and are polymerized and/or crosslinked by exposure to actinic radiation such as UV light or electron beam radiation. Also described are pre-adhesive compositions including polymerizable monomers, articles including the adhesives, and various methods and systems related to the adhesives and their application. In addition, various apparatuses are described for polymerizing or crosslinking the compositions. 1. A method of forming an adhesive , the method comprising:providing a composition including at least one monomer having one or more ethylenically unsaturated bonds, a first actinic radiation initiator, and a second actinic radiation initiator, wherein the second initiator is substantially non-photoactive at activation wavelength(s) of the first initiator;at least partially polymerizing the composition by exposing the composition to radiation having wavelengths corresponding to the activation wavelength(s) of the first initiator;at least partially crosslinking the composition to thereby form the adhesive by exposing the composition to radiation having wavelengths corresponding to the activation wavelength(s) of the second initiator;wherein the composition is free of solvents.2. The method of whereby the at least partially polymerizing the composition is performed by irradiating the composition with UV radiation.3. The method of whereby the at least partially polymerizing the composition is performed by irradiating the composition with electron beam radiation.4. The method of whereby the at least partially crosslinking the composition is performed by irradiating the composition with UV radiation5. The method of whereby the at least partially crosslinking the composition is performed by irradiating the composition with electron beam radiation.6. The method of wherein the ...

Подробнее
01-09-2016 дата публикации

COMPOSTIBLE FILMS AND COMPOSTIBLE LABELS

Номер: US20160253927A1
Принадлежит:

Mono-layer and multi-layer compostable films are provided. The multi-layered compostable films may generally include a core layer fabricated from one or more compostable resins. Multi-layer compostable films may include at least one skin layer fabricated from the same or different compostable resin used to fabricate the core layer. Also provided are labels formed from such compostable films in combination with aqueous dispersions of bio-based pressure sensitive adhesives. These labels have many possible applications, such as labels for a variety of fruits. 1. A label , comprising:a film having a facestock layer including a compostable material and an anti-blocking agent, the facestock layer including at least a first surface; andan adhesive layer comprising an adhesive material positioned at least one of proximate or adjacent to at least a portion of the first surface of the facestock layer.2. The label according to claim 1 , wherein the anti-blocking agent includes a mineral anti-blocking agent comprising silica or diatomaceous earth or an organic anti-blocking agent including polymethylmethacrylate claim 1 , wherein the anti-blocking agent includes from about 0.01 to about 10% by weight of the facestock layer.3. The label according to claim 1 , wherein the compostable material includes polylactide (PLA).4. The label according to claim 1 , wherein the compostable material includes an aliphatic-aromatic copolyester.5. The label according to claim 1 , wherein the compostable material includes a blend of PLA and an aliphatic-aromatic copolyester.6. The label according to claim 1 , wherein the compostable material includes a polybutylene adipate co-terephthalate (PBAT).7. The label according to claim 1 , wherein the compostable material includes a blend of PLA and a PBAT.8. The label according to claim 1 , wherein the adhesive material is an aqueous-based dispersion having a discontinuous phase including a plurality of bio-based prepolymer particulates dispersed ...

Подробнее
15-08-2019 дата публикации

SYSTEMS AND METHODS FOR ADJUSTING ONE OR MORE THRESHOLDS IN POWER CONVERTERS

Номер: US20190252968A1
Принадлежит:

System controller and method for a power converter. For example, the system controller includes a first current controller configured to receive a first input signal and generate a first output signal based at least in part on the first input signal, a second current controller configured to receive a compensation signal and a second input signal and generate a second output signal based at least in part on the second input signal, and a drive signal generator configured to receive the first output signal and the second output signal, generate a first drive signal based at least in part on the first output signal and the second output signal, and generate a second drive signal based at least in part on the first output signal and the second output signal. 1. A system controller for a power converter , the system controller comprising:a first current controller configured to receive a first input signal and generate a first output signal based at least in part on the first input signal;a second current controller configured to receive a compensation signal and a second input signal and generate a second output signal based at least in part on the second input signal; anda drive signal generator configured to receive the first output signal and the second output signal, generate a first drive signal based at least in part on the first output signal and the second output signal, and generate a second drive signal based at least in part on the first output signal and the second output signal; the first current controller is configured to, in response to the first input signal becoming equal to or larger than a first threshold, change the first output signal from a first logic level to a second logic level; and', 'the second current controller is configured to, in response to the second input signal becoming equal to or smaller than a second threshold, change the second output signal from the first logic level to the second logic level;, 'wherein in response to the first ...

