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 16567. Отображено 100.
18-03-2022 дата публикации

Конструкция блока питания с цифровым управлением

Номер: RU0000209673U1
Автор: Владислав Олегович Касьянов, Никита Олегович Студенков, Семён Петрович Шкарупо
Принадлежит: Никита Олегович Студенков

Полезная модель относится к области вторичных источников электропитания, в частности, к импульсным блокам питания, применение которых осуществляется в конструкции зарядных станций для автомобилей с электрическим или гибридным типом двигателя. Технический результат заключается в создании импульсного блока питания с цифровым управлением с возможностью параллельного включения. В конструкцию импульсного блока питания входят: корпус блока, два блока выпрямителей, блок ключей, трансформаторный блок, датчики тока и напряжения, ШИМ контроллер, цифровой интерфейс и блок дежурного питания, как минимум 2 разъема на вход и выход импульсного блока питания с цифровым управлением, система охлаждения. 4 ил. РОССИЙСКАЯ ФЕДЕРАЦИЯ (19) RU (11) (13) 209 673 U1 (51) МПК H02J 11/00 (2006.01) H02M 7/217 (2006.01) ФЕДЕРАЛЬНАЯ СЛУЖБА ПО ИНТЕЛЛЕКТУАЛЬНОЙ СОБСТВЕННОСТИ (12) ОПИСАНИЕ ПОЛЕЗНОЙ МОДЕЛИ К ПАТЕНТУ (52) СПК H02J 11/00 (2021.08); H02M 7/217 (2021.08) (21)(22) Заявка: 2021115581, 31.05.2021 (24) Дата начала отсчета срока действия патента: Дата регистрации: (73) Патентообладатель(и): Студенков Никита Олегович (RU) 18.03.2022 (45) Опубликовано: 18.03.2022 Бюл. № 8 2 0 9 6 7 3 R U (54) Конструкция блока питания с цифровым управлением (57) Реферат: Полезная модель относится к области включения. В конструкцию импульсного блока вторичных источников электропитания, в питания входят: корпус блока, два блока частности, к импульсным блокам питания, выпрямителей, блок ключей, трансформаторный применение которых осуществляется в блок, датчики тока и напряжения, ШИМ конструкции зарядных станций для автомобилей контроллер, цифровой интерфейс и блок с электрическим или гибридным типом двигателя. дежурного питания, как минимум 2 разъема на Технический результат заключается в создании вход и выход импульсного блока питания с импульсного блока питания с цифровым цифровым управлением, система охлаждения. 4 управлением с возможностью параллельного ил. Стр.: 1 U 1 U 1 Адрес для переписки: 634049, г.Томск, ...

Подробнее
Номер записи: 1
12-04-2012 дата публикации

Switching Power Supply Circuit with Reduced Total Harmonic Distortion

Номер: US20120086411A1
Автор: Laszlo A. Takacs
Принадлежит: Energy Focus Inc

A switching power supply circuit has a control circuit for current-mode on-off control of a primary switch connected to an inductor in a voltage boost topology for operation in boundary-conduction mode. The time at which the primary switch is opened is determined by magnitude of current flowing through the primary switch together with the instantaneous voltage present on an AC input to the power supply circuit. The time at which the primary switch is closed is determined by demagnetization of the inductor. An improvement to the foregoing switching power supply circuit comprises a maximum-on-time enforcement circuit to limit the maximum possible primary switch on-time to a predetermined maximum period of time. The enforcement circuit provides a signal to the control circuit to cause termination of the primary switch on-state if and only if the primary switch has been turned on for more than the predetermined maximum period of time.

Подробнее
Номер записи: 2
19-04-2012 дата публикации

Coordinated control of multi-terminal hvdc systems

Номер: US20120092904A1
Автор: Jiuping Pan, Kailash Srivastava, Reynaldo Nuqui, Tomas Jonsson
Принадлежит: ABB Research Ltd Switzerland

Multi-terminal HVDC systems and control methods therefore are disclosed. Methods for controlling multi-terminal HVDC systems having a plurality of converter stations may include receiving a plurality of measurements from a plurality of measurement units disposed on the HVDC system, identifying from the measurements a disruption within the HVDC system, monitoring the measurements to identify a steady-state disrupted condition for the HVDC system, calculating a new set point for at least one of the plurality of converter stations, which new set point may be based on the steady-state disrupted condition and the measurements, and transmitting the new set point to the at least one of the plurality of converter stations. In some examples, the HVDC systems may include an HVDC grid interconnecting the plurality of converter stations and a controller communicatively linked to the plurality of measurement units and the plurality of converter stations.

Подробнее
Номер записи: 3
26-04-2012 дата публикации

Three-level active rectification pulse width modulation control

Номер: US20120099349A1
Автор: John Duward Sagona
Принадлежит: Hamilton Sundstrand Corp

An active rectification system includes a three-level active rectifier and a pulse with modulation (PWM) control portion. The three-level active rectifier includes at least three switches, the at least three switches are selectively switchable between an upper state, a center state, and a lower state. The PWM control portion is in communication with the at least three switches, the PWM control portion is configured and disposed to create an upper carrier signal and a lower carrier signal, and the PWM control portion is configured and disposed to selectively switch the at least three switches between the upper state, the center state, and the lower state in response to a phase disposition of the upper carrier signal and the lower carrier signal.

Подробнее
Номер записи: 4
23-08-2012 дата публикации

Power supply and power control circuitry

Номер: US20120212987A1
Автор: Alexander W. BERNSTEIN, Richard D. Weir
Принадлежит: EEStor Inc

A power supply can include a storage component or a storage unit including a capacitive element. In an embodiment, the power supply can include an electrical energy storage unit, a transformer, switching elements, and a pulse width modulation unit. In a particular embodiment, the power supply can be configured to provide an output voltage different from the voltage supplied by the electrical energy power storage unit. In another embodiment, the power supply can include storage components having electrodes connect to different printed circuit boards. In still another embodiment, the power supply can include an output anode, an output cathode, and an input electrode connected to the storage component. In a further embodiment, the power supply circuitry can include a transformer, switching elements, a pulse width modulation unit, and an output control units coupled to an output electrode, the pulse width modulation unit, or any combination thereof.

Подробнее
Номер записи: 5
13-09-2012 дата публикации

DC-AC Inverter Assembly, in Particular Solar Cell Inverter

Номер: US20120228938A1
Автор: Bernhard Feuchter, Georg Mayer, Gisbert Krauter, Liliane Gasse, Walter Thieringer
Принадлежит: ROBERT BOSCH GMBH

A DC-AC inverter assembly, in particular a solar cell inverter of a photovoltaic plant, is disclosed. The inverter includes a semiconductor bridge circuit and wherein a DC chopper controller is provided for creating half-waves of an AC voltage on the output side and the bridge circuit is connected downstream of the DC chopper controller and acts as pole changer on the half-waves.

Подробнее
Номер записи: 6
27-09-2012 дата публикации

DC Power Source For A High Voltage Power Apparatus

Номер: US20120242153A1
Автор: Georgios Demetriades, Konstantinos Papastergiou, Willy Hermansson
Принадлежит: Individual

A dc power source for a high voltage power apparatus, the dc power source including one or more strings including a plurality of dc power source units connected in series, and switches configured to connect and disconnect said strings. The switches are solid-state switches distributed among the power source units of each string, and all solid-state switches in the string are arranged so that they are turned on and off simultaneously. Each switch is connected in parallel with a first controllable semiconductor in a first direction and connected in parallel with a second controllable semiconductor in a second direction which is opposite to the first direction, and the dc power source includes a control unit configured to bypass a failed switch by triggering the forward biased of the first or second controllable semiconductor connected to the failed switch in case a fault in the switch is detected.

Подробнее
Номер записи: 7
18-10-2012 дата публикации

Active Rectifier For Vehicles

Номер: US20120262962A1
Автор: Richard A. Kominsky
Принадлежит: ITT Manufacturing Enterprises LLC

A vehicle power system including an unregulated alternator; a saturable reactor receiving an output AC voltage from the alternator and generating a reduced AC voltage in response to a bias signal; and an active rectifier rectifying the reduced AC voltage to a DC voltage.

Подробнее
Номер записи: 8
25-10-2012 дата публикации

Three-phase rectifier circuit

Номер: US20120268976A1
Автор: Chao Yan, Jianping Ying, Wenxin Zhang, Yiqing Ye
Принадлежит: Delta Electronics Shanghai Co Ltd

In one aspect of the invention, a three-phase rectifier circuit having three input terminals and two output terminals includes a three-phase diode bridge, three switching circuits, and a voltage source. The three-phase diode bridge has three pairs of first diodes electrically parallel-connected to the two output terminals. Each pair of first diodes has two first diodes series-connected defining a first node therebetween, and electrically connected to a corresponding input terminal at the first node. Each switching circuit has a first terminal, a second terminal and a plurality of switches electrically series-connected between the first and second terminals. The first and second terminals are respectively electrically connected to a second node and a third node, respectively between the first node and the two first diodes of the corresponding pair of first diodes. The voltage source is electrically parallel-connected between the two output terminals and electrically connected to each switching circuit.

Подробнее
Номер записи: 9
08-11-2012 дата публикации

Power factor correction circuit

Номер: US20120281448A1
Автор: Xiaoru Xu
Принадлежит: Hangzhou Silergy Semiconductor Technology LTD

The present invention relates to a power factor correction circuit, that can include: an inductor current detector that generates a sampling voltage signal, and sinusoidal half-wave current and voltage signals based on the sampling voltage signal; a mediate signal generator generating slope voltage and clock signals in response to the sinusoidal half-wave voltage signal, where a frequency of each varies with the sinusoidal half-wave voltage signal; a current modulation circuit receiving the sinusoidal half-wave current signal and a voltage feedback signal representative of a power stage output voltage to generate a regulation signal that is compared against the slope voltage signal to generate a modulation signal; and a logic/driving circuit receiving the modulation and clock signals, and generating a controlling signal that controls a power switch with variable frequency to maintain the inductor current in phase with the sinusoidal half-wave voltage signal and the power stage output voltage constant.

Подробнее
Номер записи: 10
06-12-2012 дата публикации

Data and Power System Based on CMOS Bridge

Номер: US20120307539A1
Автор: Clemens M. Zierhofer
Принадлежит: MED EL Elektromedizinische Geraete GmbH

A signal processing circuit is provided that includes a CMOS bridge rectifier circuit having a first input terminal and a second input terminal for receiving a rectangular wave form that includes a data sequence. A first output terminal and a second output terminal provides a rectified dc output voltage. A first data output terminal is connected to one of the first and the second input terminals, and a second data output terminal is connected to one of the first and the second output terminals, wherein the data output terminals provide an output signal representative of the data sequence. A substantially resistive load may be operatively coupled between the first and second voltage output terminals, the resistive load without a discrete parallel capacitor.

Подробнее
Номер записи: 11
17-01-2013 дата публикации

Power factor correction circuit

Номер: US20130016539A1
Автор: Kohei Nishibori, Nadthawut CHALERMBOON
Принадлежит: Minebea Co Ltd

A power factor correction circuit includes: the first series circuit consisting of the first rectifier element and the first switching element; the second series circuit consisting of the second rectifier element and the second switching element; the first/second reactors; and the first/second current detectors. The first/second current detectors have each the first/second transformers, both primary parts of which consist of the first/second reactors. The first and the second switching elements are controllable based on the first output signal according to the reactor current from the secondary side of the first transformer and the second output signal according to the reactor current from the secondary side of the second transformer so as to apply a desired DC voltage to the load circuit.

Подробнее
Номер записи: 12
21-03-2013 дата публикации

Method and Apparatus for Control of Commodity Distribution System

Номер: US20130069437A1
Автор: Biallas Kenneth, Laurence Harris, Sergey Numerov, William Christian Tracy Nelson
Принадлежит:

A system for automated reconfiguration of a commodity distribution system is provided. The system includes a plurality of nodes located in the distribution system and a plurality of node controllers. The node controllers control respective nodes in accordance with a first or second operating mode to affect system reconfiguration in response to a fault condition, loading, system optimization, system expansion and combinations thereof. 1. A system for automated reconfiguration of a commodity distribution system , comprising:a plurality of nodes being located in the distribution system;a plurality of node controllers;node controllers in the plurality of node controllers controlling respective nodes in the plurality of nodes and including resources which monitor the distribution system, which source, permit or inhibit flow of commodity in the distribution system in response to detection of a condition requiring reconfiguration of the distribution system, which communicate information with at least one other node controller in the plurality of node controllers to transmit and receive communicated information; which affect the state of the associated node to source, permit or inhibit flow of commodity in accordance with one of a first operating mode and a second operating mode, the second operating mode being different than the first operating mode.2. The system of claim 1 , the one of the first operating mode and the second operating mode being user selectable.3. The system of claim 1 , the one of the first operating mode and the second operating mode being automatically selected based upon a condition of the distribution system.4. The system of claim 1 , wherein one of the first operating mode and the second operating mode comprises a rapid restoration operating mode.5. The system of claim 4 , wherein the rapid restoration operating mode comprising a mode of operating wherein a minimum number of the nodes are operated so as to affect commodity service restoration to a ...

Подробнее
Номер записи: 13
28-03-2013 дата публикации

WIRE CONNECTING METHOD AND CONVERTER STATION FOR ULTRA-HIGH VOLTAGE DIRECT CURRENT POWER TRANSMISSION, AND ULTRA-HIGH VOLTAGE DIRECT CURRENT POWER TRANSMISSION SYSTEM

Номер: US20130076118A1
Автор: Gao Liying, Liu Zhenya, Shu Yinbiao, Sun Xin
Принадлежит: STATE GRID CORPORATION OF CHINA

Connection methods for UHVDC transmission at rectification side and at inversion side, UHV converter stations at rectification side and at inversion side, and an UHVDC transmission system are disclosed. The present invention employs a manner of multiple drop points to solve the problem of poor security stability of electric grid caused by feeding a large amount of power via one point. 1. A connection method for UHVDC transmission at rectification side , comprising:setting an UHV HV converter station at rectification side and an UHV LV converter station at rectification side respectively;said UHV LV converter station at rectification side receiving a first AC power from a first power source collection point, converting said first AC power into a first low voltage DC power and inputting it into said UHV HV converter station at rectification side;said UHV HV converter station at rectification side receiving a second AC power from a second power source collection point and said first low voltage DC power, rectifying said second AC power and superimposing it with said first low voltage DC power to generate a first UHVDC power and outputting the first UHVDC power via an UHV DC transmission line.2. The method according to claim 1 , wherein claim 1 ,said UHV HV converter station at rectification side comprises two HV valve halls with different polarities;said UHV LV converter station at rectification side comprises two LV valve halls with different polarities.3. The method according to claim 2 , whereinsaid two HV valve halls with different polarities are located at different locations and/or said two LV valve halls with different polarities are located at different locations.4. A connection method for UHVDC transmission at inversion side claim 2 , comprising:setting an UHV HV converter station at inversion side and an UHV LV converter station at inversion side respectively;said UHV HV converter station at inversion side inputting a first UHVDC power via an UHVDC ...

Подробнее
Номер записи: 14
04-04-2013 дата публикации

POWER SUPPLY AND CONTROL DEVICE FOR ACTUATORS, CORRESPONDING ACTUATION ASSEMBLY, AND AIRCRAFT COMPRISING SUCH A DEVICE

Номер: US20130082149A1
Автор: Boucaud Arnaud, ELIE Philippe, GUYAMIER Alexandre, Nauroy Pascal, Nguyen Van Lam, Pontrucher Marc, Weibel Jean-Francois, Wong David
Принадлежит: SAGEM DEFENSE SECURITE

A power supply and control device for a plurality of electric actuators, the device comprising a control circuit and a power circuit, the power circuit having an inverter module connected to a switch module provided with connection means for connection to the actuators, the control circuit being connected to the switch module to operate it so as to connect the actuators sequentially to the inverter module, wherein the control circuit is arranged to control the inverter module and the switch module sequentially, and wherein the control circuit includes a monitoring module arranged to detect a malfunction of the device. An actuator assembly comprising a plurality of actuators and such a power supply and control device, and an aircraft including a plurality of actuators and such a power supply and control device of the above-specified type. 1. A power supply and control device for a plurality of electric actuators , the device comprising a control circuit and a power circuit , the power circuit having an inverter module connected to a switch module provided with connection means for connection to the actuators , the control circuit being connected to the switch module to operate it so as to connect the actuators sequentially to the inverter module , wherein the control circuit is arranged to control the inverter module and the switch module sequentially , and wherein the control circuit includes a monitoring module arranged to detect a malfunction of the device.2. The device according to claim 1 , wherein the switch module has at least one switch relay and the control circuit is arranged to allow the position of the switch relay to change only at zero voltage and current.3. The device according to claim 1 , wherein the control circuit is arranged to prevent the supply of power in the event of the switch relay being in a wrong position.4. The device according to claim 1 , wherein the monitoring module is arranged to inhibit the switch relay when the monitoring module ...