Подробнее
15-08-2019 дата публикации

SYSTEMS AND METHODS FOR ADJUSTING ONE OR MORE THRESHOLDS IN POWER CONVERTERS

Номер: US20190252969A1
Принадлежит:

System controller and method for a power converter. For example, the system controller includes a first current controller configured to receive a first input signal and generate a first output signal based at least in part on the first input signal, a second current controller configured to receive a compensation signal and a second input signal and generate a second output signal based at least in part on the second input signal, and a drive signal generator configured to receive the first output signal and the second output signal, generate a first drive signal based at least in part on the first output signal and the second output signal, and generate a second drive signal based at least in part on the first output signal and the second output signal. 114.-. (canceled)15. A system controller for a power converter , the system controller comprising:a first current controller configured to receive a first input signal and generate a first output signal based at least in part on the first input signal;a second current controller configured to receive a second input signal, generate a second output signal based at least in part on the second input signal, and generate a third output signal;an output signal generator configured to receive a third input signal, the third output signal and the second output signal, and generate a fourth output signal based at least in part on the third input signal, the third output signal and the second output signal; anda drive signal generator configured to receive the first output signal and the fourth output signal, generate a first drive signal based at least in part on the first output signal and the fourth output signal, and generate a second drive signal based at least in part on the first output signal and the fourth output signal; the first current controller is configured to, in response to the first input signal becoming equal to or larger than a first threshold, change the first output signal from a first logic level to a ...

Подробнее
22-09-2016 дата публикации

ELECTRONIC SNORE-CEASING DEVICE AND METHOD FOR SNORE-CEASING

Номер: US20160270720A1
Автор: Luo Qiang
Принадлежит:

An electronic snore-ceasing device comprising an electroic snore-ceasing device body () and a working module (), the electronic snore-ceasing device body () comprises an ear-hook () and an ear plug () jointed together with the ear-hook (), the working module () is located inside the ear-hook () and the ear plug (); the working module () comprises a snore collecting circuit (), a control circuit () taking a MCU as a core thereof, a warning circuit (), and a power supply circuit (); when the control circuit () determines that a received sound signal and vibration signal reach their respective threshold values, the control circuit () transmitts a control signal to the warning circuit () located inside the ear plug (), thereby activating the warning circuit () to generate a sound stimulation signal, a vibration stimulation signal or an electrode stimulation signal that does not wake the user up in sleep to suppress snores. A low power consumption electric circuit is adopted in the electronic snore-ceasing device for detecting snores of the patient in real-time, snores of the patient and vibrations caused by snores of the patient can be collected accurately, meanwhile, stimulation effects can be monitored in real-time, thereby achieving an effect of snore-ceasing, so that the snore patient can get a high sleep quality. 12. An electronic snore-ceasing device , comprising a snore-ceasing device body and a working module () received therein , wherein:{'b': 1', '11', '12', '11', '12', '2', '11', '12, 'the body () comprises an ear-hook () that is suitable to be hung on an auricle of a user, and an ear plug () that is suitable to be placed inside an earhole of the user, the ear-hook () and the ear plug () are jointed together; the working module () is placed inside an inner cavity formed by the ear-hook () and the ear plug ();'}{'b': 2', '21', '22', '23', '24', '21', '23', '22', '24', '21', '22', '23', '21', '22', '22', '22', '23', '12', '23, 'the working module () comprises a ...

Подробнее
22-08-2019 дата публикации

Pressure Sensitive Adhesives Including (Meth)Acrylates and Rubber

Номер: US20190256743A1
Принадлежит: Individual

Pressure sensitive adhesives are described which comprise a composition of (i) one or more rubber components, (ii) one or more (meth)acrylate monomer(s), and (iii) free radical initiators. In some aspects, the rubber component is selected from the group consisting of ethylene propylene diene monomer (EPDM) rubber, polyisobutylene rubber, farnesene compound, and combinations thereof. Also described are articles including the pressure sensitive adhesives and methods of forming the pressure sensitive adhesives.

Подробнее
22-08-2019 дата публикации

SYSTEMS AND METHODS FOR VOLTAGE CONTROL AND CURRENT CONTROL OF POWER CONVERSION SYSTEMS WITH MULTIPLE OPERATION MODES

Номер: US20190260294A1
Принадлежит:

System and method for regulating a power conversion system. A system controller for regulating a power conversion system includes an operation-mode-selection component and a driving component. The operation-mode-selection component is configured to receive a first signal related to an output load of the power conversion system and a second signal related to an input signal received by the power conversion system and output a mode-selection signal based on at least information associated with the first signal and the second signal. The driving component is configured to receive the mode-selection signal and generate a drive signal based on at least information associated with the mode-selection signal, the driving signal corresponding to a switching frequency. 1. A system controller for regulating a power conversion system , the system controller comprising:an operation-mode-selection component configured to receive a first signal related to an output load of the power conversion system and a second signal related to an input signal received by the power conversion system and output a mode-selection signal based on at least information associated with the first signal and the second signal; anda driving component configured to receive the mode-selection signal and generate a drive signal based on at least information associated with the mode-selection signal, the driving signal corresponding to a switching frequency; if the output load is determined to be larger than a first load threshold in magnitude and the input signal is determined to be larger than an input threshold, generate the mode-selection signal corresponding to a quasi-resonant mode if the switching frequency is determined to be smaller than a first frequency threshold and larger than a second frequency threshold; and', 'if the output load is determined to be larger than the first load threshold in magnitude and the input signal is determined to be smaller than the input threshold, generate the mode- ...

Подробнее
03-09-2020 дата публикации

SYSTEMS AND METHODS FOR REGULATING POWER CONVERSION SYSTEMS WITH OUTPUT DETECTION AND SYNCHRONIZED RECTIFYING MECHANISMS

Номер: US20200280259A1
Принадлежит:

System controller and method for regulating a power converter. For example, the system controller includes a first controller terminal and a second controller terminal. The system controller is configured to receive an input signal at the first controller terminal and generate a drive signal at the second controller terminal based at least in part on the input signal to turn on or off a transistor in order to affect a current associated with a secondary winding of the power converter. Additionally, the system controller is further configured to determine whether the input signal remains larger than a first threshold for a first time period that is equal to or longer than a first predetermined duration. 17.-. (canceled)8. A system controller for regulating a power converter , the system controller comprising:a first controller terminal; anda second controller terminal; receive an input signal at the first controller terminal; and', 'generate a drive signal at the second controller terminal based at least in part on the input signal to turn on or off a transistor in order to affect a current associated with a secondary winding of the power converter;, 'wherein the system controller is configured to determine whether the input signal remains smaller than or equal to a first threshold and larger than a second threshold for a first time period that is equal to or longer than a first predetermined duration, the second threshold being smaller than the first threshold; and', 'in response to the input signal not being determined to remain smaller than or equal to the first threshold and larger than the second threshold for the first time period that is equal to or longer than the first predetermined duration, operate with a first mechanism;, 'wherein the system controller is further configured to determine whether the input signal remains smaller than a third threshold for a second time period that is equal to or longer than a second predetermined duration; and', 'in ...

Подробнее
03-09-2020 дата публикации

SYSTEMS AND METHODS FOR REGULATING POWER CONVERSION SYSTEMS WITH OUTPUT DETECTION AND SYNCHRONIZED RECTIFYING MECHANISMS

Номер: US20200280260A1
Принадлежит:

System controller and method for regulating a power converter. For example, the system controller includes a first controller terminal and a second controller terminal. The system controller is configured to receive an input signal at the first controller terminal and generate a drive signal at the second controller terminal based at least in part on the input signal to turn on or off a transistor in order to affect a current associated with a secondary winding of the power converter. Additionally, the system controller is further configured to determine whether the input signal remains larger than a first threshold for a first time period that is equal to or longer than a first predetermined duration.

Подробнее
11-10-2018 дата публикации

SYSTEMS AND METHODS FOR TEMPERATURE CONTROL IN LIGHT-EMITTING-DIODE LIGHTING SYSTEMS

Номер: US20180295693A1
Принадлежит:

Systems and methods are provided for regulating one or more currents. An example system controller includes: a thermal detector configured to detect a temperature associated with the system controller and generate a thermal detection signal based at least in part on the detected temperature; and a modulation-and-driver component configured to receive the thermal detection signal and generate a drive signal based at least in part on the thermal detection signal to close or open a switch to affect a drive current associated with one or more light emitting diodes. The modulation-and-driver component is further configured to, in response to the detected temperature increasing from a first temperature threshold but remaining smaller than a second temperature threshold, generate the drive signal to keep the drive current at a first current magnitude, the second temperature threshold being higher than the first temperature threshold. 1. A system controller for regulating one or more currents , the system controller comprising:a thermal detector configured to detect a temperature associated with the system controller and generate a thermal detection signal based at least in part on the detected temperature; anda modulation-and-driver component configured to receive the thermal detection signal and generate a drive signal based at least in part on the thermal detection signal to close or open a switch to affect a drive current associated with one or more light emitting diodes; in response to the detected temperature increasing from a first temperature threshold but remaining smaller than a second temperature threshold, generate the drive signal to keep the drive current at a first current magnitude, the second temperature threshold being higher than the first temperature threshold;', 'in response to the detected temperature increasing to become equal to or larger than the second temperature threshold, change the drive signal to reduce the drive current from the first current ...

Подробнее
26-09-2019 дата публикации

A METHOD FOR PREPARING CELLULOSE FIBER

Номер: US20190292683A1
Принадлежит:

The present disclosure discloses a method for preparing cellulose fiber. The method includes the following steps: 1) mixing cellulose pulp with NMMO aqueous solution of a mass concentration of 60%-85%, preferably 70% to 76%, to obtain a uniform mixture; 2) subjecting the obtained uniform mixture to dewatering for swelling, dissolution, and deaerating to obtain a cellulose spinning stock solution; 3) the cellulose spinning stock solution entering into a spinning machine after being filtered and heat exchange, and entering into a coagulation system after carrying out extruding by a spinneret-pack and cooling by air, and then coagulating in a NMMO coagulating bath of a mass concentration of 50% to 72% to obtain nascent fiber; and 4) subjecting the nascent fiber to rinsing to obtain a fiber filament bundle, and then, performing subsequent-section treatment to obtain cellulose fiber. 1. A method for preparing cellulose fiber , wherein the method comprises the following steps:1) mixing cellulose pulp with a NMMO aqueous solution of a mass concentration of 60%-85%, to obtain a uniform mixture;2) subjecting the obtained uniform mixture to dewatering for swelling and dissolution, and deaerating to obtain a cellulose spinning stock solution;3) the cellulose spinning stock solution entering into a spinning machine after being filtered and heat exchange, and entering into a coagulating system after carrying out extruding by spinneret-pack and cooling by air, and then coagulating in a NMMO coagulating bath of a mass concentration of 50% to 72% to obtain nascent fiber; and4) subjecting the nascent fiber to rinsing to obtain a fiber filament bundle and performing subsequent-section treatment to obtain cellulose fiber.2. The method according to claim 1 , wherein along with the proceeding of the method claim 1 , a low-concentration NMMO aqueous solution obtained after rinsing is continuously added into the coagulating system in step 3) claim 1 ,a high-concentration NMMO aqueous ...

Подробнее
03-11-2016 дата публикации

Acrylic Emulsion Adhesives

Номер: US20160319169A1
Принадлежит:

Methods of forming acrylate polymers using emulsion polymerization techniques are described. The resulting acrylate polymers exhibit characteristics enabling their use in adhesives and replacing acrylic polymers formed by solvent-based polymerization methods. Various polymers and adhesives utilizing such polymers are also described. 1. A polymer emulsion composition comprising:an acrylic block copolymer including a surfactant copolymerized with the acrylic block copolymer, the surfactant being chemically bound to the polymer chain;the acrylic copolymer including a first segment of controlled molecular weight and position and a second segment of controlled molecular weight and position;the first segment including a monomer having a functional group selected from the group consisting of a self reactive functional group, a reactive functional group, and combinations thereof.2. The composition of wherein the second segment is non-reactive with the functional group of the first segment.3. The composition of wherein the second segment does not contain a crosslinkable functional group.4. The composition of wherein the second segment includes a monomer having a reactive functional group.5. The composition of wherein the functional groups of the second segment are capable of undergoing crosslinking reactions while remaining reactive with each other.6. The composition of wherein the second segment is non-reactive with the functional group of the first segment.7. The composition of wherein the reactive functional groups are spaced apart along the length of the polymer chain.8. The composition of wherein the functional groups of the first segment are capable of undergoing crosslinking reactions while remaining reactive with each other.9. The composition of wherein the first segment and the second segment are positioned adjacent to the polymer chain ends.10. The composition of comprising two first segments and one second segment.11. The composition of wherein the first segments ...

Подробнее
23-11-2017 дата публикации

TWO-TERMINAL INTEGRATED CIRCUITS WITH TIME-VARYING VOLTAGE-CURRENT CHARACTERISTICS INCLUDING PHASED-LOCKED POWER SUPPLIES

Номер: US20170339758A1
Принадлежит:

A two-terminal IC chip and method thereof. For example, a two-terminal IC chip includes a first chip terminal, a second chip terminal, a first switch configured to receive a control signal, a first capacitor coupled to the first switch, a second switch configured to receive the control signal, a second capacitor coupled to the second switch, a third switch configured to receive the control signal, and a third capacitor coupled to the third switch. A first terminal voltage is a voltage of the first chip terminal, a second terminal voltage is a voltage of the second chip terminal, and a chip voltage is equal to a difference between the first terminal voltage and the second terminal voltage. 1. A two-terminal IC chip , the chip comprising:a first chip terminal;a second chip terminal;a first switch configured to receive a control signal;a first capacitor coupled to the first switch;a second switch configured to receive the control signal;a second capacitor coupled to the second switch;a third switch configured to receive the control signal;a third capacitor coupled to the third switch; a first terminal voltage is a voltage of the first chip terminal;', 'a second terminal voltage is a voltage of the second chip terminal; and', 'a chip voltage is equal to a difference between the first terminal voltage and the second terminal voltage;, 'whereinwherein the chip is configured to allow a chip current to flow into the chip at the first chip terminal and out of the chip at the second chip terminal, or to flow into the chip at the second chip terminal and out of the chip at the first chip terminal, the chip current being larger than or equal to zero in magnitude; closed during a first time duration in response to the control signal; and', 'open during a second time duration in response to the control signal;, 'wherein the first switch is further configured to be in response to the first switch being closed, receive a first supply voltage through the first switch during the ...