Подробнее
Номер записи: 15
04-04-2013 дата публикации

SIGNAL AND POWER TRANSMISSION SYSTEM

Номер: US20130082516A1
Автор: YAMAGUCHI Nobuhisa
Принадлежит: Denso Corporation

In a signal and power transmission system, a primary coil and a secondary coil magnetically coupled to the primary coil and connected to an electrical path are provided. An encoder encodes a target signal to be transmitted to produce a pulse code signal, and a voltage applying unit applies a voltage signal based on the pulse code signal to the primary coil as an input voltage signal. A decoder decodes an output voltage signal induced in the secondary coil using a variation in the output voltage signal into a decoded signal corresponding to the target signal. The output voltage signal is induced in the secondary coil based on the input voltage signal. A rectifier rectifies a current flowing through the electrical path connected to the secondary coil according to the output voltage signal induced in the secondary coil, thus outputting a rectified current as power. 1. A signal and power transmission system comprising:a primary coil;a secondary coil magnetically coupled to the primary coil and connected to a first electrical path;an encoder configured to encode a target signal to be transmitted to produce a pulse code signal;a voltage applying unit configured to apply a voltage signal based on the pulse code signal to the primacy coil as an input voltage signal;a decoder configured to decode an output voltage signal induced in the secondary coil using a variation in the output voltage signal into a decoded signal corresponding to the target signal, the output voltage signal being induced in the secondary coil based on the input voltage signal; anda rectifier configured to rectify a current flowing through the first electrical path connected to the secondary coil according to the output voltage signal induced in the secondary coil, thus outputting a rectified current as power.2. The signal and power transmission system according to claim 1 , wherein the decoder is connected to the secondary coil via a second electrical path claim 1 , and the rectifier is connected to the ...

Подробнее
Номер записи: 16
11-04-2013 дата публикации

ELECTRICITY SUPPLY SYSTEM

Номер: US20130088083A1
Автор: Tominaga Ryuichiro
Принадлежит: SANYO ELECTRIC CO., LTD.

[Problem] To provide an electricity supply system that efficiently utilizes electricity. 1. An electricity supply system , comprising:a power supply portion which supplies electricity, wherein a load consumes at least one of electricity supplied from the electricity supply portion and electricity supplied from an electricity system; andan electricity amount determining portion which determines an amount of electricity to be supplied from the electricity supply portion and an amount of electricity to be consumed by the load, whereinthe electricity supply portion is capable of supplying electricity to the electricity system; andthe electricity amount determining portion determines, based on values of a plurality of electricities that the electricity supply system deals with, the amount of electricity to be supplied from the electricity supply portion and the amount of electricity to be consumed by the load.2. The electricity supply system according to claim 1 , whereinthe electricity amount determining portion determines an amount of electricity to be supplied from the electricity supply portion to the electricity system, and, based on the amount of electricity, the electricity amount determining portion determines an amount of another electricity.3. The electricity supply system according to claim 2 , whereina value of the system electricity varies depending on time; andthe electricity amount determining portion so determines an amount of electricity to be supplied to the load as to make the load perform, in a time period when the value of the system electricity is comparatively low, a predetermined operation having been scheduled to be performed in a time period when the value of the system electricity is comparatively high.4. The electricity supply system according to claim 1 , whereinthe electricity amount determining portion is capable of changing an amount of electricity to be supplied from the electricity supply portion and an amount of electricity to be ...

Подробнее
Номер записи: 17
18-04-2013 дата публикации

AUTO-SWITCHING DUPLEX MODULE

Номер: US20130093249A1
Автор: Chapel Steve, Pachoud William
Принадлежит:

A system and method (“utility”) for providing power to an electrically powered device from alternate, redundant power sources via a single power cord. The utility is operable to provide redundant power to an electrical device having a power cord terminating in a standard plug. The utility is operable to sense a loss of power quality from one power source, and to switch a connection to another power source in response to the loss. The utility may be configured to match the form factor of a standard (e.g., NEMA or other electrical standard) duplex receptacle unit. The utility may be incorporated into a standard outlet box or may plug into a standard outlet box. 1. An apparatus for use in delivering power to a device having a power cord terminating in a standard plug , comprising:a first standard receptacle for receiving a standard plug;a first terminal assembly for interconnecting to a first power source;a second terminal assembly for interconnecting to a second power source;a switch for selectively interconnecting said first standard receptacle to either said first terminal assembly or said second terminal assembly, wherein said switch is operative for sensing a reduction of power quality from one of said first or second power sources and for switching a connection of said first standard receptacle responsive to said reduction of power quality, said switching being electronically controlled by power of said one of said first and second power sources; anda housing configured to house said first standard receptacle, said first terminal assembly, said second terminal assembly, and said switch within a form factor of a standard National Electrical Manufacturers Association (NEMA) receptacle.2. (canceled)3. The apparatus as set forth in claim 1 , further comprising a second standard receptacle for receiving a standard plug claim 1 , said second standard receptacle being interconnected to said switch so as to selectively receive power from either said first power source or ...

Подробнее
Номер записи: 18
18-04-2013 дата публикации

SAFETY DEVICE

Номер: US20130093260A1
Автор: Hallundbaek Jørgen
Принадлежит: WELLTEC A/S

The present invention relates to a downhole safety device () for a downhole tool () for controlling a delivery of electricity from a power device to an electrical component in the tool, comprising a first member () comprising a plurality of conductors () and a second member () comprising a plurality of conductors (). Furthermore, the invention relates to a method for activating the safety device. 112. A downhole safety device () for a downhole tool () for controlling a delivery of electricity from a power device to an electrical component in the tool , comprising:{'b': 3', '4, 'a first member () comprising a plurality of conductors (),'}{'b': 6', '7, 'a second member () comprising a plurality of conductors (), and'}{'b': 31', '8', '9, 'a moving device () for moving the first member in relation to the second member, wherein the conductors of the first member are first () and second () conductors, and at least two of the first conductors have a greater surface area than the second conductors, enabling the first conductors to transfer more power to the conductors of the second member than the second conductors.'}2. A downhole safety device according to claim 1 , wherein the conductors of the second member have a surface area which is substantially the same as or larger than that of the first conductors of the first member.3. A downhole safety device according to claim 1 , wherein the surface area of the first conductor is at least 1.5 times the area of the second conductor claim 1 , preferably at least 2 times the area of the second conductor.4. A downhole safety device according to claim 3 , wherein the surface area of the first conductor has a contact area of at least 20 mm claim 3 , preferably at least 25 mmand more preferably at least 30 mm.5. A downhole safety device according to claim 1 , wherein the surface area of the second conductor has a contact area of less than 50% of a contact area of the first conductor claim 1 , preferably less than 30% of the contact ...

Подробнее
Номер записи: 19
25-04-2013 дата публикации

SYSTEMS AND METHODS FOR ZERO-DELAY WAKEUP FOR POWER GATED ASYNCHRONOUS PIPELINES

Номер: US20130099570A1
Автор: Manohar Rajit, OTERO CARLOS, Tse Jonathan
Принадлежит:

A device including a pipeline having a number of groups of pipeline stages. Each group has at least one pipeline stage, a gated power supply power net or a gated ground power net, the gated power supply power net and the gated ground power net having components that allow gating power supply and ground to that group of pipeline stages. The device also has a number of control components, each control component controlling the gating of power supply or ground. Each group of pipeline stages controls the gating of power supply and ground of a subsequent group of pipeline stages. Each one group of pipeline stages being selected such that a forward propagation delay from a preceding group of pipeline stages to that one group is at least equal to a time required for activating gated power supply or ground in that one group. Methods of implementation are also discussed. 1. A device comprising: one or more groups of pipeline stages, each group comprising at least one pipeline stage;', 'at least one group comprising a gated power supply power net; said gated power supply power net having components that allow gating power supply to said at least one group; and', 'one or more control components; each control component from said one or more control components controlling the gating of power supply;', 'at least one group of pipeline stages controlling the gating of power supply of at least one subsequent group of pipeline stages;', 'each one group of pipeline stages being such that a largest forward propagation delay from at least one preceding group of pipeline stages to said each one group is at least equal to a time required for activating gated power supply in said each one group., 'a pipeline comprising2. The device of wherein each stage from said each group is an asynchronous stage.3. The device of wherein virtual power supply voltage is substantially equal to an ungated power supply voltage.4. The device of wherein virtual power supply voltage is less than an ungated ...

Подробнее
Номер записи: 20
25-04-2013 дата публикации

POWER DISTRIBUTION SYSTEM

Номер: US20130099575A1
Автор: Loubier Christopher
Принадлежит:

A power distribution system includes: a master cell; a plurality of power cells, each power cell including a plurality of nodes capable of delivering power to a load; a maintenance cell configured to present at least one of (i) information to be forwarded to the plurality of power cells or (ii) information received from the plurality of power cells; and a communication bus for distribution of data between at least one of the master cell and one of the power cells or the power cells themselves. 1. A power distribution system comprising:a master cell;a plurality of power cells, each power cell including a plurality of nodes capable of delivering power to a load;a maintenance cell configured to present at least one of (i) information to be forwarded to the plurality of power cells or (ii) information received from the plurality of power cells; anda communication bus for distribution of data between at least one of the master cell and the power cells or the power cells themselves.2. The power distribution system of claim 1 , wherein at least one of the power cells monitors at least one environmental variable that can affect at least one of function or reliability of at least one of the master cell or the power cells.3. The power distribution system of claim 2 , wherein the at least one environmental variable is selected from the group consisting of: (i) primary system voltage claim 2 , (ii) charge pump voltage claim 2 , and (iii) temperature.4. The power distribution system of claim 1 , wherein the maintenance cell is attachable to the master cell.5. The power distribution system of claim 1 , wherein the maintenance cell provides at least one of a display and operator control buttons.6. The power distribution system of claim 1 , which includes a radio frequency (“RF”) transmitter and receiver enabling control of a plurality of nodes across the plurality of power cells.7. The power distribution system of claim 1 , wherein the RF receiver is attachable to the master cell. ...

Подробнее
Номер записи: 21
25-04-2013 дата публикации

POWER MANAGEMENT SYSTEMS

Номер: US20130099577A1
Автор: CARAGHIORGHIOPOL Eftimie, HARTULAR Alexandru, Lipcsei Laszlo, NICULAE Marian
Принадлежит: O2MICRO INC.

A power management system includes a first switch, a second switch, and a controller coupled to the first and second switches. The first switch has a first transfer terminal. The second switch has a second transfer terminal. The controller controls power conversion by turning on a third switch periodically. The first and second transfer terminals and a third transfer terminal of the third switch are coupled to a common node. The resistance between the first transfer terminal and the common node, the resistance between the second transfer terminal and the common node, and the resistance between the third transfer terminal and the common node are substantially equal to zero. 1. A power control circuit comprising:a common node coupled to a first terminal via a first switch and coupled to a second terminal via a second switch, said first switch having a first body diode, and said second switch having a second body diode;a switching node coupled to said common node via a third switch and coupled to a reference terminal via a fourth switch, said third switch having a third body diode, and said fourth switch comprising a diode; anda controller coupled to said first, second, third and fourth switches and operable for controlling said first, second, third and fourth switches to control power flow between said first terminal, said second terminal, said common node, and said switching node,wherein cathodes of said first, second and third body diodes are coupled to said common node, and a cathode of said diode of said fourth switch is coupled to an anode of said third body diode, and wherein resistance between said common node and the cathode of each body diode of said first, second and third body diodes is substantially equal to zero.2. The power control circuit as claimed in claim 1 , wherein a switch of said first claim 1 , second and third switches comprises an n-channel metal-oxide-semiconductor field-effect transistor (NMOSFET) and has a semiconductor substrate connected ...

Подробнее
Номер записи: 22
25-04-2013 дата публикации

SYSTEMS CONFIGURED TO TRANSMIT OPTICAL POWER SIGNALS TRANSDERMALLY OUT OF A LIVING SUBJECT, AND DEVICES AND METHODS

Номер: US20130099598A1
Автор: Hyde Roderick A., Ishikawa Muriel Y., JR. Lowell L., Rivet Dennis J., Sweeney Elizabeth A., Wood, Wood Victoria Y.H.
Принадлежит: SEARETE LLC

In an embodiment, a system includes an internal optical power transmitter configured to be disposed within a living subject. The internal optical power transmitter includes a power source configured to provide electrical energy and an electrical-optical converter operably coupled to the power source. The electrical-optical converter may be configured to convert at least a portion of the electrical energy into one or more optical power signals transdermally transmittable out of the living subject. The system further includes an external optical-electrical converter configured to convert the one or more optical power signals into one or more electrical power signals and at least one external device configured to be operably coupled to the external optical-electrical converter and powered by the one or more electrical power signals. Embodiments of methods, biocompatible electrical-optical converters, and internal optical power transmitters are also disclosed. 1. A system , comprising: a power source configured to provide electrical energy; and', 'an electrical-optical converter operably coupled to the power source, the electrical-optical converter configured to convert at least a portion of the electrical energy into one or more optical power signals transdermally transmittable out of the living subject and having a power of at least about 10 μW., 'an internal optical power transmitter configured to be disposed within a living subject, the internal optical power transmitter including'}2. The system of claim 1 , wherein the electrical-optical converter is configured to output the one or more optical power signals with the power at about 10 μW to about 10 W.3. The system of claim 1 , wherein the electrical-optical converter is configured to output the one or more optical power signals with the power at about 10 μW to about 1 mW.4. The system of claim 1 , wherein the electrical-optical converter is configured to output the one or more optical power signals with the power ...

Подробнее
Номер записи: 23
02-05-2013 дата публикации

RENEWABLE MOBILE RESOURCE STATION

Номер: US20130106191A1
Автор: Iovino Claudia, Iovino Jonathan, Katz Harvey
Принадлежит:

The renewable mobile resource station of the present disclosure may contain all or some of the following systems: self-contained, self-sustaining, mobile renewable power systems, employing solar, wind, internal combustion, diesel, and other portable power generation systems. The enclosed portable station may also preferably include portable resource systems such as water purification and storage systems; chemical and biological water treatment and waste treatment systems; lighting; heating and cooling systems; refrigeration; cooking systems; communication systems; and fire and chemical/biological containment systems. A control module and system may be provided to control the separate systems either on-site or remotely, or automatically such as by a software program. 1. A renewable mobile resource system:comprising a mobile enclosure capable of transport in rugged conditions;said mobile enclosure capable of receiving electrical power alternatively from an electrical grid and portable power generator sources,said mobile enclosure capable of dispensing electrical power to resource systems capable of transport within said mobile enclosure.2. The renewable mobile resource station of wherein said portable generator sources include at least one photovoltaic array3. The renewable mobile resource station of wherein said at least one photovoltaic array is supported from said mobile enclosure.4. The renewable mobile resource station of wherein said portable generator sources includes at least one wind turbine generator in electrical communication with said mobile enclosure. This application claims the benefit of U.S. Provisional Application No. 61/511,757 filed Jul. 26, 2011, herein incorporated by reference in its entirety for all purposes.This invention relates to systems which provide mobile utility services where such services are either otherwise unavailable or interrupted.A known problem exists with safely and efficiently providing educational, nutritional, humanitarian ...

Подробнее
Номер записи: 24
02-05-2013 дата публикации

DC POWER SUPPLY WITH LOW POWER LOSS

Номер: US20130107593A1
Автор: FISCH Josef, Raykhman Mykhaylo
Принадлежит: MINEBEA CO., LTD.

A DC power supply () having a series regulator () for generating a fixed output DC voltage (VCC) at a variable input AC voltage (VAC) with low power loss. For this purpose, the DC power supply () has a transformer () having at least two auxiliary windings (W, W) having different numbers of windings that can each be connected via a switching device () to the series regulator (). Switching is effected such that the power loss is kept as low as possible. 113103121123103122410420430421241042043045105205305. A DC power supply () for providing a fixed , regulated DC voltage (VCC) comprising a transformer (; ; ) having a primary winding (Wp) and having an auxiliary winding (W) that is connected via a rectifier (D) to a series regulator () , the transformer (; ; ) has at least one further auxiliary winding (W) , wherein all of the auxiliary windings have a different number of windings , a switching device (; ; ; ) is provided through which the series regulator () is connectable to one of the auxiliary windings (W , W) and the switching device (; ; ; ) has a control signal input (; ; ; ) that is configured to receive a switching signal.26510520530566. A DC power supply according to claim 1 , wherein a monitoring device () for monitoring at least one reference value is provided that is connected to the control signal input (; ; ; ) of the switching device () and switching of the switching device () takes place according to the at least one reference value.312122. A DC power supply according to claim 2 , wherein an input AC voltage (VAC) acts as the reference value and switching of the auxiliary windings (W claim 2 , W) thus takes place according to the input AC voltage (VAC) claim 2 , and a difference between the input voltage (U claim 2 , U) and the output voltage (VCC) at the series regulator () is as low as possible.410312121101201301. A DC power supply according to claim 1 , wherein the transformer (; ) has first and second ones of the auxiliary windings (W claim 1 , W) ...