Подробнее
24-10-2019 дата публикации

SYSTEMS AND METHODS FOR TEMPERATURE CONTROL IN LIGHT-EMITTING-DIODE LIGHTING SYSTEMS

Номер: US20190327812A1
Принадлежит:

Systems and methods are provided for regulating one or more currents. An example system controller includes: a thermal detector configured to detect a temperature associated with the system controller and generate a thermal detection signal based at least in part on the detected temperature; and a modulation-and-driver component configured to receive the thermal detection signal and generate a drive signal based at least in part on the thermal detection signal to close or open a switch to affect a drive current associated with one or more light emitting diodes. The modulation-and-driver component is further configured to, in response to the detected temperature increasing from a first temperature threshold but remaining smaller than a second temperature threshold, generate the drive signal to keep the drive current at a first current magnitude, the second temperature threshold being higher than the first temperature threshold. 140.-. (canceled)41. A system controller for regulating one or more currents , the system controller comprising:a thermal detector configured to detect a temperature associated with the system controller and generate a thermal detection signal based at least in part on the detected temperature; anda drive signal generator configured to receive the thermal detection signal and generate a drive signal based at least in part on the thermal detection signal to close or open a switch to affect a drive current associated with one or more light emitting diodes; in response to the detected temperature increasing from a first temperature threshold but remaining smaller than a second temperature threshold, generate the drive signal to keep the drive current at a first current magnitude, the second temperature threshold being higher than the first temperature threshold; and', 'in response to the detected temperature increasing to become equal to or larger than the second temperature threshold, change the drive signal to reduce the drive current from the ...

Подробнее
31-10-2019 дата публикации

LIGAND FOR ORPHAN NUCLEAR RECEPTOR NUR77 AND USES THEREOF

Номер: US20190330261A1
Принадлежит: XIAMEN UNIVERSITY

Provided are use of a compound of Formula I as a ligand of orphan nulear receptor Nur77, and in the prevention or treatment of a orphan nulear receptor Nur77 associated disease,

Подробнее
07-12-2017 дата публикации

METHOD AND APPARATUS FOR CONTROLLING USER INTERFACE ELEMENTS ON A TOUCH SCREEN

Номер: US20170351421A1
Принадлежит:

A method and apparatus for controlling user interface elements is provided herein. During operation, a pressure or velocity of a touch or swipe is measured. Based on the pressure and/or velocity of the touch or swipe, the input will be applied to a particular user interface element from a plurality of user interface elements. 1. A method for controlling user interface elements on a touch screen , the method comprising the steps of:determining that a user had made contact to the touch screen by swiping the touch screen;determining a velocity and/or pressure of the swipe;identifying a user interface element from a plurality of user interface elements based on the velocity and/or pressure of the swipe; andcontrolling the identified user interface element.2. The method of wherein the step of determining that the user has made contact to the touch screen by swiping the touch screen comprises the step of determining that the user has made contact to the touch screen by moving a finger across the touch screen.3. The method of wherein the step of identifying the user interface element comprises the step of identifying a window from a plurality of open windows.4. The method of wherein the step of detecting that the user has made contact to the touch screen comprises the step of detecting that the user has made contact to the touch screen outside the identified window.5. The method of wherein the step of controlling the identified window comprises the step of scrolling the identified window.6. An apparatus comprising:a touch screen;a contact module determining that a user had made contact to the touch screen by swiping the touch screen, determining a velocity and/or pressure of the swipe, identifying a user interface element from a plurality of user interface elements based on the velocity and/or pressure of the swipe; anda processor controlling the identified user interface element.7. The apparatus of wherein the swipe comprises a movement of the user's finger across the ...

Подробнее
28-11-2019 дата публикации

Two Stage Methods for Processing Adhesives and Related Compositions

Номер: US20190359866A1
Принадлежит:

Methods for forming melt processable, actinic radiation polymerizable and crosslinkable adhesives are described. In certain versions, the adhesives or pre-adhesive compositions include two initiators and are polymerized and/or crosslinked by exposure to actinic radiation such as UV light or electron beam radiation. Also described are pre-adhesive compositions including polymerizable monomers, articles including the adhesives, and various methods and systems related to the adhesives and their application. In addition, various apparatuses are described for polymerizing or crosslinking the compositions. 1. A method of forming an adhesive , the method comprising:providing a composition comprising at least one monomer, a first actinic radiation initiator, and a second actinic radiation initiator, wherein the second initiator is substantially non-photoactive at activation wavelength(s) of the first initiator;at least partially polymerizing the composition by exposing the composition to radiation comprising wavelengths corresponding to the activation wavelength(s) of the first initiator;at least partially crosslinking the composition to thereby form the adhesive by exposing the composition to radiation comprising wavelengths corresponding to the activation wavelength(s) of the second initiator;wherein at least one of the first and the second initiators is a polymerizable monomer containing a photoinitiator moiety.2. The method of wherein the at least partially polymerizing the composition is performed by irradiating the composition with UV radiation3. The method of wherein the at least partially polymerizing the composition is performed by irradiating the composition with electron beam radiation.4. The method of wherein the at least partially crosslinking the composition is performed by irradiating the composition with UV radiation.5. The method of wherein the at least partially crosslinking the composition is performed by irradiating the composition with electron beam ...

Подробнее
28-11-2019 дата публикации

SYSTEMS AND METHODS FOR TWO-LEVEL PROTECTION OF POWER CONVERSION SYSTEMS

Номер: US20190363633A1
Принадлежит:

Systems and methods are provided for protecting a power conversion system. A system controller includes a two-level protection component and a driving component. The two-level protection component is configured to detect an output power of a power conversion system and generate a protection signal based on at least information associated with the output power. The driving component is configured to generate a drive signal based on at least information associated with the protection signal and output the drive signal to a switch associated with a primary current flowing through a primary winding of the power conversion system. The driving component is further configured to generate the drive signal corresponding to a first switching frequency to generate the output power equal to a first power threshold and generate the drive signal corresponding to a second switching frequency to generate the output power equal to a second power threshold. 131.-. (canceled)32. A system controller for protecting a power conversion system , the system controller comprising:a protection signal generator configured to detect an output power of a power conversion system and generate a protection signal; anda drive signal generator configured to generate a drive signal and output the drive signal to a switch; generate the drive signal corresponding to a first switching frequency to generate the output power equal to a first power threshold; and', 'generate the drive signal corresponding to a second switching frequency to generate the output power equal to a second power threshold, the second power threshold being larger than the first power threshold, the second switching frequency being larger than the first switching frequency;, 'wherein the drive signal generator is further configured to in response to the output power being larger than the first power threshold for a first predetermined period of time, generate the protection signal to cause the switch to open and remain open to ...

Подробнее
19-12-2019 дата публикации

SYSTEMS AND METHODS FOR ADJUSTING ONE OR MORE THRESHOLDS IN POWER CONVERTERS

Номер: US20190386568A1
Принадлежит:

System controller and method for a power converter. For example, the system controller includes a first current controller configured to receive a first input signal and generate a first output signal based at least in part on the first input signal, a second current controller configured to receive a compensation signal and a second input signal and generate a second output signal based at least in part on the second input signal, and a drive signal generator configured to receive the first output signal and the second output signal, generate a first drive signal based at least in part on the first output signal and the second output signal, and generate a second drive signal based at least in part on the first output signal and the second output signal. 161.-. (canceled)62. A system controller for a power converter , the system controller comprising: receive a first output signal from a first current controller;', 'receive a second output signal from a second current controller;', 'generate a first drive signal based at least in part on the first output signal and the second output signal;', 'generate a second drive signal based at least in part on the first output signal and the second output signal; and, 'a drive signal generator configured tothe second current controller configured to receive a compensation signal and output the second output signal to the drive signal generator; in response to the first output signal being at a first logic level and the second output signal being at a second logic level, generate, with or without a first delay, the first drive signal at a third logic level; and', 'in response to the first output signal being at the second logic level and the second output signal being at the first logic level, generate, with or without a second delay, the first drive signal at a fourth logic level, the fourth logic level being different from the third logic level;, 'wherein the drive signal generator is configured to in response to the ...

Подробнее
26-12-2019 дата публикации

SYSTEMS AND METHODS FOR REGULATING POWER CONVERSION SYSTEMS WITH OUTPUT DETECTION AND SYNCHRONIZED RECTIFYING MECHANISMS

Номер: US20190393790A1
Принадлежит:

System and method for regulating a power conversion system. A system controller for regulating a power conversion system includes a first controller terminal and a second controller terminal. Additionally, the system controller is configured to receive an input signal at the first controller terminal, and generate a drive signal at the second controller terminal based at least in part on the input signal to turn on or off a transistor in order to affect a current associated with a secondary winding of the power conversion system. Moreover, the system controller is further configured to determine whether the input signal is larger than a first threshold at a first time, in response to the input signal being determined to be larger than the first threshold at the first time, determine whether the input signal is smaller than a second threshold at a second time. 160.-. (canceled)61. A system controller for regulating a power converter , the system controller comprising:a first controller terminal configured to receive an input signal; anda second controller terminal configured to output a drive signal; determine whether the input signal is larger than a first threshold at a first time; and', determine whether the input signal is smaller than a second threshold at a second time, the second time being after the first time; and', 'in response to the input signal being determined to be smaller than the second threshold at the second time, change the drive signal at the second controller terminal from a first logic level to a second logic level to turn on a transistor., 'in response to the input signal being determined to be larger than the first threshold at the first time,'}], 'wherein the system controller is configured to62. The system controller of is further configured to claim 61 , in response to the input signal not being determined to be larger than the first threshold at the first time claim 61 , keep the drive signal at the first logic level regardless of whether ...

Подробнее
09-07-2015 дата публикации

Compostable films and compostable labels

Номер: WO2015103239A1
Принадлежит: AVERY DENNISON CORPORATION

Mono-layer and multi-layer compostable films are provided. The multi-layered compostable films may generally include a core layer fabricated from one or more compostable resins. Multi-layer compostable films may include at least one skin layer fabricated from the same or different compostable resin used to fabricate the core layer. Also provided are labels formed from such compostable films in combination with aqueous dispersions of bio-based pressure sensitive adhesives. These labels have many possible applications, such as labels for a variety of fruits.