Подробнее
Номер записи: 25
09-05-2013 дата публикации

SWITCHING OF CONDUCTOR PAIR IN POWER OVER ETHERNET SYSTEM

Номер: US20130113275A1
Автор: DWELLEY David Mclean, Heath Jeffrey Lynn
Принадлежит: LINEAR TECHNOLOGY CORPORATION

Technique for providing power to a powered device (PD) over a cable having first and second sets of twisted pairs, such as signal pairs and spare pairs. Power Sourcing Equipment (PSE) circuitry is coupled via a first switch to the second set, e.g. to the spare pairs. A switch control circuit turns the first switch off to enable the PSE circuitry to perform a prescribed operation in connection with the PD over only the first set, e.g. over the signal pairs, and turns the first switch on to enable the PSE circuitry to perform the prescribed operation in connection with the PD over the first and second sets. 1. A system for providing power to a powered device (PD) over a cable having first and second sets of twisted pairs , comprising:Power Sourcing Equipment (PSE) circuitry,a first switch for coupling the PSE circuitry to the second set, anda switch control circuit for turning the first switch off to enable the PSE circuitry to perform a prescribed operation in connection with the PD over only the first set, and for turning the first switch on to enable the PSE circuitry to perform the prescribed operation in connection with the PD over the first and second sets.2. The system of claim 1 , wherein the first switch is turned off to enable the PSE circuitry to detect the PD over only the first set claim 1 , and the first switch is turned on to enable the PSE circuitry to detect the PD over the first and second sets.3. The system of claim 1 , wherein the first switch is turned off to enable the PSE circuitry to power the PD over only the first set claim 1 , and the first switch is turned on to enable the PSE circuitry to power the PD over the first and second sets.4. The system of claim 1 , wherein the first set includes first and second pairs of conductors in the cable claim 1 , and the second set includes third and fourth pairs of conductors in the cable.5. The system of claim 4 , wherein the PSE circuitry is configured for providing power over at least a pair of first ...

Подробнее
Номер записи: 26
09-05-2013 дата публикации

TRANSPORT REFRIGERATION UNIT WITH AUXILIARY POWER CIRCUIT AND INTERLOCK

Номер: US20130113289A1
Автор: Cresswell Kenneth, Ma RongAi, Whyte David
Принадлежит: CARRIER CORPORATION

A pre-wired auxiliary power circuit () is built into a transport refrigeration system for supplying electrical power to an optional auxiliary system when installed in connection with the transport refrigeration unit. A low cost safety interlock () is provided in association with the auxiliary power circuit. 1. A transport refrigeration unit for conditioning the atmosphere within a transport cargo space , comprising:an auxiliary electrical power circuit tapping off an electrical power circuit operatively associated with the transport refrigeration unit as a source of electrical power to which an auxiliary system may be connected when installed in operative association with the transport refrigeration unit; anda safety power interlock in operative association with a main power supply circuit of the transport refrigeration unit, the safety power interlock breaking the main power supply circuit when the auxiliary system is removed.2. The transport refrigeration unit as recited in further comprising a seal cap disposed in operative association with the auxiliary electrical power circuit and with the safety power interlock when the auxiliary system is removed claim 1 , the seal cap closing the safety power interlock so as to supply electrical power through the main power supply circuit to the transport refrigeration unit.3. A transport refrigeration unit for conditioning the atmosphere within a transport cargo space and including an evaporator module operatively associated with the cargo space and at least one evaporator fan motor claim 1 , and further comprising an auxiliary electrical power circuit to which an auxiliary system may be connected when installed in operative association with the transport refrigeration unit claim 1 , the auxiliary electrical power circuit tapping off an electrical power circuit for supplying power to the at least one evaporator fan motor claim 1 , the auxiliary electrical power circuit being energized only when the evaporator fan motor is ...

Подробнее
Номер записи: 27
16-05-2013 дата публикации

POWER CONVERSION APPARATUS

Номер: US20130121045A1
Автор: Awane Kazutoshi, Kaneyama Takashi, MURAKAMI Satoshi, YAMADA Masaki
Принадлежит: Mitsubishi Electric Corporation

An inverter circuit is connected in series to an AC power supply, and at the subsequent stage, a smoothing capacitor is connected via a converter circuit including semiconductor switching devices. A control circuit controls the converter circuit by providing a short-circuit period for bypassing the smoothing capacitor in each cycle, and controls the inverter circuit to improve the power factor of the AC power supply by using a current instruction such that the voltage of the smoothing capacitor becomes a target voltage. When the voltage of a DC voltage source of the inverter circuit has exceeded a predetermined upper limit, the control circuit increases the current instruction to control the inverter circuit, thereby increasing the discharge amount of the DC voltage source. Thus, even if the voltage variation of the DC voltage source of the inverter circuit increases, it is possible to stably continue the control. 1. A power conversion apparatus comprising:an inverter circuit composed of one or more single-phase inverters whose AC sides are connected in series and each of which is composed of a plurality of semiconductor switching devices and a DC voltage source, the AC sides being connected in series to a first terminal of a power supply, the inverter circuit superimposing the sum of outputs of the single-phase inverters onto an output of the power supply;a converter circuit having a plurality of switches between DC bus lines, one of AC terminals of the converter circuit being connected to an AC output line at a subsequent stage of the inverter circuit, and the other one of the AC terminals being connected to a second terminal of the power supply, the converter circuit outputting DC power between the DC bus lines;a smoothing capacitor, connected between the DC bus lines, which smoothes an output of the converter circuit; anda control circuit which performs output control for the converter circuit so as to cause the voltage of the DC voltage supply of the inverter ...

Подробнее
Номер записи: 28
23-05-2013 дата публикации

Electrical Energy Store and Method for Closed-Loop Control of Such Energy Store

Номер: US20130127396A1
Автор: Bosch Erich, Triebel Clemens
Принадлежит: Younicos AG

In installations for generating alternative energy it is necessary due to the fluctuating availability of the alternative energy source to provide electrical energy stores which can temporarily store excess energy or can compensate for energy bottlenecks. The present invention relates to such an electrical energy store having a bidirectional DC/DC converter (DC) with a low-voltage side and a high-voltage side which can be connected via the high-voltage side to a DC bus () and which has a switching hysteresis (SH) with a charging and/or discharge curve, wherein the power consumption and/or the power output is dependent on the voltage on the high-voltage side. 16. An electrical energy store having a bidirectional DC/DC converter (DC) with a low-voltage side and a high-voltage side which can be connected via the high-voltage side to a DC bus () and which has a switching hysteresis (SH) with a charging and/or discharge curve , wherein the power consumption and/or the power output is dependent on the voltage of the high-voltage side.211212121261212. The electrical energy store according to claim 1 , wherein the energy store () has a multiplicity of cell stacks (ZS claim 1 , ZS claim 1 , ZSn) from a number of individual cells claim 1 , wherein a first and a second cell stack (ZS claim 1 , ZS) are connected to a first and a second bidirectional DC/DC converter (DC claim 1 , DC) and the first and the second DC/DC converters (DC claim 1 , DC) can be connected in each case via their high-voltage sides to a DC bus () and have in each case a switching hysteresis (SH claim 1 , SH) with a charging and/or discharge curve claim 1 , wherein the power consumptions and/or the power outputs are dependent on the voltage on the high-voltage side of the DC/DC converter (DC claim 1 , DC).31212. The electrical energy store according to claim 1 , wherein the first and second DC/DC converters (DC claim 1 , DC) have switching hystereses (SH claim 1 , SH) with different charging and/or ...

Подробнее
Номер записи: 29
23-05-2013 дата публикации

HYBRID 2-LEVEL AND MULTILEVEL HVDC CONVERTER

Номер: US20130128629A1
Автор: Clare Jonathan Charles, Tomasini Matteo, Trainer David, Whitehouse Robert
Принадлежит: ALSTOM Technology Ltd

A voltage source converter is used in high voltage direct current power transmission and reactive power compensation. The voltage source converter comprises first and second DC terminals for connection in use to a DC network, three phase elements and at least one auxiliary converter connected between the first and second DC terminals, each phase element including a plurality of primary switching elements and at least one AC terminal for connection in use to a respective phase of a multi-phase AC network, the plurality of primary switching elements being controllable in use to facilitate power conversion between the AC and DC networks, the or each auxiliary converter being operable in use to act as a waveform synthesizer to modify a first DC voltage presented to the DC network so as to minimise ripple in the DC voltage. 1. A voltage source converter for use in high voltage direct current power transmission and reactive power compensation , the voltage source converter comprising:first and second DC terminals for connection in use to a DC network,three phase elements and three auxiliary converters connected between the first and second DC terminals,each phase element including two parallel connected strings of series connected primary switching elements, the mid-points between each string of series-connected primary switching elements defining AC terminals for connection in use to a respective phase of an AC network,each auxiliary converter being connected in parallel with a respective one of the phase elements to define a single-phase converter limb and the three single-phase converter limbs being mounted and connected in series to the first and second DC terminals to define a two-terminal DC network for three-phase power transmission;the primary switching elements being controllable in use to facilitate power conversion between the AC and DC networks,each auxiliary converter being operable in use to act as a waveform synthesizer to modify a first DC voltage ...

Подробнее
Номер записи: 30
23-05-2013 дата публикации

METHOD OF CONTROLLING THE POWER INPUT TO A HVDC TRANSMISSION LINK

Номер: US20130128630A1
Автор: Jensen Kim Hoej, Sharma Ranjan
Принадлежит:

Disclosed is a method of controlling the power input to a HVDC transmission link, which HVDC transmission link is connected to an AC power plant via a first voltage source converter and to AC grid via a second voltage source converter, which method includes using the second voltage source converter to perform voltage control of the HVDC transmission link during a no-fault mode of operation of the grid; monitoring a HVDC transmission link parameter to detect an unbalanced fault; and using the first voltage source converter to regulate the output of the AC power plant on the basis of the monitored HVDC transmission link parameter in the event of an unbalanced fault. Also described are a control module for controlling the power input to a HVDC transmission link; a voltage source converter for a power plant; and a power generation and transmission arrangement. 1. A method of controlling the power input to a high-voltage direct-current (HVDC) transmission link , the HVDC transmission link is connected to an alternating-current (AC) power plant via a first voltage source converter and to an AC grid via a second voltage source converter , the method comprising:performing voltage control of the HVDC transmission link during a no-fault mode of operation of the grid via the second voltage source converter;monitoring a HVDC transmission link parameter to detect an unbalanced fault; andregulating the output of the AC power plant via the first voltage source converter in the event of an unbalanced fault, which is on the basis of the monitored HVDC transmission link parameter.2. The method according to claim 1 ,wherein the unbalanced fault is detected when the monitored HVDC transmission link parameter exceeds a predefined threshold value.3. The method according to claim 1 ,wherein the monitored HVDC transmission link parameter comprises a HVDC transmission link voltage.4. The method according to claim 1 ,wherein the regulating the output of the AC power plant comprises providing ...

Подробнее
Номер записи: 31
23-05-2013 дата публикации

NEUTRAL POINT CLAMPED CONVERTER CONTROL SYSTEMS AND METHODS

Номер: US20130128631A1
Автор: Klodowski Anthony Michael, Seymour Robert Allen, Yang Wenqiang
Принадлежит: GENERAL ELECTRIC COMPANY

A control system includes first and second fundamental control units for generating first and second fundamental commands, and a compensation control unit. The compensation control unit includes first and second calculation elements and a comparator for comparing first and second modulation indexes. When the first modulation index is less than the second modulation index, the first calculation element generates a first source-side compensation command. When the first source-side compensation command is not sufficient to balance the neutral point voltage, the first calculation element further generates a first line-side compensating command. When the first modulation index is greater than the second modulation index, the second calculation element generates a second line-side compensation command. When the second line-side compensation command is not sufficient to balance the neutral point voltage, the second calculation element further generates a second source-side compensating command. 1. A control system for providing commands to a source-side converter and a line-side converter of a power conversion system for balancing a neutral point voltage on a DC link between the source-side converter and the line-side converter , the control system comprising:a first fundamental control unit configured to generate a first fundamental command to implement fundamental power conversion operation for the source-side converter;a second fundamental control unit configured to generate a second fundamental command to implement fundamental power conversion operation for the line-side converter; and a comparator configured to compare a first modulation index of the source-side converter and a second modulation index of the line-side converter;', 'a first calculation element configured to, when the first modulation index is less than the second modulation index, receive a fundamental compensation command and generate a first source-side compensation command for injection into the ...

Подробнее
Номер записи: 32
23-05-2013 дата публикации

DUAL BRIDGE INVERTER USABLE WITH REACTIVE POWER

Номер: US20130128644A1
Автор: Chen Daojie, FRISCH Michael, Temesi Ernoe
Принадлежит: VINCOTECH GMBH

The invention relates to inverters employing a first and a second bridge circuit for converting DC input current into an AC output current. In particular, the invention proposes an inverter including two DC input terminals with a first and a second bridge circuit connected in parallel therebetween, the first bridge circuit for providing a first half-wave of a first polarity to a pair of AC output terminals and the second bridge circuit for providing a second half-wave of an opposite polarity to the pair of AC output terminals. The first half-wave is supplied from the first bridge circuit via a first and a second inductive element to the pair of AC output terminals, and the second half-wave is supplied from the second bridge circuit via a third and a fourth inductive element to the pair of AC output terminals. 1. An inverter comprising:{'b': 1', '2, 'claim-text': a first and a second branch, each comprising at least a switching element and a reversely-biased diode, and', 'a third branch for switchable interconnecting a first intermediate node of the first branch to a second intermediate node of the second branch;, 'two DC input terminals (DC+, DC−) with a first and a second bridge circuit connected in parallel therebetween, the first bridge circuit for providing a first half-wave of a first polarity to a pair of AC output terminals (AC, AC) and the second bridge circuit for providing a second half-wave of an opposite polarity to the pair of AC output terminals, each of the first and second bridge circuit including'}wherein a first half-wave, provided between the first and second intermediate node of the first bridge circuit, is supplied via a first and a second inductive element to the pair of AC output terminals, and the second half-wave, provided between the first and second intermediate node of the second bridge circuit, is supplied via a third and a fourth inductive element to the pair of AC output terminals,such that at least one of the first, second, third or ...

Подробнее
Номер записи: 33
23-05-2013 дата публикации

Power supply system, image forming apparatus having the same, and low-capacity ac processing circuit

Номер: US20130129373A1
Автор: Katsumi Inukai
Принадлежит: Brother Industries Ltd

A power supply system includes: a switching power supply to be connected to an AC power supply, the switching power supply rectifying and smoothing an AC voltage to generate predetermined DC voltage; a first capacitor including a first electrode connected to one end of the AC power supply, and a second electrode; a second capacitor including a first electrode connected to the other end of the AC power supply, and a second electrode; a surge-voltage suppressing circuit connected between the second electrode of the first capacitor and the second electrode of the second capacitor; a rectifier circuit connected to a first contact node between the first capacitor and the surge-voltage suppressing circuit and a second contact node between the second capacitor and the surge-voltage suppressing circuit; and an output-signal generating circuit connected to the rectifier circuit, and uses the rectified current to generate a predetermined output signal.

Подробнее
Номер записи: 34
30-05-2013 дата публикации

HIGH BANDWIDTH DATA TRANSPORT SYSTEM FOR USE IN A SMARTGRID

Номер: US20130134774A1
Автор: Kennedy Philip T.
Принадлежит: Lightwaves Systems, Inc.

A method for controlling electricity usage in at least one building through a jack device to a power consuming device includes passing electric power from a powerline and through the jack device to the power consuming device, sensing characteristics of electricity being consumed by the power consuming device using the jack device, sending messages from the jack device about the characteristics of the electricity being consumed, and receiving messages to control the passing of the electric power through the jack device to the power consuming device. The jack device may use a pulse based protocol in sending the messages and receiving the messages through the powerline. 1. A method for controlling electricity usage in at least one building through a jack device to a power consuming device comprising:passing electric power from a powerline and through the jack device to the power consuming device;sensing characteristics of electricity being consumed by the power consuming device using the jack device;sending messages from the jack device about the characteristics of the electricity being consumed;receiving messages to control the passing of the electric power through the jack device to the power consuming device; andisolating an electric meter electrically connected to the powerline from the jack device.2. The method of wherein the jack device uses a pulse based protocol in sending the messages and receiving the messages through the powerline.3. The method of wherein the pulse based protocol uses pulses in the frequency range of 50 kHz to 2 MHz.4. The method of wherein the messages are in an XML format.5. The method of further comprising sensing by the jack device of an event trigger using an event trigger sensor.6. The method of further comprising sensing an environmental condition with an environment sensor of the jack device.7. A jack device for use in a smart grid system claim 1 , the jack device comprising:a housing;a plurality of prongs extending from the housing ...

Подробнее
Номер записи: 35
30-05-2013 дата публикации

NETWORK SYSTEM

Номер: US20130134781A1
Автор: Ahn Junho, KANG Daeyong, Kim Yanghwan, Lee Hoonbong, Lee Koonseok, Seo Jeongsang
Принадлежит: LG ELECTRONICS INC.

Provided is a network system including: a utility network including an energy generating unit; a home network consuming energy generated from the energy generating unit and including an energy consuming unit operating based on energy information including at least one energy price information; and a power adjusting device through which a current or a voltage supplied for an operation of the energy consuming unit is passed, wherein the power adjusting device reduces energy cost or an energy amount used by adjusting a voltage or current amount applied to the energy consuming unit based on the energy information. 1. A network system comprising:a utility network including an energy generating unit;a home network consuming energy generated from the energy generating unit and including an energy consuming unit operating based on energy information including at least one energy price information; anda power adjusting device through which a current or a voltage supplied for an operation of the energy consuming unit is passed,wherein the power adjusting device reduces energy cost or an energy amount used by adjusting a voltage or current amount applied to the energy consuming unit based on the energy information.2. The network system according to claim 1 , wherein the power adjusting device comprises a switch unit adjusting a power or a current applied to the energy consuming unit according to whether the energy information is high or low cost information.3. The network system according to claim 1 , wherein the power adjusting device is disposed in the energy consuming unit and is controlled by a controlling unit in the energy consuming unit.4. The network system according to claim 1 , wherein the power adjusting device is disposed outside the energy consuming unit and comprises a power adjustment controlling unit controlling an operation of the power adjusting device.5. The network system according to claim 1 , wherein the power adjusting device comprises a memory for ...

Подробнее
Номер записи: 36
30-05-2013 дата публикации

ADAPTIVE LOAD CIRCUIT

Номер: US20130134783A1
Автор: DOSS Michel, Mohammediyan Shahriyar, Nguyen Truong-Khoa, Poirier Christian, Yong Christopher
Принадлежит:

The present subject matter is directed to an adaptive load circuit for use with traffic light control systems so as to permit operation using low current consumption lamps where the traffic light control systems were originally manufactured for operation with higher current consuming lamps. The adaptive load circuit provides a mechanism whereby an existing traffic light control system is fooled into accepting use of a low current consuming lamp by creating a specifically timed signal during an interval that the traffic light control system normally checks to determined lamp load characteristics. 1. An adaptive load circuit configured to enable use of low power consumption loads with an apparatus which is configured to periodically test for power consumption , the adaptive load circuit comprising:a timing signal input;a command transfer circuit coupled to said timing signal input and configured to produce a signal in synchronism with a timing signal applied to said timing signal input;a switch configured to receive a signal from said command transfer circuit; anda load,wherein receipt of a signal from said command transfer signal causes said switch to connect said load such that periodic tests for power consumption will be successful.2. A circuit as in claim 1 , wherein said circuit is configured as an options board for association with an apparatus which is configured to periodically test for power consumption.3. A circuit as in claim 1 , wherein said circuit is configured for association with a low power-consuming lighting device.4. A circuit as in claim 1 , further comprising:a feedback controlled constant current source coupled to said load by way of said switch,whereby current to said load remains constant while said switch is conductive.5. A circuit as in claim 4 , wherein said feedback controlled constant current source is configured to operate independently of current flow through said low power consumption loads.6. A lighting device claim 4 , comprising:a ...

Подробнее
Номер записи: 37
06-06-2013 дата публикации

SYSTEM AND METHOD OF CONTROLLING A PLURALITY OF ENERGY LOADS AND ENERGY SUPPLIES IN A COORDINATED MANNER

Номер: US20130140885A1
Автор: Albarran Richard Daniel, Cassidy Kevin, Craig Jason
Принадлежит:

The operation and/or power of a plurality of energy loads and/or energy supplies configured to supply power to the energy loads are managed in a coordinated manner. The coordinated control over the energy loads and/or energy supplies may enable the execution of missions including a one or more objectives by energy loads with an enhanced efficiency, autonomy, and/or effectiveness. Aspects of the planning and/or management of execution of the missions may be automated according to predetermined rules and/or criteria. 1. An unmanned vehicle or vessel , the vehicle or vessel comprising:a plurality of load interfaces configured to removably couple energy loads to the vehicle or vessel to communicatively link the energy loads with the vehicle or vessel, the load interfaces comprising a first load interface;a plurality of supply interfaces configured to removably couple energy supplies to the vehicle or vessel to communicatively link the energy supplies with the vehicle or vessel, wherein the supply interfaces include a wherein the energy supplies are coupled with the energy loads to permit the transfer of power therebetween, the supply interfaces comprising a first supply interface;a communication interface configured to transmit information from and/or receive information to the vehicle or vessel; a load module configured to obtain information related to the energy loads coupled with the vehicle or vessel via the load interfaces such that, responsive to the energy loads including a first energy load coupled to the first load interface, the load module is configured to obtain one or more of an identification of the first load, a load type of the first load, or information indicating at least one power specification of the first load;', 'a supply module configured to obtain information related to the energy supplies coupled to the vehicle or vessel via the supply interfaces such that, responsive to the energy supplies including a first energy supply coupled to the first ...

Подробнее
Номер записи: 38
06-06-2013 дата публикации

Circuit, method and system for overload protection

Номер: US20130140890A1
Автор: NISONEN Ilpo
Принадлежит: EFORE OYJ

An overload protection circuit for supplying electric power has advantageous applications especially in supplying power to capacitive loads. In prior art circuits, the charging current is lead to the capacitive load through a linearly operating transistor or through a power resistor. Therefore, prior art circuits often involve a risk of exceeding safe operating area of a power transistor, or circuits with a large number of components are needed. The present overload protection circuit has an inductor (L) coupled in series with a switching element (Q). Load current is measured (), and the switching element (Q) is controlled () to supply current to the load via the inductor (L) until a determined current limit is achieved. After achieving the current limit the switching element (Q) is controlled to off-state, during which the freewheeling current of the inductor (L) is lead through a voltage dependent element (Z). 2. The overload protection circuit according to claim 1 , characterized in that the control means are adapted to switch ON the switching element after a delay has passed after switching OFF the switching element due to the exceeding of the trigger threshold value.3. The overload protection circuit according to claim 1 , characterized in that the voltage dependent element (Z) is a metal oxide varistor.4. The overload protection circuit according to claim 1 , characterized in that the switching element (Q) comprises at least one power semiconductor.535. The overload protection circuit according to claim 1 , characterized in that the control means () comprises a programmable microcontroller.6. The overload protection circuit according to claim 1 , characterized in that the control means include stored data comprising current level values and corresponding values of trip threshold time lengths claim 1 , and the control means are adapted to monitor the time each current level is exceeded within a predetermined time window and to monitor possible exceeding of the ...

Подробнее
Номер записи: 39
06-06-2013 дата публикации

POWER CONVERTER AND INTEGRATED DC CHOKE THEREFOR

Номер: US20130141950A1
Автор: Cheng Zhongyuan, Wei Lixiang, Xiao Yuan, Zargari Navid R.
Принадлежит: ROCKWELL AUTOMATION TECHNOLOGIES, INC.

A power conversion system and a DC link choke therefore are presented, in which a continuous core structure is provided with first and second legs around which four or more windings are located, with one or more shunt structures providing a magnetic flux path between intermediate portions of the first and second legs. 1. A power conversion system , comprising:a rectifier operative to provide DC output power at a rectifier DC output;an inverter comprising an inverter DC input, and operative to provide AC output power to a load; and a core structure comprising: a first leg including first and second ends and an intermediate portion disposed between the first and second ends, a second leg including first and second ends and an intermediate portion disposed between the first and second ends, a third leg extending between the first ends of the first and second legs, and a fourth leg extending between the second ends of the first and second legs,', 'at least one shunt providing a magnetic flux path between the intermediate portions of the first and second legs,', 'a first winding forming a first coil coupled between the rectifier DC output and the inverter DC input, the first winding forming at least one turn around the first leg between the intermediate portion and the first end of the first leg, a second winding forming a second coil coupled between the rectifier DC output and the inverter DC input, the second winding forming at least one turn around the first leg between the intermediate portion and the second end of the first leg,', 'a third winding forming a third coil coupled between the rectifier DC output and the inverter DC input, the third winding forming at least one turn around the second leg between the intermediate portion and the first end of the second leg, and', 'a fourth winding forming a fourth coil coupled between the rectifier DC output and the inverter DC input, the fourth winding forming at least one turn around the second leg between the ...

Подробнее
Номер записи: 40
06-06-2013 дата публикации

CONTROLLER WITH PUNCTUATED SWITCHING CONTROL CIRCUIT

Номер: US20130141955A1
Автор: Orr Raymond K.
Принадлежит: POWER INTEGRATIONS, INC.

An example controller for use in a power supply includes a zero crossing detection (ZCD) circuit, a threshold detection circuit, and a punctuated switching control circuit. The ZCD circuit generates a ZCD signal that pulses each zero-crossing of an ac input voltage. The threshold detection circuit receives and compares an output of the power supply with a threshold reference. The punctuated switching control circuit generates a switching signal to control a switch to regulate the output of the power supply. The switching signal is generated to have intervals of switching and intervals of no switching, where each interval of switching begins responsive to the output of the power supply dropping below the threshold reference and each interval of no switching begins responsive to the output rising above the threshold reference. Each interval has a beginning that is synchronized with a pulse of the ZCD signal. 1. A controller for use in a power supply , the controller comprising:a zero crossing detection (ZCD) circuit coupled to generate a ZCD signal that pulses each zero-crossing of an ac input voltage of the power supply;a threshold detection circuit coupled to receive and compare a signal representative of an output of the power supply with a threshold reference; the punctuated switching control circuit generates the switching signal having intervals of switching and intervals of no switching,', 'each interval of switching begins responsive to the threshold detection circuit indicating that the output of the power supply has dropped below the threshold reference,', 'each interval of no switching begins responsive to the threshold detection circuit indicating that the output of the power supply has risen above the threshold reference, and', 'each interval of switching and each interval of no switching has a beginning that is synchronized with a pulse of the ZCD signal., 'a punctuated switching control circuit coupled to the ZCD circuit and to the threshold detection ...

Подробнее
Номер записи: 41
13-06-2013 дата публикации

POWER SUPPLY DEVICE, METHOD FOR CONTROLLING THE POWER SUPPLY DEVICE, AND ELECTRONIC APPARATUS

Номер: US20130147271A1
Автор: Kashu Yasuyuki, Yotsuji Tetsuaki
Принадлежит: LAPIS SEMICONDUCTOR CO., LTD.

Provided are a power supply device capable of producing a highly-accurate supply voltage at low power consumption, a method for controlling the power supply device, and an electronic apparatus in which the power supply device is incorporated. The power supply device includes a first power supplying part and a second power supplying part which has less output current capacity than the first power supplying part does. The power supply device is configured to control the voltage value of the second voltage produced in the second power supplying part in order to make the first voltage produced in the first power supplying part equal to the second voltage produced in the second power supplying part. 1. A power supply device , comprising:a first power supplying part which produces a first voltage;a second power supplying part which produces a second voltage, the second power supplying part requiring less drive current than the first power supplying part; andvoltage control signal generation means which is capable of outputting a voltage control signal for bringing the second voltage closer to a voltage value of the first voltage, whereinthe second power supplying part controls the voltage value of the second voltage in response to the voltage control signal.2. The power supply device according to claim 1 , whereinthe voltage control signal generation means produces the voltage control signal on the basis of either a difference in voltage value between the first voltage and the second voltage or a result of a magnitude comparison between the first voltage and the second voltage.3. The power supply device according to claim 1 , whereinthe first power supplying part includes a first reference voltage generation circuit for producing a first reference voltage and a first output amplifier for producing, as a first supply voltage, such a voltage as to have the same voltage value as that of the first reference voltage and then feeding the resulting voltage to a first power ...

Подробнее
Номер записи: 42
13-06-2013 дата публикации

Energy Systems And Energy Supply Methods

Номер: US20130147272A1
Автор: Coxon Allan, Johnson Shane, Walker Ian
Принадлежит:

Energy systems and energy supply methods are described. In one aspect, an energy system includes a bus system configured to conduct electrical energy, a plurality of input adapters electrically coupled with the bus system and configured to electrically couple with a plurality of respective source entities which are individually configured to provide electrical energy, a plurality of output adapters electrically coupled with the bus system and configured to electrically couple with a plurality of respective consuming entities which are individually configured to consume electrical energy, and control circuitry configured to control individual ones of the input adapters to provide electrical energy from respective ones of the source entities to the bus system and to control individual ones of the output adapters to provide electrical energy from the bus system to respective ones of the consuming entities. 1. An energy system comprising:a bus system configured to conduct electrical energy;a plurality of input adapters electrically coupled with the bus system and configured to electrically couple with a plurality of respective source entities which are individually configured to provide electrical energy;a plurality of output adapters electrically coupled with the bus system and configured to electrically couple with a plurality of respective consuming entities which are individually configured to consume electrical energy; andcontrol circuitry configured to control individual ones of the input adapters to provide electrical energy from respective ones of the source entities to the bus system and to control individual ones of the output adapters to provide electrical energy from the bus system to respective ones of the consuming entities.2. The system of wherein one of the output adapters is configured to couple with a grid system claim 1 , and the control circuitry is configured to determine a first amount of electrical energy to be provided to the consuming entities ...

Подробнее
Номер записи: 43
13-06-2013 дата публикации

INDUCTION LOAD DRIVING SYSTEM

Номер: US20130147278A1
Автор: Arisawa Daijiro, Yamada Masako
Принадлежит: Panasonic Corporation

When a direction command signal indicates a first direction, a signal for causing the other end of the induction load to be connected to a second power supply unit is output as a second control signal. In addition, after a passage of a first predetermined delay time after a first current detection value becomes less than a reference value of a conducting current, a signal for causing the one end of the induction load 5 to be connected to a first power supply unit is output as a first control signal. And, after a passage of a second predetermined delay time after the first current detection value becomes equal to or greater than the reference value of the conducting current, a signal for causing the one end of the induction load to be connected to the second power supply unit is output as the first control signal. 1. An induction load driving system comprising:a H-bridge circuit including four switching elements which are two switching elements connected to one end of an induction load and two switching elements connected to the other end of the induction load, the H-bridge circuit being connected between a first power supply unit and a second power supply unit in which its voltage is different from a voltage of the first power supply unit; anda control signal generating circuit configured to, according to a direction in which the conducting current flows through the induction load, generate a control signal to fix a state in which the two switching elements connected to one of the one end and the other end of the induction load are exclusively turned ON, and to perform switching to exclusively turn ON the two switching elements connected to the other of the one end and the other end of the induction load based on the conducting current flowing through the induction load;wherein the control signal generating circuit is configured to exclusively turn ON the two switching elements connected to the other of the one end and the other end of the induction load to increase ...

Подробнее
Номер записи: 44
20-06-2013 дата публикации

ELECTRONIC DEVICE

Номер: US20130153752A1
Автор: Sakurai Katsuhito
Принадлежит: CANON KABUSHIKI KAISHA

An electronic device according to one or more embodiments of the invention comprises a plurality of first output lines and a plurality of current to voltage convertors. Current signals from a plurality of signal sources are output to the first output lines. Each of the current to voltage convertors are electrically connected to a corresponding one of the first output lines. The current to voltage convertor includes a first amplification unit. An offset reduction unit in a subsequent stage of the current to voltage convertor is provided for each of the first output lines. 1. An electronic device comprising:a plurality of first output lines for current signals from a plurality of signal sources being output to the first output lines; anda plurality of current to voltage convertors, each of the current to voltage convertors being electrically connected to a corresponding one of the first output lines,wherein the current to voltage convertor includes a first amplification unit, andwherein an offset reduction unit in a subsequent stage of the current to voltage convertor is provided for each of the first output lines.2. The electronic device according to claim 1 , further comprising the plurality of the signal sources claim 1 ,wherein at least two of the plurality of the signal sources are electrically connected to each of the first output lines, andwherein each of the plurality of the signal sources includes a photoelectric conversion unit and a transistor configured to output a current signal based on an amount of charges generated by the photoelectric conversion unit to the corresponding first output line.3. The electronic device according to claim 1 ,wherein the first amplification unit includes an operational amplifier having a first input node and a second input node,wherein a resistor is provided in an electrical path between the first input node and an output node of the operational amplifier of the first amplification unit,wherein the first input node is ...