Подробнее
09-05-2019 дата публикации

Compostable films and compostable labels

Номер: ES2712123T3
Принадлежит: Avery Dennison Corp

Una etiqueta, que comprende: una película con una capa de superficie de impresión que incluye un material compostable y un agente separador, incluyendo la capa de superficie de impresión al menos una primera superficie; en donde el material compostable es compostable según la norma ASTM D5338 y/o según la norma ASTM D6400; y una capa adhesiva que comprende un material adhesivo ya sea posicionada adyacente en al menos una porción de la primera superficie de la capa de superficie de impresión, o bien posicionada una o más capas eliminadas desde la primera superficie de la capa de superficie de impresión; en donde el material adhesivo es una dispersión de base acuosa con una fase discontinua que incluye una pluralidad de partículas de prepolímero derivado de biomasa dispersas por toda una fase continua de base acuosa, y en donde el material adhesivo además incluye un catalizador. A label, comprising: a film with a printing surface layer that includes a compostable material and a separating agent, including the printing surface layer at least a first surface; wherein the compostable material is compostable according to ASTM D5338 and / or according to ASTM D6400; and an adhesive layer comprising an adhesive material either positioned adjacent at least a portion of the first surface of the printing surface layer, or positioned one or more layers removed from the first surface of the printing surface layer; wherein the adhesive material is an aqueous-based dispersion with a discontinuous phase that includes a plurality of biomass-derived prepolymer particles dispersed throughout a continuous aqueous-based phase, and wherein the adhesive material also includes a catalyst.

Подробнее
24-08-2017 дата публикации

Two stage methods for processing adhesives and related compositions

Номер: CA3082141A1
Принадлежит: Avery Dennison Corp

Methods for forming melt processable, actinic radiation polymerizable and crosslinkable adhesives are described. In certain versions, the adhesives or pre-adhesive compositions include two initiators and are polymerized and/or crosslinked by exposure to actinic radiation such as UV light or electron beam radiation. Also described are pre-adhesive compositions including polymerizable monomers, articles including the adhesives, and various methods and systems related to the adhesives and their application. In addition, various apparatuses are described for polymerizing or crosslinking the compositions.

Подробнее
12-06-2014 дата публикации

Pressure sensitive adhesives prepared from maleated vegetable oils and expoxidized vegetable oils

Номер: CA2894253A1
Принадлежит: Avery Dennison Corp

A method that includes reacting an epoxidized naturally-occurring oil or fat with a triacid to form a pressure sensitive adhesive or a pressure sensitive adhesive precursor is disclosed. The present invention also includes methods for preparing a triacid and for preparing a pressure sensitive adhesive label or tape.

Подробнее
14-03-2017 дата публикации

Systems and methods for regulating power conversion systems with output detection and synchronized rectifying mechanisms

Номер: US9595874B2
Принадлежит: On Bright Electronics Shanghai Co Ltd

System and method for regulating a power conversion system. A system controller for regulating a power conversion system includes a first controller terminal and a second controller terminal. Additionally, the system controller is configured to receive an input signal at the first controller terminal, and generate a drive signal at the second controller terminal based at least in part on the input signal to turn on or off a transistor in order to affect a current associated with a secondary winding of the power conversion system. Moreover, the system controller is further configured to determine whether the input signal is larger than a first threshold at a first time, in response to the input signal being determined to be larger than the first threshold at the first time, determine whether the input signal is smaller than a second threshold at a second time.

Подробнее
18-07-2017 дата публикации

Systems and methods for source switching and voltage generation

Номер: US9712065B2
Принадлежит: On Bright Electronics Shanghai Co Ltd

System and method for regulating a power conversion system. An example system controller for regulating a power conversion system includes a first controller terminal associated with a first controller voltage and coupled to a first transistor terminal of a first transistor, the first transistor further including a second transistor terminal and a third transistor terminal, the second transistor terminal being coupled to a primary winding of a power conversion system, a second controller terminal associated with a second controller voltage and coupled to the third transistor terminal, and a third controller terminal associated with a third controller voltage. The first controller voltage is equal to a sum of the third controller voltage and a first voltage difference. The second controller voltage is equal to a sum of the third controller voltage and a second voltage difference.

Подробнее
10-05-2007 дата публикации

Low dark current cmos image sensor pixel having a photodiode isolated from field oxide

Номер: US20070102780A1
Автор: Qiang Luo
Принадлежит: Qiang Luo

A low dark current CMOS image sensor pixel comprises a photodiode that is isolated from the field oxide by forming a relatively small photodiode within a relatively large active area such that the field oxide is substantially separated from the photodiode. The active area should be large enough such that the photodiode depletion region formed during operation of the photodiode does not touch the field oxide sidewall and corner. The isolation of the photodiode from the field oxide significantly reduces the number of dislocations near the field oxide that contribute to the dark current. Accordingly, the isolation of the photodiode from the field oxide dramatically reduces the dark current of the photodiode during operation. The present invention can be formed with a conventional CMOS process without adding any additional process steps.