Подробнее
Номер записи: 45
20-06-2013 дата публикации

POWERING OF DEVICES

Номер: US20130154366A1
Автор: Counsell John Mark, Stewart Matthew John, Williams Andrew
Принадлежит:

Apparatus for powering devices, comprising a power supply having inputs from two or more different power sources; means for combining the power sources and providing a power supply to one or more end devices; means for comparing the two input power sources and generating an index representative of the relative proportions of each at any time and means for using the index to determine how the power is utilised. 1. Apparatus for powering devices , comprising a power supply having inputs from two or more different sources; means for combining the sources and providing a power supply to one or more end devices; means for determining the relative amounts of the input sources comprised in the output power supply and generating an index representative thereof at any time , and means for using the index to determine how the power is utilised.2. Apparatus as claimed in claim 1 , wherein the means for using the index comprises means for transmitting said index to the one or more end devices claim 1 , and means associated with each end device for using the index to determine how the power is utilised.3. Apparatus as claimed in claim 1 , wherein the means for using the index comprises control means associated adapted to use the index to determine how the power is utilised.4. Apparatus as claimed in claim 3 , wherein the control means comprises means for calculating an error using the index and an input set-point value claim 3 , and means associated with the control means and/or each end device for using the error to determine how the power is utilised.5. Apparatus as claimed in claim 3 , wherein the control means receives feedback on the power usage from one or more end devices claim 3 , wherein the control means are adapted to use the feedback information to determine how the power is utilised.6. Apparatus as claimed in claim 1 , wherein the power supply inputs differ in the amounts of carbon generated and the index is a ‘Green’ Index.7. Apparatus as claimed in claim 1 , ...

Подробнее
Номер записи: 46
20-06-2013 дата публикации

POWERING OF DEVICES

Номер: US20130154367A1
Автор: Counsell John Mark, Stewart Matthew John
Принадлежит:

An apparatus and method for a powering a network of devices, the apparatus comprising a power supply, means for inputting a parameter related to desired performance or power usage of the network, means for determining network load, means for generating an error signal using the parameter related to desired performance or power usage of the network, the network load, and measured power of the power supply, and means for using the error signal to determining how the power is utilised. 1. An apparatus for a powering a network of devices , comprising:a power supply;means inputting a parameter related to desired performance or power usage of the network;means for determining network load;means for generating an error signal using the parameter related to desired performance or power usage of the network, the network load, and measured power of the 10 power supply; andmeans for using the error signal to determining how the power is utilised.2. An apparatus as claimed in claim 1 , wherein the power supply comprises one or more energy sources.3. An apparatus as claimed in claim 2 , wherein at least one of the energy sources of the power supply produces ‘green’ or sustainable energy.4. An apparatus as claimed in claim 1 , wherein the means for determining network load is a sensing means.5. An apparatus as claimed in claim 1 , wherein the parameter related to the desired performance or power usage of the network relates to sustainable or ‘green’ energy.6. An apparatus as claimed in claim 1 , wherein the parameter is an energy performance set-point corresponding to the proportion of the total power used by the network that should be derived from sustainable or ‘green’ sources.7. An apparatus as claimed in claim 1 , wherein the apparatus further comprises at least one energy source for which the power is not measured.8. An apparatus as claimed in claim 1 , wherein the means for generating the error signal is a comparison means.9. An apparatus as claimed in claim 1 , wherein the ...

Подробнее
Номер записи: 47
20-06-2013 дата публикации

POWER MANAGEMENT SYSTEM THAT INCLUDES A GENERATOR CONTROLLER WHICH SELECTIVELY ACTIVATES A TRANSFER SWITCH

Номер: US20130154370A1
Автор: Albsmeier Eric D., Dorn Douglas W., Gross William Herman, Hackbarth Anthony J., Sember Andrew John
Принадлежит: KOHLER CO.

A power management system may include a generator controller. The generator controller may (i) operate the generator; and (ii) prohibit a transfer switch from supplying first or second power to an output of the transfer switch. In some systems, the first power may be primary power (e.g., from a primary power source such as a utility) while the second power is secondary power (e.g., from a secondary power source such as a generator). In other systems, the second power may be primary power while the first power is secondary power, or both the first and second power may be secondary power. 1. A power management system comprising:a generator that provides first power or second power; anda generator controller that operates the generator, the generator controller configured to prohibit a transfer switch from supplying the first power when the second power is unavailable.2. The power management system of claim 1 , wherein the first power is primary power; andwherein the generator provides the second power.3. The power management system of claim 2 , wherein the primary power is provided by a utility.4. The power management system of claim 1 , wherein the generator provides the first power; andwherein the second power is primary power.5. The power management system of claim 4 , wherein the primary power is provided by a utility.6. The power management system of claim 1 , wherein the generator controller prohibits the transfer switch from supplying the first power when the second power is unavailable by controlling a position of a switching mechanism of the transfer switch.7. The power management system of claim 6 , wherein the generator controller controls the position of the switching mechanism by controlling power to a transfer coil of the switching mechanism.8. The power management system of claim 6 , wherein the generator controller controls the position of the switching mechanism by providing a signal to a transfer switch controller that controls the transfer switch.9. ...

Подробнее
Номер записи: 48
20-06-2013 дата публикации

SIGNAL PROCESSING CIRCUIT, INVERTER CIRCUIT, BUFFER CIRCUIT, LEVEL SHIFTER, FLIP-FLOP, DRIVER CIRCUIT, AND DISPLAY DEVICE

Номер: US20130154374A1
Автор: Murakami Yuhichiroh, Sasaki Yasushi, Yamamoto Etsuo
Принадлежит:

A signal processing circuit of the present invention includes: first and second input terminals; an output terminal; a bootstrap capacitor; a first output section connected to the second input terminal and the output terminal; a second output section connected to the first input terminal, a first power source, and the output terminal; and an electric charge control section for controlling the electric charge of the bootstrap capacitor, the electric charge control section being connected to the first input terminal, the electric charge control section and the first output section being connected to each other via a relay section for either electrically connecting the electric charge control section and the first output section to each other or electrically blocking the electric charge control section and the first output section from each other, the electric charge control section including a resistor connected to a second power source. This configuration can increase reliability of a bootstrap-type signal processing circuit. 1. A signal processing circuit comprising:a first input terminal;a second input terminal;an output terminal;a first output section including a bootstrap capacitor and connected to the second input terminal and the output terminal;a second output section connected to the first input terminal, a first power source, and the output terminal;an electric charge control section for controlling an electric charge of the bootstrap capacitor, the electric charge control section being connected to the first input terminal; anda relay section by which the electric charge control section and the first output section are electrically (i) connected to each other or (ii) separated from each other,the electric charge control section including a resistor connected to a second power source.2. The signal processing circuit according to claim 1 ,wherein:the first output section includes a first transistor that has a first conductive electrode connected to the output ...

Подробнее
Номер записи: 49
20-06-2013 дата публикации

Solar Home Electrification With Grid Connection

Номер: US20130154375A1
Автор: Hirsch Gerald Philip, Schroeder Jon Murray
Принадлежит:

A means of providing solar powered electricity for day and nighttime use supported in part by power from the grid to allow a small generator to electrify the home or business with a small generator operating with much larger capacity. Excess solar energy is provided to the power company as needed. 113-. (canceled)14. A solar powered utility grid-attached energy system having an adjustable control for electrical energy received from alternating current (“AC”) grid lines of a utility and an adjustable control for output of electrical energy comprising: i. n-type and p-type semiconductor wafers;', 'ii. hot fins and cold fins;', 'iii. a direct current (“DC”) bus; and', 'iv. AC electrical energy output lines;, '(a) a thermoelectric generator that includes(b) a sun tracking concentrating reflector dish with focal point target;(c) a heat transfer system including a closed loop for recirculating air between an insulated heat store and said focal point tar-get;(d) said heat store also having a blower controlled loop for circulating air between said heat store and said hot fins of said thermoelectric generator;(e) a control system for regulating speed of said blower transferring heated air between said heat store and said hot fins of said thermoelectric generator;(f) a control circuit that includes: (A) at least a pair of grid powered current limiting circuit breakers, an input terminal of each grid powered current limiting circuit breaker being connectable to one of said AC grid lines; and', '(B) at least a pair of rectifiers for receiving via said circuit breakers electrical energy from said AC grid lines, a first of said rectifiers providing a negative DC voltage output and a second of said rectifiers providing a positive DC voltage output, said rectifier outputs being respectively connectable for outputting DC energy to corresponding positive and negative lines of said DC bus of said thermoelectric generator; and, 'i. a first special circuit for producing DC having a ...

Подробнее
Номер записи: 50
20-06-2013 дата публикации

Adaptive Current Control Timing and Responsive Current Control for Interfacing with a Dimmer

Номер: US20130154495A1
Автор: He Zhaohui
Принадлежит: Cirrus Logic, Inc.

In at least one embodiment, an electronic system adapts current control timing for half line cycle of a phase-cut input voltage and responsively controls a dimmer current in a power converter system. The adaptive current control time and responsive current control provides, for example, interfacing with a dimmer. The electronic system and method include a dimmer, a switching power converter, and a controller to control the switching power converter and controls a dimmer current. In at least one embodiment, the controller determines a predicted time period from a zero crossing until a leading edge of a phase-cut input voltage and then responsively controls the dimmer current to, for example, reduce current and voltage perturbations (referred to as “ringing”), improve efficiency, and reduce an average amount of power handled by various circuit components. 1. A method comprising:predicting a time period during a cycle of a phase-cut input voltage to a power converter system that is expected to occur in advance of a leading edge of the phase-cut input voltage; andduring the cycle of the phase-cut input voltage, actively controlling a decreasing transition rate of a current conducted through a dimmer at least by the predicted time period that is expected to occur in advance of the leading edge of the phase-cut input voltage.2. The method of wherein predicting a time period during a cycle of a phase-cut input voltage that is expected to occur in advance of a leading edge of the phase-cut input voltage comprises:predicting a duration of a dimmer non-conductive state; andreducing the predicted duration of the dimmer non-conductive state by a current offset to determine the predicted time period during a cycle of the phase-cut input voltage that is expected to occur in advance of a leading edge of the phase-cut input voltage.3. The method of wherein a value of the offset is a fixed amount of time for each cycle of the phase-cut input voltage.4. The method of further ...

Подробнее
Номер записи: 51
20-06-2013 дата публикации

Rectifier, received signal strength indicator, and receiver

Номер: US20130156084A1
Автор: Chang Sub SHIN, Cheol Sig Pyo, Hoyong Kang, In Hwan Lee, Nguyen Trung KEIN, Se Han Kim, Tae Joon Park, Wun-Cheol Jeong
Принадлежит: Electronics and Telecommunications Research Institute ETRI

A received signal strength indicator is provided. The received signal strength indicator includes a plurality of differential amplifiers forming an amplifier chain for amplifying differential signals and a plurality of rectifiers for rectifying signals output from the plurality of differential amplifiers and the differential signals, and a low pass filter for combining the signals rectified by the plurality of rectifiers to output received signal strength. Each rectifier includes a class AB voltage-current converter for converting a differential voltage into a current, and two triode transistors.

Подробнее
Номер записи: 52
27-06-2013 дата публикации

SYSTEM AND METHOD OF CONTROLLING OPERATION OF ELECTRIC DEVICE

Номер: US20130162039A1
Автор: KUMAZAWA Toshimitsu, NAOI Shinya, NORO Yasuhiro
Принадлежит:

A system for controlling an electric device operation includes a plurality of electric devices managed by a consumer associated with a power system and a plurality of control devices for controlling an operation of the electric devices. The system includes an operation time calculation unit configured to calculate a start time of an operation of increasing or decreasing power received from the plurality of electric devices based on a control command for requesting an increase or decrease of power received from the power system such that the start time is different for each of the electric devices. Each of the control devices executes an operation of increasing or decreasing reception power at an operation start time different for each of the electric devices as a result of calculation of the calculation unit. 1. A system for managing power usage comprising:an operation time calculation unit configured to calculate operation start times for increasing or decreasing power received by a plurality of electric devices based on a control command that requests an increase or decrease of power received from a power system, the start times being different for each of the electric devices, anda plurality of control devices configured to increase or decrease power received by the plurality of electric devices at the operation start times for each of the electric devices.2. The system of claim 1 , wherein each of the control devices comprises:a communication unit configured to exchange information with the plurality of electric devices;an operation state monitoring unit configured to monitor an operation state of the plurality of electric devices and/or an input state of a control command of the plurality of electric devices; anda calculation unit configured to calculate an operation time of each of the plurality of electric devices based on the information obtained from the monitoring unit and the control command.3. The system of further comprising an energy management device ...

Подробнее
Номер записи: 53
27-06-2013 дата публикации

DYNAMIC POWER CONTROL FOR A TWO WIRE PROCESS INSTRUMENT

Номер: US20130162040A1
Автор: Arntson Douglas Wayne
Принадлежит: Rosemount Inc.

A process instrument includes a transducer, a two wire interface, a microprocessor, a digital to analog converter, a first control circuit, and a second control circuit. A current passing through the two wire interface indicates a condition of the transducer. The microprocessor is interfaced with the transducer. The digital to analog converter receives a signal from the microprocessor indicating a current value. The first control circuit is coupled to the digital to analog converter and adapted to control the current passing through the two wire interface to the current value. The second control circuit is coupled to the digital to analog converter and supplies current to a secondary load. 1. A method for controlling power consumption of a process instrument comprising:determining a desired total power consumption for the process instrument;calculating a value for a control signal related to the desired total power consumption;supplying the control signal to a primary power control circuit;supplying the control signal to a secondary power control circuit;adjusting a power consumption of a secondary load, using the secondary power control circuit, to a portion of the desired total power consumption; andadjusting a power dissipation in a shunt resistor, using the primary power control circuit, to cause the total power consumption for the process instrument to equal the desired total power consumption.2. The method of claim 1 , wherein determining a desired total power consumption comprises:measuring an process variable using a sensor attached to the process instrument; anddetermining a desired total power consumption based on the measured process variable.3. The method of claim 1 , wherein the secondary load is increased power supplied to a microprocessor.4. The method of claim 1 , wherein the secondary load is one or more light emitting diodes.5. The method of claim 1 , wherein the secondary load is increased power supplied to a transducer.6. The method of claim 1 , ...

Подробнее
Номер записи: 54
27-06-2013 дата публикации

MULTIPLE RENEWABLES SITE ELECTRICAL GENERATION AND REACTIVE POWER CONTROL

Номер: US20130162043A1
Автор: Caceres Maximiliano, Ellena Gregory F., Mango Mark, McWhorter Kevin, Quiroga George, Thorp Scott
Принадлежит: Inventus Holdings, LLC

A method of configuring a renewable energy curtailment and control system uses a master controller and a plurality of controllers configured to control a cluster of renewable energy resources to deliver predetermined amounts of actual power and reactive power to a point of interconnect with a grid in accordance with contractual requirements with users of electrical power while reducing reactive power flow between renewable resources in the cluster. 1. In a renewable energy system comprising a plurality of renewable energy resources distributed over a geographic area , a method of configuring a renewable energy curtailment and control system comprising the steps of:providing a master controller;providing a plurality of controllers configured such that each controller controls one or more of said renewable energy resources;configuring said master controller and said plurality of controllers such that said master controller receives information from said plurality of controllers and issues commands to said plurality of controllers;providing said master controller with information comprising at least predetermined ranges of actual power and reactive power to be delivered to a point of interconnect;processing said information and issuing commands to cause said renewable energy resources to provide power such that the aggregate of power from said renewable energy resources is delivered to said point of interconnect within said predetermined ranges of actual and reactive power.2. The method of configuring a renewable energy curtailment and control system claimed in wherein said information provided to said master controller includes curtailment information.3. The method of configuring a renewable energy curtailment and control system claimed in claim 2 , further comprising the steps of establishing and communicating set points for power and reactive power for at least wind turbine renewable energy resources.4. The method of configuring a renewable energy curtailment and ...

Подробнее
Номер записи: 55
27-06-2013 дата публикации

DETECTION APPARATUS, POWER RECEIVING APPARATUS, NON-CONTACT POWER TRANSMISSION SYSTEM AND DETECTION METHOD

Номер: US20130162054A1
Автор: Komiyama Shinji
Принадлежит: SONY CORPORATION

Disclosed herein is a detection apparatus including: a resonant circuit provided with a Q-factor measurement coil and one or more capacitors to serve as a circuit for receiving pulses; a response-waveform detecting section configured to detect the waveform of a response output by the resonant circuit in response to the pulses; and a Q-factor measuring section configured to measure a Q factor of the resonant circuit from the response waveform detected by the response-waveform detecting section. It is possible to increase the precision of detection of a metallic foreign substance existing between a power transmitting side and a power receiving side. 1. A detection apparatus comprising:a resonant circuit provided with a Q-factor measurement coil and one or more capacitors to serve as a circuit for receiving pulses;a response-waveform detecting section configured to detect the waveform of a response output by said resonant circuit in response to said pulses; anda Q-factor measuring section configured to measure a Q factor of said resonant circuit from said response waveform detected by said response-waveform detecting section.2. The detection apparatus according to claim 1 , wherein said response waveform detected by said response-waveform detecting section is a time-domain response waveform.3. The detection apparatus according to claim 2 , wherein said Q-factor measuring section measures said Q factor of said resonant circuit from a first amplitude obtained from said time-domain response waveform at a first time and a second amplitude obtained from said time-domain response waveform at a second time lagging behind said first time by a time period determined in advance.4. The detection apparatus according to claim 3 , wherein claim 3 , when the resonance frequency of said resonant circuit is denoted by f claim 3 , said first amplitude obtained from said time-domain response waveform at said first time tis denoted by V claim 3 , and said second amplitude obtained from ...

Подробнее
Номер записи: 56
27-06-2013 дата публикации

Switching Power Supply Device and Light-Emitting Diode Lighting Device

Номер: US20130162157A1
Автор: IMADA Hiroshi, KANAMITSU Hideharu, Nakamura Yoshihiro, SUZUKI Masataka
Принадлежит: MINEBEA CO., LTD.

Implemented are a switching power supply device and a light-emitting diode lighting device in which a variation in load current can be suppressed against a wide range of variation in AC voltage. The configuration of the switching power supply device and the light-emitting diode lighting device includes: a rectifier unit which rectifies AC input voltage and outputs pulsating-current voltage; a power converting unit which receives the pulsating-current voltage and supplies a predetermined load current to a load; a current detecting unit which detects the load current; a drive control unit which controls the power converting unit to regulate the load current to a constant level; and an input voltage detecting unit which detects a variation in the AC input voltage. The drive control unit controls the power converting unit depending on the variation in the AC input voltage detected by the input voltage detecting unit. 1. A switching power supply device comprising:a rectifier unit which rectifies AC voltage received from an AC power line and outputs pulsating-current voltage;a power converting unit which receives the pulsating-current voltage and supplies a predetermined DC current to a load;a current detecting unit which detects load current flowing in the load;an input voltage detecting unit which detects a variation in the AC voltage; anda drive control unit which, in order to regulate the load current to a constant level, controls the power converting unit depending on a variation in the load current detected by the current detecting unit and at the same time, in order to suppress a variation in the DC current caused by the variation in the AC voltage, controls the power converting unit depending on the variation in the AC voltage detected by the input voltage detecting unit.2. The switching power supply device according to claim 1 , whereinthe power converting unit includes an insulation transformer; an input-side circuit including a primary coil of the insulation ...

Подробнее
Номер записи: 57
27-06-2013 дата публикации

METHOD AND SYSTEM FOR MANAGING AN ELECTRICAL LOAD OF A USER FACILITY BASED ON LOCALLY MEASURED CONDITIONS OF AN ELECTRICITY SUPPLY GRID

Номер: US20130162215A1
Автор: Cooper Timothy Patrick
Принадлежит:

The present invention relates to a method of managing the consumption and distribution of electricity in a user facility, wherein the user facility is connected to an electricity supply grid and the user facility comprises a grid connected on site generator; the method comprising the steps of measuring waveform conditions on a portion of the electricity supply grid adjacent the user facility to obtain locally measured waveform conditions; measuring electrical power readings from the on site generator; communicating the locally measured waveform conditions and the electrical power readings to a controller in the user facility; determining, at least on the basis of the locally measured waveform conditions, whether the electricity supply grid is oversupplied or undersupplied with electricity; and, modifying the flow of the electricity within the user facility based on whether the electricity supply grid is oversupplied or undersupplied with electricity and/or the electrical power readings from the grid connected on site generator. 1. A method of managing the consumption and distribution of electricity in a user facility , wherein the user facility is connected to an electricity supply grid and the user facility comprises a grid connected on site generator; the method comprising the steps of:a. measuring waveform conditions on a portion of the electricity supply grid adjacent the user facility to obtain locally measured waveform conditions;b. measuring electrical power readings from the on site generator;c. communicating the locally measured waveform conditions and the electrical power readings to a controller in the user facility;d. determining, at least on the basis of the locally measured waveform conditions, whether the electricity supply grid is oversupplied or undersupplied with electricity; and,e. modifying the flow of the electricity within the user facility based on whether the electricity supply grid is oversupplied or undersupplied with electricity and/or the ...

Подробнее
Номер записи: 58
27-06-2013 дата публикации

Energy Harvest System and the Method Thereof

Номер: US20130162236A1
Автор: Eric Yang
Принадлежит: Monolithic Power Systems Inc

The present disclosure discloses an energy harvest system converting an AC source provided by an energy harvester to a desired voltage. The AC source is boosted to the desired voltage by a bi-directional booster converter comprising fourth controllable transistors configured in an H-bridge, and stored by a storage capacitor. The desired voltage is then used to power various loads.

Подробнее
Номер записи: 59
27-06-2013 дата публикации

Power module and distributed power supply apparatus having the same

Номер: US20130163288A1
Автор: Chong Eun Kim, Don Sik KIM, Dong Jin Park, Duk You KIM, Gun Woo Moon, Jong Woo Kim
Принадлежит: Samsung Electro Mechanics Co Ltd

There are a power module and a distributed power supply apparatus having the same. The power module includes: a power factor correction stage switching input power to correct a power factor thereof; a DC/DC conversion stage switching the power of which the power factor has been corrected by the power factor correction stage to convert the power into preset DC power; a control unit controlling the power factor correction stage and the DC/DC conversion stage to perform a power conversion operation in a preset powered mode and stopping the power conversion operation of the DC/DC conversion stage in a preset idle mode; and a reference voltage supply unit supplying a preset reference voltage to the DC/DC conversion stage in the idle mode.

Подробнее
Номер записи: 60
27-06-2013 дата публикации

Power supply converter with a pre-regulator

Номер: US20130163295A1
Автор: Bing Lu, Isaac Cohen
Принадлежит: Texas Instruments Inc

A power supply converter with a pre-regulator is provided. In one embodiment, the power supply converter comprises a rectifier that receives an AC input voltage and provides a rectified AC input voltage, a filter that receives the rectified AC input voltage and provides a filtered DC input voltage and a pre-regulator that connects the rectified AC input voltage for allowing for providing current and voltage to the filter from the rectified AC input voltage upon a measurement that indicates that the AC input voltage or the rectified AC input voltage crosses a predetermined turn on threshold.

Подробнее
Номер записи: 61
27-06-2013 дата публикации

ELECTRONIC DEVICE AND IMAGE FORMING APPARATUS

Номер: US20130164019A1
Автор: HAYAKAWA Yoichi, Kato Koji, YOSHIDA Tatsuho
Принадлежит: Oki Data Corporation

An electronic device includes a first voltage output part configured to output a first voltage, a second voltage output part configured to output a second voltage, a first controller configured to receive the first voltage supplied from the first voltage output part, a second controller configured to receive the first voltage supplied from the first voltage output part, and a third controller configured to receive the second voltage supplied from the second voltage output part. The first controller stops the supply of the first voltage to the second controller by the first voltage output part after the supply of the second voltage to the third controller by the second voltage output part has been stopped. 1. An electronic device , comprising:a first voltage output part configured to output a first voltage;a second voltage output part configured to output a second voltage;a first controller configured to receive the first voltage supplied from the first voltage output part;a second controller configured to receive the first voltage supplied from the first voltage output part; anda third controller configured to receive the second voltage supplied from the second voltage output part, whereinthe first controller stops the supply of the first voltage to the second controller by the first voltage output part after the supply of the second voltage to the third controller by the second voltage output part has been stopped.2. The electronic device of claim 1 , whereinthe first controller includes an input part configured to receive an output state of the second voltage output part.3. The electronic device of claim 1 , whereinthe first controller includes an input part configured to receive an output state of a signal from the second controller to the third controller for stoppage of the supply of the voltage supplied by the second voltage output part.4. The electronic device of claim 1 , whereinthe first controller includes an input part configured to receive an output ...

Подробнее
Номер записи: 62
04-07-2013 дата публикации

SYSTEM FOR SUPPLYING ENERGY

Номер: US20130169047A1
Автор: DOLAH Asban, OMAR Nurul Afzan, YAHYA Mohamed Razman, YUSOFF Ashaari
Принадлежит: Telekom Malaysia Berhad

A system () for supplying energy is provided. The system () comprises a shelter () for a passenger awaiting transport. The shelter () has a roof portion () and photovoltaic cells () disposed on the roof portion (). The photovoltaic cells () are arranged to convert solar energy into electrical energy. The system () also comprises an energy distribution system () arranged to receive electrical energy from the photovoltaic cells () and to provide the electrical energy to at least one electrically powered component () of the system (). 1. A system for supplying energy , the system comprising:a shelter for a passenger awaiting transport, the shelter having a roof portion;photovoltaic cells disposed on the roof portion, the photovoltaic cells being arranged to convert solar energy into electrical energy; andan energy distribution system arranged to receive electrical energy from the photovoltaic cells and to provide the electrical energy to at least one electrically powered component of the system.2. The system of claim 1 , wherein the system comprises a battery system arranged to store electrical energy converted by the photovoltaic cells.3. The system of claim 2 , wherein the system is arranged such that the electrically powered components of the system can receive stored electrical energy from the battery system.4. The system of claim 1 , wherein the system comprises at least one of the following electrically powered components:a carbon collection system;a lighting system;a communications system;a display system;an audio system;a security system;a climate control system;a power outlet system; anda dryer system.5. The system of claim 4 , wherein the carbon collection system is arranged to remove carbon from air around the shelter.6. The system of claim 5 , wherein the carbon collection system is arranged to filter air that is around the shelter so as to remove carbon based pollutants for storage in the collection system.7. The system of claim 5 , wherein the shelter is ...

Подробнее
Номер записи: 63
04-07-2013 дата публикации

DETECTION CONTROL DEVICE AND METHOD THEREOF

Номер: US20130169053A1
Автор: CHEN Chien-Wen, Lin Chung-Chang, Tsai Yi-Fan, Wei Hong-Gi
Принадлежит: Realtek Semiconductor Corp.

The present invention provides an auto-detection control apparatus, which receives an electric power from one of a system power source signal and an external device and performs a detection when coupled to the external device. The apparatus comprises a detection module, a power management module and a control module. The detection module generates a first result based on whether a first power signal from the external device exists, wherein the first result is related to whether the external device provides an electricity to itself. The power management module prevents a conflict between the system power source signal and the first power signal. The control module determines whether the electric power is supplied to the external device by the power management module based on the first result. 1. An auto-detection control apparatus receiving an electric power from one of a system power source signal and an external device , and performing a detection when coupled to the external device , comprising:a detection module generating a first result based on whether a first power signal from the external device exists, wherein the first result is related to whether the external device provides an electricity to itself;a power management module preventing a conflict between the system power source signal and the first power signal; anda control module determining whether the electric power is supplied to the external device by the power management module based on the first result.2. An apparatus as claimed in claim 1 , wherein the detection module further generates a second result based on whether a system power source signal from the system power source exists claim 1 , and the control module further determines whether the electric power is supplied to the detection control apparatus by the power management module via the first power signal based on the second result.3. An apparatus as claimed in claim 2 , wherein the detection module further generates a third result based ...

Подробнее
Номер записи: 64
04-07-2013 дата публикации

IMAGE PICKUP APPARATUS AND POWER SUPPLY METHOD

Номер: US20130169861A1
Автор: YOSHINO Tetsuma
Принадлежит: SONY CORPORATION

An image pickup apparatus includes an image pickup control portion which includes an image pickup portion and a processing portion performing a process of image picking-up; a position information acquiring portion which acquires position information; a time information acquiring portion which acquires time information; and a power management portion which controls supply of power to the portions, the power management portion and the time information acquiring portion are continuously supplied with power, when the time information corresponds to a predicted use time, the position information acquiring portion is supplied with power, and when the position information is separated from position information of a predetermined place by a predetermined distance or more, a memory for program execution is supplied with power. 1. An image pickup apparatus comprising:an image pickup control portion which includes an image pickup portion and a processing portion performing a process of image picking-up;a position information acquiring portion which acquires position information;a time information acquiring portion which acquires time information; anda power management portion which controls supply of power to the portions,wherein the power management portion and the time information acquiring portion are continuously supplied with power,when the time information corresponds to a predicted use time, the position information acquiring portion is supplied with power, andwhen the position information is separated from position information of a predetermined place by a predetermined distance or more, a memory for program execution is supplied with power.2. The image pickup apparatus according to claim 1 ,wherein when there is a power-on manipulation, the image pickup control portion is supplied with power.3. The image pickup apparatus according to claim 2 ,wherein the predicted use time is calculated with reference to time information accompanying the content picked up by the image ...

Подробнее
Номер записи: 65
11-07-2013 дата публикации

SYSTEMS AND METHODS FOR PRODUCING, SHIPPING, DISTRIBUTING, AND STORING HYDROGEN

Номер: US20130175798A1
Автор: Devine Timothy J.
Принадлежит:

These inventions related to systems and methods for producing, shipping, distributing, and storing hydrogen. In one embodiment, a hydrogen production and storage system includes a plurality of wind turbines for generating electrical power; a power distribution control system for distributing, and converting the electrical power from the wind turbines, a water desalination and/or purification unit which receives and purifies seawater, and an electrolyzer unit that receive electrical power from the power distribution system and purified water from the desalination units and thereby converts the water into hydrogen and oxygen. After its production, hydrogen is stored, transported, and distributed in accordance with various embodiments. 1. (canceled)2. (canceled)3. (canceled)4. (canceled)5. (canceled)6. (canceled)7. (canceled)8. (canceled)9. (canceled)10. (canceled)11. (canceled)12. (canceled)13. (canceled)14. (canceled)15. (canceled)16. (canceled)17. (canceled)18. A method for monitoring , controlling the distributing and the power output of a hydrogen producing wind farm , comprising;a) A power monitoring system that measures the available output power of the wind farm.b) A power control system that receives input from the monitoring system and performs the command and control functions of the wind farm to control the output power of the wind farm;c) A power distribution system that receives input from the monitoring system, which will be use to allocate, balance and route the available power based on a defined computer algorithm to maximize the hydrogen production.d) An electrolyzer control module (one or more) connected to the electrolyzer module(s) to monitor and control the plurality of electrolyzers.19. The control system will be configured to work with both AC and DC input power.20. The control system will contain the necessary electrical transformers , rectifiers , switches , regulators , inverters etc. to provide the optimal power (AC or DC) to the loads that ...

Подробнее
Номер записи: 66
11-07-2013 дата публикации

MOSFET BRIDGE RECTIFIER

Номер: US20130176758A1
Автор: CHEN Isaac Y., HO Jyun-Che, TANG Chien-Fu, TSENG Pei-Kai
Принадлежит: RICHTEK TECHNOLOGY CORPORATION

A bridge rectifier is established by MOSFETs instead of diodes. The MOSFET bridge rectifier includes a voltage detector to detect the voltages of two AC input terminals of the MOSFET bridge rectifier, for identifying the positive and negative half cycles of an AC voltage input to the MOSFET bridge rectifier, thereby accurately controlling the MOSFETs. 1. A MOSFET bridge rectifier comprising:a first AC input terminal and a second AC input terminal, receiving an AC voltage;a DC output terminal providing a DC voltage;a first MOSFET connected between the first AC input terminal and the DC output terminal;a second MOSFET connected between the first AC input terminal and a ground terminal;a third MOSFET connected between the second AC input terminal and the DC output terminal;a fourth MOSFET connected between the second AC input terminal and the ground terminal;a voltage detector connected to the first and second AC input terminals, detecting a first voltage of the first AC input terminal and a second voltage of the second AC input terminal to assert a first detection signal when the first voltage is greater than a first preset value and assert a second detection signal when the second voltage is greater than a second preset value; anda floating gate driver connected to the voltage detector and the first through fourth MOSFETs, switching the first through fourth MOSFETs according to the first and second detection signals.2. The MOSFET bridge rectifier of claim 1 , wherein each of the first and third MOSFETs is an NMOSFET.3. The MOSFET bridge rectifier of claim 1 , wherein the voltage detector comprises:a first pair of resistors serially connected to the first AC input terminal, dividing the first voltage to generate a third voltage;a first comparator connected to the first pair of resistors, comparing the third voltage with a first reference voltage to generate the first detection signal;a second pair of resistors serially connected to the second AC input terminal, ...