Подробнее
24-08-2017 дата публикации

Two stage methods for processing adhesives and related compositions

Номер: CA3155448A1
Принадлежит: Avery Dennison Corp

Methods for forming melt processable, actinic radiation polymerizable and crosslinkable adhesives are described. In certain versions, the adhesives or pre-adhesive compositions include two initiators and are polymerized and/or crosslinked by exposure to actinic radiation such as UV light or electron beam radiation. Also described are pre-adhesive compositions including polymerizable monomers, articles including the adhesives, and various methods and systems related to the adhesives and their application. In addition, various apparatuses are described for polymerizing or crosslinking the compositions.

Подробнее
06-01-2022 дата публикации

Two stage methods for processing adhesives and related compositions

Номер: AU2020203584B2
Принадлежит: Avery Dennison Corp

OF THE DISCLOSURE Methods for forming melt processable, actinic radiation polymerizable and crosslinkable adhesives are described. In certain versions, the adhesives or pre-adhesive compositions include two initiators and are polymerized and/or crosslinked by exposure to actinic radiation such as UV light or electron beam radiation. Also described are pre-adhesive compositions including polymerizable monomers, articles including the adhesives, and various methods and systems related to the adhesives and their application. In addition, various apparatuses are described for polymerizing or crosslinking the compositions. Page 41 of 41 12366803 1 (GHMatters) P109455.AU.2

Подробнее
27-10-2022 дата публикации

Adhesive compositions

Номер: US20220340786A1
Принадлежит: Lion Copolymer Geismar LLC

Disclosed herein are pressure sensitive adhesive compositions that can include a styrene-butadiene rubber latex and a tackifier agent. In another example, the pressure sensitive adhesive compositions can include a styrene-butadiene rubber latex and acrylic polymer. The adhesive compositions can further include mineral oil and ethylene propylene diene monomer rubber. The pressure sensitive adhesives compositions can have a have low volatile organic compound vapor pressures while having effective adhesion properties on low surface energy substrates.

Подробнее
27-03-2018 дата публикации

Methods for managing a broadband connection using a narrowband connection

Номер: US9930560B2
Принадлежит: Motorola Solutions Inc

A method, apparatus, and system for application controlled network selection between a broadband network and a narrowband network include operating an application with an end device with a narrowband connection to the end device; acquiring a source broadband connection comprising a source broadband network address; negotiating a peer-to-peer broadband connection with the end device utilizing the narrowband connection to communicate the source broadband network address; utilizing the peer-to-peer broadband connection for data associated with the application responsive to successful negotiating; and managing the peer-to-peer broadband connection using the narrowband connection as a control channel therefor. The narrowband connection can include Digital Mobile Radio (DMR), Land Mobile Radio (LMR), Project 25 (P25), Terrestrial Trunked Radio (TETRA), or the like.

Подробнее
31-08-2018 дата публикации

Two-stage methods for processing adhesives and related compositions

Номер: CO2018008680A2
Принадлежит: Avery Dennison Corp

Se describen métodos para formar adhesivos polimerizables y reticulables mediante radiación actínica procesables en estado fundido. En algunas versiones, los adhesivos o composiciones de preadhesivo incluyen dos iniciadores y están polimerizados y/o reticulados mediante su exposición a la radiación actínica tal como luz UV o radiación de haz de electrones. También se describen composiciones de preadhesivo que incluyen monómeros polimerizables, artículos que incluyen los adhesivos, y varios métodos y sistemas relacionados con los adhesivos y su aplicación. Además, se describen varios aparatos para polimerizar y/o reticular las composiciones. Methods for forming polymerizable and crosslinkable adhesives by actinic radiation processable in the molten state are described. In some versions, the adhesives or pre-adhesive compositions include two initiators and are polymerized and / or crosslinked by exposure to actinic radiation such as UV light or electron beam radiation. Also described are preadhesive compositions that include polymerizable monomers, articles including adhesives, and various methods and systems related to adhesives and their application. In addition, various apparatus for polymerizing and / or crosslinking the compositions are described.

Подробнее
11-02-2017 дата публикации

A system and method for temperature control in a light emitting diode illumination system

Номер: TWI571173B
Принадлежит:

Подробнее
16-04-2013 дата публикации

Systems and methods for driving transistors with high threshold voltages

Номер: TW201316685A
Принадлежит: On Bright Electronics Shanghai

本發明揭露用於驅動具有高閾值電壓的電晶體的系統及方法。該系統包括浮動電壓產生器、第一驅動電路及第二驅動電路。浮動電壓產生器被配置以接收第一偏置電壓並產生浮動電壓,該浮動電壓產生器還被配置以當第一偏置電壓改變時改變該浮動電壓,並維持浮動電壓的大小比第一偏置電壓低了第一預定值。第一驅動電路被配置以接收輸入信號、第一偏置電壓及浮動電壓。第二驅動電路被配置以接收輸入信號、第二偏置電壓及第三偏置電壓,第一驅動電路及第二驅動電路被配置以產生用以驅動電晶體的輸出信號。

Подробнее
01-11-2012 дата публикации

Systems and methods for dimming control with capacitive loads

Номер: TW201244543A
Принадлежит: On Bright Electronics Shanghai

Подробнее

©DocSearch.ru 2020-2024