Подробнее
Номер записи: 67
18-07-2013 дата публикации

ELECTRIC LOAD CONTROL APPARATUS

Номер: US20130181520A1
Автор: Kurihara Takasuke, Shirasawa Tomiyuki, TSUJI Naotaka, Uemori Toshiyuki
Принадлежит: HONDA MOTOR CO., LTD.

An electric load control apparatus includes an inverter connected to input terminals of an electric storage device, and having output terminals connected via output electric power lines to an electric motor. The inverter includes switching elements, which are controlled to energize the electric motor with electric power stored in the electric storage device. A noise removal filter disposed on at least a portion of the output electric power lines includes a bendable sheet made of a magnetic material wound around the output electric power lines, with air gaps disposed between coiled sheet layers of the wound sheet. 1. An electric load control apparatus comprising:an electric storage device;an electric power converter connected to the electric storage device through input electric power lines, and connected through output electric power lines to an electric load, the electric power converter having switching elements, which are controlled to energize the electric load with electric power stored in the electric storage device; anda noise removal filter including a bendable sheet made of a magnetic material wound around at least a portion of at least one of the input electric power lines and the output electric power lines, with air gaps disposed between coiled sheet layers of the wound sheet.2. The electric load control apparatus according to claim 1 , wherein the bendable sheet is coiled in at least two layers around the electric power line from a starting end thereof.3. The electric load control apparatus according to claim 1 , wherein the bendable sheet comprises an adhesive layer on one side of the bendable sheet claim 1 , the air gaps being provided by coiled layers of the adhesive layer of the bendable sheet claim 1 , which is wound around at least the portion of at least one of the input electric power lines and the output electric power lines.4. The electric load control apparatus according to claim 3 , wherein the bendable sheet comprises a web-shaped sheet ...

Подробнее
Номер записи: 68
18-07-2013 дата публикации

THREE-PHASE AC TO DC CONVERTER AND AIR CONDITIONING APPARATUS USING THREE-PHASE AC TO DC CONVERTER

Номер: US20130181646A1
Автор: Takata Masaki, Takata Shigeo
Принадлежит: Mitsubishi Electric Corporation

A three-phase AC to DC converter includes a three-phase AC power supply, a three-phase rectifier bridge circuit that is connected to the three-phase AC power supply and includes rectifying devices which are connected in a bridge configuration, a three-phase full-bridge circuit that includes two serially-connected switching devices for each of three phases, the two serially-connected switching devices being connected at an output side of the three-phase rectifier bridge circuit, and includes reverse blocking diodes which are connected in parallel to the respective switching devices, a reactor that connects the three-phase full-bridge circuit to the three-phase AC power supply, a smoothing capacitor connected to an output side of the three-phase full-bridge circuit, DC voltage detection means that detects an output voltage, power supply phase detection means that detects a power supply phase of the three-phase AC power supply, and pulse width modulator that outputs PWM signals which control the switching devices. 1. A three-phase AC to DC converter comprising:a three-phase AC power supply;a three-phase rectifier bridge circuit that is connected to the three-phase AC power supply, and that includes rectifying devices which are connected in a bridge configuration between two DC buses;a three-phase full-bridge circuit that includes two serially-connected switching devices for each of three phases, the two serially-connected switching devices being connected between the DC buses at an output side of the three-phase rectifier bridge circuit, and that includes reverse blocking diodes which are connected in parallel to the respective switching devices;a reactor that connects a connection point between the two serially-connected switching devices of each phase to a corresponding phase of the three-phase AC power supply;a smoothing capacitor connected between the DC buses at an output side of the three-phase full-bridge circuit;DC voltage detection means that detects an output ...

Подробнее
Номер записи: 69
18-07-2013 дата публикации

Electric Power Supply System and Controller of Vehicle that can Supply Electric Power to Outside

Номер: US20130184968A1
Автор: Kumano Kengo, ORYOJI Kazuhiro, SHIRAISHI Takuya, SUKEGAWA Yoshihiro
Принадлежит: Hitachi, Ltd.

Provided is an electric power supply system which includes a plurality of electric power sources and supplies electric power corresponding to demanded electric power. In supplying electric power to the outside from a vehicle which constitutes one of the electric power sources, the electric power supply system realizes generation of power by an engine at high efficiency while maintaining a balance between power income and expenditure. In supplying electric power from the vehicle, an amount of electric power generated by an engine mounted on the vehicle is decided based on information supplied from an external device such as transition over time in an amount of electric power demand including future prediction and transition over time in an amount of electric power which is suppliable from other electric power sources including future prediction. 1. An electric power supply system comprising a plurality of electric power sources and being configured to switch the electric power sources in supplying electric power corresponding to demanded electric power , wherein the electric power sources include the supply of electric power from a vehicle.2. The electric power supply system according to claim 1 , wherein a controlled variable of an engine mounted on the vehicle is decided based on information supplied from an external device electrically connected to the vehicle in performing the supply of electric power from the vehicle.3. The electric power supply system according to claim 2 , wherein the information supplied from the external device includes either one of transition over time in an amount of electric power demand including future prediction and transition over time in an amount of electric power which is suppliable from other electric power sources including future prediction.4. The electric power supply system according to claim 2 , wherein the controlled variable of the engine is an exhaust gas recirculation amount claim 2 , and the engine is controlled such ...

Подробнее
Номер записи: 70
25-07-2013 дата публикации

Fishtail Packaging and Cooling

Номер: US20130187453A1
Автор: Flett Fred, Hudak Joseph
Принадлежит: QUANTUM FUEL SYSTEMS TECHNOLOGIES WORLDWIDE INC.

A combined battery charger and motor driver circuit assembly includes a plurality of power transistors arranged as a planar array, a cold plate configured to couple heat from each of the transistors in the array, a conductive power coupling fitting (also termed a bus bar), at least one capacitor, and a ferrite bead filter surrounding a necked section of the bus bar. The bus bar has a plurality of individually electrically conductive layers, each two of the layers being separated by an insulating layer, each conductive layer providing a plurality of contacts, the contacts in a layer configured to provide electrical contact, in the alternative, for power transistor collectors or power transistor emitters. The laminated bus bar is extended to form a fishtail shape along a specified section distal to the power transistors. The fish tail section terminates in two electrical contacts configured to provide electrical contact via discrete conductors to respective positive and negative battery terminals. A top surface of the capacitor is conductive at least in part. The capacitor makes electrical and thermal contact with a conductor of the laminated bus bar distal to the transistor array. A bottom surface of the capacitor is also conductive at least in part and is in electrical contact with a conductor of the laminated bus bar proximal to the transistor array. 1. A device comprising:a plurality of power transistors, arranged as a planar array;a cold plate, configured to couple heat from each of the transistors in the array;a generally flat conductive power coupling fitting, also termed herein a bus bar, having a plurality of individually electrically conductive layers, each two of the layers being separated by an insulating layer, each conductive layer providing a plurality of contacts, the contacts in a layer configured to provide electrical contact, in the alternative, for power transistor collectors or power transistor emitters, of said bus bar being necked along a ...

Подробнее
Номер записи: 71
25-07-2013 дата публикации

Method of balancing an electrical network comprising several generators, distributors and installations

Номер: US20130187455A1
Автор: Jean-Jacques Carrillo
Принадлежит: NOVATEC SA

A method of balancing an electrical distribution system including several generators implements a network divided into several subnetworks powered by ring-like swappers. The balancing of the network between the various generators available is obtained through switchings of subnetworks selected as a function of the order of switching of the swappers.

Подробнее
Номер записи: 72
25-07-2013 дата публикации

Sourcing and Securing Dual Supply Rails of Tamper Protected Battery Backed Domain

Номер: US20130187456A1
Автор: Bilhan Erkan
Принадлежит: TEXAS INSTRUMENTS INCORPORATED

This invention is a System On a Chip (SOC) requiring two tamper resistant externally generated power supplies. A first, higher power supply powers I/O and analog circuits. A second, lower power supply powers digital circuits and memory. A first voltage monitor circuit powered by said first power supply generates a first output signal when the first power supply is below an operational limit high level. A second voltage monitor circuit powered by said first power supply indicates when the second power supply is above an operational high limit level. A power switch is controlled by the first voltage monitor circuit. This power switch connects the second power supply and second load when closed and isolates them when open. Thus the memory cannot be accessed when the I/O and analog power supply is out of specification. 1. An electronic system comprising:a first power supply having a first voltage level;a second power supply having a second voltage level lower than said first voltage level;a first load connected to be powered by said first power supply;a first voltage monitor circuit connected to be powered by said first power supply, said first voltage monitor circuit generating a first output signal indicating whether said first voltage level of said first power supply is within predetermined limits;a second voltage monitor circuit connected to be powered by said first power supply, said second voltage monitor circuit generating a second output signal indicating whether said second voltage level of said second power supply is within predetermined limits;a second load;a power switch connected to said second power supply, said first voltage monitor circuit and said second load, said power switch having a closed state connecting said second power supply to said second load if said first output signal indicates said first voltage level of said first power supply is within said predetermined limits and having an open state isolating said second power supply to said second ...

Подробнее
Номер записи: 73
25-07-2013 дата публикации

INTELLIGENT ARBITRATION OF POWER LINE BASED COORDINATING SIGNALS BETWEEN MULTIPLE UPS BUSES WIHTOUT ANY AUXILIARY SIGNALS

Номер: US20130187467A1
Автор: Chen Xian, Eschhofen Kevin Kim
Принадлежит: Liebert Corporation

A multiple UPS system has a plurality of UPS subsystems with a separate UPS data communications bus coupling a controller of each UPS subsystem to an associated controller of an associated tie cabinet. The multiple UPS system further includes a data communications tie bus that couples the controllers of the tie cabinets to each other. The controllers of the tie cabinets arbitrate power line based coordinating signals between the UPS buses without the use of auxiliary signals. 1. A multiple uninterruptible power supply (“UPS”) system , comprising:a. a plurality of UPS subsystems with a separate UPS data communications bus coupling a controller of each UPS subsystem to an associated controller of an associated tie cabinet;b. a data communications tie bus that couples the controllers of the tie cabinets to each other;c. the controllers of the tie cabinets arbitrating power line based coordinating signals between the UPS data communication buses without the use of auxiliary signals.2. The system of wherein the controller of each tie cabinet monitors the UPS data communications bus to which it is coupled and the data communications tie bus for qualified power line based coordinating signals and passes through a qualified power line based coordinating signal it first receives from either the UPS data communications bus to which it is coupled or the data communications tie bus to the other of the UPS data communications bus to which it is coupled or the data communications tie bus and does not pass a power line based coordinating signal from the other bus to the bus from which that controller first received the qualified power line based coordinating signal as long as that controller continues to receive qualified power line based coordinating signals from the bus from which that controller first received the qualified power line based coordinating signal.3. The system of wherein when the controller of any tie cabinet that has been receiving qualified power line based ...

Подробнее
Номер записи: 74
25-07-2013 дата публикации

CAPACITIVE LOAD DRIVING APPARATUS AND METHOD THEREOF

Номер: US20130187567A1
Автор: LI Chih-Ping
Принадлежит: FSP TECHNOLOGY INC.

A load driving apparatus and a method thereof are provided. The provided load driving apparatus includes a first rectification unit, a first conversion unit and a second conversion unit. The first rectification unit is configured to receive and rectify an AC voltage, so as to output a first DC voltage. The first conversion unit is coupled to the first rectification unit, and is configured to receive and convert the first DC voltage, so as to output a second DC voltage. The first conversion unit is further configured to adjust the second DC voltage according to a feedback signal relating to the second DC voltage. The second conversion unit is coupled to the first conversion unit, and is configured to receive and convert the second DC voltage, so as to output a third DC voltage with a constant current to drive a first capacitive load. 1. A load driving apparatus , comprising:a first rectification unit, configured to receive and rectify an AC voltage, so as to output a first DC voltage;a first conversion unit, coupled to the first rectification unit, configured to receive and convert the first DC voltage, so as to output a second DC voltage, wherein the first conversion unit is further configured to adjust the second DC voltage according to a feedback signal relating to the second DC voltage; anda second conversion unit, coupled to the first conversion unit, configured to receive and convert the second DC voltage, so as to output a third DC voltage with a constant current to drive a first capacitive load.2. The load driving apparatus according to claim 1 , wherein the first conversion unit comprises:a power factor correction (PFC) converter, coupled to the first rectification unit, configured to perform a power factor correction on the output of the first rectification unit in response to a correction signal;an isolation transformer, having a primary side and a secondary side, wherein a first terminal of the primary side is coupled to an output of the PFC converter;a ...

Подробнее
Номер записи: 75
25-07-2013 дата публикации

Devices and methods for converting alternating current (ac) power to direct current (dc) power

Номер: US20130188398A1
Автор: Zafarullah KHAN
Принадлежит: Itron Inc

Methods, circuit designs, systems, and devices for the conversion of high voltage alternating current (AC) to low voltage, high current direct current (DC) are described. An exemplary apparatus includes a rectifier for receiving a high voltage AC line power input and for outputting a full wave, high voltage DC, a gating component coupled to the rectifier for receiving the high voltage DC output by the rectifier, wherein the gating component is configured to gate the high voltage DC by turning on at a zero crossing level and turning off when the high voltage DC exceeds a preset voltage threshold and wherein the output of the gating component is an intermediate voltage DC capped by the preset voltage threshold, and a DC-DC converter coupled to the gating component for receiving the intermediate voltage DC output by the gating component, wherein the DC-DC converter is configured to step down and smooth out the intermediate voltage DC to a desired high current, low voltage DC output.

Подробнее
Номер записи: 76
25-07-2013 дата публикации

POWER SOURCE DEVICE, ELECTRONIC DEVICE, IMAGE FORMING APPARATUS, AND POWER SOURCE CONTROL METHOD

Номер: US20130188979A1
Автор: Okada Norikazu
Принадлежит:

A power source device includes: a first voltage generating unit that includes a power storage unit storing power based on power supplied from a power source and generates a voltage to be supplied to a first load based on the power supplied from the power source; and a second voltage generating unit that generates a voltage to be supplied to a second load based on the power stored in the power storage unit when the first voltage generating unit is controlled to stop generation. 1. A power source device comprising:a first voltage generating unit that includes a power storage unit storing power based on power supplied from a power source and generates a voltage to be supplied to a first load based on the power supplied from the power source; anda second voltage generating unit that generates a voltage to be supplied to a second load based on the power stored in the power storage unit when the first voltage generating unit is controlled to stop generation.3. The power source device according to claim 2 , wherein the second operation mode is a power saving mode to reduce power consumption in a stand-by state of an electronic device in which the power source device is provided.4. The power source device according to claim 1 , further comprising:a first switching unit that turns on and off a path to supply power from the first voltage generating unit to the first load; anda second switching unit that turns on and off a path to supply a voltage from the first voltage generating unit to the second voltage generating unit, whereinwhen the first voltage generating unit is controlled to stop generation, the first switching unit is turned form on to off and the second switching unit is turned from off to on.5. The power source device according to claim 4 , further comprising a third switching unit that turns on and off a path to supply power from the power source to the first voltage generating unit claim 4 , whereinthe third switching unit is turned to off to stop generation by ...

Подробнее
Номер записи: 77
01-08-2013 дата публикации

LIGHT SOURCE APPARATUS, ELECTRONIC DEVICE, AND CONTROL METHODS THEREFOR

Номер: US20130194318A1
Автор: Miyagi Tatsuya
Принадлежит: CANON KABUSHIKI KAISHA

A light source device including: a boost-type conversion unit configured to convert an input AC voltage into a DC voltage; a detection unit configured to detect a voltage value of the input AC voltage; and a control unit configured to control the brightness of a light source unit on the basis of an input image signal. The control unit changes the timing of brightness change of the light source unit according to a voltage value detected by the detection unit. 1. A light source device comprising:a boost-type conversion unit configured to convert an input AC voltage into a DC voltage;a detection unit configured to detect a voltage value of the input AC voltage; anda control unit configured to control a brightness of a light source unit on the basis of an input image signal, whereinthe control unit changes a timing of brightness change of the light source unit according to a voltage value detected by the detection unit.2. The light source device according to claim 1 , whereinthe conversion unit has:a rectification circuit that performs full-wave rectification of the inputted AC voltage; anda boost-type power factor correction circuit that converts the full-wave-rectified AC voltage into a DC voltage, andthe detection unit detects a voltage value of a voltage to be inputted to the power factor correction circuit.3. The light source device according to claim 1 , whereinthe control unit changes the timing of brightness change of the light source unit according to a result of comparison of the voltage value detected by the detection unit and a threshold.4. The light source device according to claim 3 , whereinwhen there is a request to execute brightness increase control of the light source unit in a period in which the voltage value detected by the detection unit exceeds the threshold, the control unit executes the brightness increase control after this period.5. The light source device according to claim 4 , whereinthe threshold is a value determined on the basis of a ...

Подробнее
Номер записи: 78
01-08-2013 дата публикации

CONTROL DEVICE OF A SWITCHING POWER SUPPLY

Номер: US20130194845A1
Автор: Adragna Claudio, Bianco Alberto
Принадлежит:

A control device of a switching converter controls the closing and opening of a switch of the converter that regulates the operation of an inductor. The control device includes a ramp voltage generator, a switch control circuit configured to close the switch based on a comparison of the ramp voltage with a first signal and a generator control circuit configured to control the ramp voltage generator based on a value of a second signal representative of a current flowing through the inductor of the converter, in comparison with the value of a third signal. 1. A device , comprising: an input terminal configured to receive an alternating current supply voltage,', 'an output terminal configured to provide a regulated direct current voltage,', 'an inductor coupled between the input terminal and the output terminal, and', 'a switch coupled between the inductor and a circuit ground; and, 'a switching converter having a ramp voltage generator circuit configured to generate a ramp voltage,', 'a switch control circuit configured to open the switch based on a comparison of the ramp voltage with a first voltage, and', 'a generator control circuit configured to receive an input signal representative of a current flowing through the inductor of the converter, and enable the ramp voltage generator circuit based on a comparison of the input signal with a second signal., 'a control device configured to control closing and opening of said switch, said control device having2. A device according to claim 1 , wherein the second signal is a reference signal.3. A device according to claim 1 , wherein the converter comprises a rectifier circuit configured to rectify the alternating current supply voltage and a capacitor arranged in parallel with the rectifier circuit claim 1 , and wherein the second signal is representative of a difference of a reference signal and another signal representative of a voltage across said capacitor.4. A device according to claim 1 , wherein the converter ...

Подробнее
Номер записи: 79
01-08-2013 дата публикации

Feed Forward Control for a Cyclo-Converter

Номер: US20130194850A1
Автор: Familiant Yakov, Harrison Michael John, Lee Kevin
Принадлежит:

A three-phase resonant cyclo-converter, the cyclo-converter comprising a feed forward control module arranged to develop a feed forward signal for controlling a switching frequency of the cyclo-converter dependent on conditions of a power supply arranged to provide power to the cyclo-converter. 1. A three-phase resonant cyclo-converter , the cyclo-converter comprising a feed forward control module arranged to develop a feed forward signal for controlling a switching frequency of the cyclo-converter dependent on conditions of a power supply arranged to provide power to the cyclo-converter.2. The three-phase resonant cyclo-converter of claim 1 , further comprising:a phase locked loop module arranged to develop an input voltage signal based on the three-phase input voltage;wherein the feed forward control module is arranged to develop the feed forward signal based on the developed input voltage signal; anda switching signal generator arranged to develop a switching signal that controls the switching frequency of the cyclo-converter, and further arranged to modify the switching signal based on the developed feed forward signal.3. The cyclo-converter of claim 2 , wherein the modified switching signal is based on a determined high voltage switching sequence claim 2 ,4. The cyclo-converter of claim 2 , wherein the feed forward control module is arranged to apply a direct relationship between the developed input voltage and a desired output voltage to develop the feed forward signal.5. The cyclo-converter of claim 2 , wherein the feed forward control module is arranged to apply pre-determined polynomial values to an input voltage signal to develop the feed forward signal claim 2 , wherein the polynomial values are based on a function of a change in input voltage signal and the switching frequency of the cyclo-converter.6. The cyclo-converter of claim 2 , further comprising a storage module arranged to store a look up table claim 2 , wherein the feed forward control module ...

Подробнее
Номер записи: 80
01-08-2013 дата публикации

POWER SOURCE, POWER FAILURE DETECTION APPARATUS, AND IMAGE FORMING APPARATUS

Номер: US20130195497A1
Автор: Shimura Yasuhiro
Принадлежит: CANON KABUSHIKI KAISHA

A power source includes a rectifying unit configured to full-wave rectify an AC voltage to be input, a first and second converter configured to convert the voltage rectified by the rectifying unit, a zero cross detection unit configured to detect a zero cross of the AC voltage, a voltage detection unit configured to detect the AC voltage, a first capacitance element connected across a potential after being subjected to rectification by the rectifying unit and a ground, a first discharging resistor configured to discharge electric charges charged in the first capacitance element, a first switch unit configured to cut off a current flowing to the first discharging resistor and a stopping unit configured, in a case where the AC voltage is detected by the voltage detection unit and the detected voltage is smaller than a threshold value, to stop the operation of the second converter. 1. A power source comprising:a rectifying unit configured to full-wave rectify an alternating current (AC) voltage to be input;a first converter and a second converter configured to convert the voltage rectified by the rectifying unit;a zero cross detection unit configured to detect a zero cross of the AC voltage;a voltage detection unit configured to detect the AC voltage;a first capacitance element connected across a potential after being subjected to rectification by the rectifying unit and a ground;a first discharging resistor configured to discharge electric charges charged in the first capacitance element;a first switch unit configured to cut off a current flowing to the first discharging resistor; anda stopping unit configured, in a case where the AC voltage is detected by the voltage detection unit and the detected voltage is smaller than a threshold value, to stop the operation of the second converter.3. The power source according to claim 1 , further comprising:a second capacitance element connected across two lines to which the AC voltage is supplied; anda second discharging ...

Подробнее
Номер записи: 81
08-08-2013 дата публикации

ELECTRONIC CONTROL DEVICE

Номер: US20130200698A1
Автор: KUNO Ryotaro
Принадлежит: Denso Corporation

An internal power circuit lowers a battery voltage supplied always from an external side to generate a standby power voltage. A timer continues to measure an elapse of time in a standby state, after a main relay is turned off and supply of a power voltage is interrupted. A measured time data of the timer is saved to a save register during a time measurement operation of the timer. When a stop condition for stopping the time measurement operation of the timer is satisfied, a control circuit stops the operation of the internal power circuit. When the main relay is turned on, the internal power circuit is activated to start its operation again by the control circuit so that the measured time data saved to the save register is restored to the timer. 1. An electronic control device comprising:an internal power circuit, which is supplied with a first power voltage always from an external side and a second power voltage through a power switch from the external side and generates a third power voltage by lowering the first power voltage;a control circuit, which controls an operation of the internal power circuit;a timer, which is supplied with the third power voltage and measures at least a time period of turn-off of the power switch; anda data memory circuit, which is supplied with the first power voltage and stores data,wherein, while the timer performs a time measuring operation after the power switch is turned off, the data memory circuit saves therein a measured time data of the timer,wherein, when a stop condition for stopping the time measuring operation of the timer is satisfied, the control circuit stops an operation of the internal power circuit, andwherein, when the power switch is turned on, the control circuit starts the operation of the internal power circuit to restore the measured time data saved in the data memory circuit to the timer.2. The electronic control device according to claim 1 , wherein:the data memory circuit saves the measured time data at ...

Подробнее
Номер записи: 82
08-08-2013 дата публикации

POWER DISTRIBUTION DEVICE, POWER DISTRIBUTION SYSTEM AND METHOD FOR SUPPRESSING INRUSH CURRENT

Номер: US20130200701A1
Автор: YUASA Kentarou
Принадлежит: FUJITSU LIMITED

A power distribution device includes power distribution ports that are connected to electric devices, respectively, and distribute a power supply signal to the electric devices, an inrush current suppressing circuit that collectively suppresses an inrush current on an upstream side ahead of the electric devices, a controller that detects an occurrence of the inrush current and outputs a switching instruction, and a switch that switches, based on the switching instruction, a path for the power supply signal to a first power supply path that causes the power supply signal to be input to the inrush current suppressing circuit when the inrush current has occurred, and that switches, on based on the switching instruction, the path for the power supply signal to a second power supply path that causes the power supply signal to bypass the inrush current suppressing circuit when the inrush current has not occurred. 1. A power distribution device comprising:a plurality of power distribution ports that are connected to electric devices, respectively, and distribute a power supply signal to the electric devices;an inrush current suppressing circuit that collectively suppresses an inrush current on an upstream side ahead of the electric devices;a controller that detects an occurrence of the inrush current and outputs a switching instruction; anda switch that switches, based on the switching instruction, a path for the power supply signal to a first power supply path that causes the power supply signal to be input to the inrush current suppressing circuit when the inrush current has occurred, and that switches, on based on the switching instruction, the path for the power supply signal to a second power supply path that causes the power supply signal to bypass the inrush current suppressing circuit when the inrush current has not occurred.2. The power distribution device according to claim 1 ,wherein when the controller detects at least one of the following cases: a case where a ...

Подробнее
Номер записи: 83
08-08-2013 дата публикации

Method to reduce system idle power through system VR output adjustments during Soix states

Номер: US20130200705A1
Автор: Browning David W.
Принадлежит:

An electronic device includes a power control circuit to generate a power mode signal and a plurality of voltage regulators to receive the power mode signal. Each voltage regulator reduces an output voltage in response to the power mode signal, and the reduced output voltage of each voltage regulator is used to power a different circuit of or function to be performed in the electronic device. 1. An electronic device comprising:a power control circuit to generate a power mode signal; anda plurality of voltage regulators to receive the power mode signal,wherein one or more of the voltage regulators is to reduce an output voltage in response to the power mode signal and wherein the reduced output voltage of the one or more voltage regulators is to power a different circuit of or function to be performed in the electronic device.2. The electronic device of claim 1 , wherein the voltage regulators are to power circuits or functions different from a central processing circuit or function of the device.3. The electronic device of claim 1 , wherein the output voltage of the one or more voltage regulators is to be reduced during an idle period of an active power state in response to the power mode signal.4. The electronic device of claim 1 , wherein the power mode signal is to be generated by the power control circuit when the electronic device enters a predetermined power state.5. The electronic device of claim 4 , wherein the predetermined power state is a reduced power state.6. The electronic device of claim 5 , wherein the reduced power state is an idle state.7. The electronic device of claim 1 , wherein the output voltage of the one or more voltage regulators is to be reduced to within a same predetermined voltage range.8. The electronic device of claim 1 , wherein the output voltage of a first voltage regulator is to be reduced to a first predetermined voltage range and the output voltage of a second voltage regulator is to be reduced to a second predetermined voltage ...

Подробнее
Номер записи: 84
08-08-2013 дата публикации

Energy management system and method for controlling high current draws from variable current devices commonly connectable to an electrical circuit

Номер: US20130200706A1
Автор: Cobb Robert, Webster Joseph
Принадлежит:

An energy management controller for controlling and limiting the time during which high current draws may be made by one or more of a plurality of single serve coffee brewers that are commonly connected to the same circuit and which include heater constructions that require and draw high power at certain times during operation, and require and draw lower power at other times. It includes one controller board, connected to the primary brewer to complete a circuit, and which board includes heat and wait timer functions to monitor the power status usage with respect to all of the brewers. 1. An energy management control system for controlling and limiting the time during which high current draws may be made by at least a high current portion of a defined primary device from among a plurality of devices commonly connectable to the same electrical circuit for drawing high current therefrom , wherein at least such defined primary device has an operating cycle during a portion of which it draws a higher current for operation , comprising:a controller construction electrically connectable to such primary device to complete a circuit for controlling the provision of high power from the electrical circuit to the high current portion of such primary device, said controller construction including;a device information portion for receiving power usage status information that may be supplied thereto regarding certain others of such devices commonly connected to the same electrical circuit, certain of which power usage status information is defined to be representative of a high power usage state for a given device of such certain other devices and other of which power usage status information is defined to be representative of a lower power usage state for a given device of such certain other devices;an arbitration portion associated with said device information portion and including a determination portion thereof operable to determine in accordance with said power usage status ...

Подробнее
Номер записи: 85
08-08-2013 дата публикации

SYSTEMS AND METHODS FOR PROVIDING PROTECTION CIRCUITRY TO SELECTIVELY HANDLE MULTIPLE CABLE-TYPES THROUGH THE SAME PORT

Номер: US20130200726A1
Автор: Bhargava Rishabh, Farrar Doug M.
Принадлежит: Apple Inc.

This is generally directed to providing protection circuitry to selectively handle power-providing cables and headset cables that can couple to the same port of an electronic device. In some embodiments, the device can include a Headset Rx chip to communicate with the headset cable and a Power Rx chip to communicate with the power-providing cable. As the Headset Rx chip and the Power Rx chip can be coupled to the same contact of the device's port, these chips may prevent one another from operating correctly or may damage one another. Accordingly, in some embodiments, it can be determined whether a headset cable or a power-providing cable is coupled to the device. When a headset cable is coupled to the device, the protection circuitry can disconnect the Power Rx chip. Similarly, when a power-providing cable is coupled to the device, the protection circuitry can disconnect the Headset Rx chip. 1. An electronic device comprising:a port, the port comprising a first contact and a second contact;a processor coupled to the first contact, wherein the processor analyzes the first contact to determine when a cable having a circuit is connected at the port;a power control circuit coupled to the second contact, the power control circuit to receive a disconnect signal from the processor;a non-power providing cable receive circuit (“Headset Rx”) coupled to the second contact, wherein the processor instructs the Headset Rx to attempt to authenticate the cable circuit, and the Headset Rx authenticates the cable circuit when the cable circuit is a non-power providing cable transmit circuit; anda power-providing cable receive circuit (“Power Rx”) coupled between the power control circuit and the processor, wherein the processor instructs the Power Rx to attempt to authenticate the cable circuit, and the Power Rx authenticates the cable circuit when the cable circuit is a power providing cable transmit circuit;wherein when the power control circuit receives a disconnect signal from ...

Подробнее
Номер записи: 86
08-08-2013 дата публикации

AC-DC CONVERTER WITH ADAPTIVE CURRENT SUPPLY MINIMISING POWER CONSUMPTION

Номер: US20130201735A1
Автор: Bourne Paul, Murfett David, Tracy Philip
Принадлежит: HENDON SEMICONDUCTORS PTY LTD

A circuit arrangement with standby mode minimising power and/or current consumption having a mains AC power supply terminals and an active circuit capable of converting said mains AC power to lower voltage DC levels for operating in an active mode or in a standby mode as required by an appliance such that the selection of the current sensing resistor value for said current sensing resistor limits the maximum peak current through the FET so that the current sensing resistor arrangement is capable of providing significant increases in a steeper rise time of the current at around mains AC power supply zero crossing, so that current is pulled high while the mains AC power supply voltage is low. 1. A circuit arrangement with standby mode minimising power and/or current consumption having a mains AC power supply terminals and an active circuit capable of converting said mains AC power to lower voltage DC levels for operating in an active mode or in a standby mode as required by an appliance , said circuit including;one or more rectifying diodes to provide a rectified AC output from the mains AC supply;a main voltage detection arrangement in communication with said rectified AC signal and in series with an AC mains supply rated resistor, wherein said resistor supplies output to a first bandgap circuitry that with a selected defined voltage level provides a regulatable current path;said regulated current path including a gate to a field effect transistor (FET) controlled electronic switch with the drain of the FET connected to the rectified AC signal and the source of the FET connected to a load circuit, said load circuit having at least a capacitor and a load;said mains voltage detection arrangement also including a second bandgap circuit providing a low DC voltage detector to detect when a selectable voltage has been achieved across a load so that once the selectable voltage has been achieved this communicates with the first band gap circuit to lower the mains detection ...

Подробнее
Номер записи: 87
08-08-2013 дата публикации

POWER FACTOR CONTROL OF A CYCLO-CONVERTER

Номер: US20130201738A1
Автор: Familiant Yakov, Harrison Michael John, Lee Kevin
Принадлежит: Eaton Industries Company

A three-phase resonant cyclo-converter comprising a power control module, wherein the power control module is arranged to develop a plurality of repeating switching periods within a cycle, the power control module further arranged to: control the length of a first switching period in the cycle to adjust the power flow, and control the relative length of two or more further switching periods in the cycle to adjust the power factor, wherein the relative length is controlled based on a cross-product of voltage and current values associated with the further switching periods. 1. A three-phase resonant cyclo-converter comprising a power control module , wherein the power control module is arranged to develop a plurality of repeating switching periods within a cycle , the power control module further arranged to: control the length of a first switching period in the cycle to adjust the power flow , and control the relative length of two or more further switching periods in the cycle to adjust the power factor , wherein the relative length is controlled based on a cross-product of voltage and current values associated with the further switching periods.2. The cyclo-converter of claim 1 , wherein the power control module comprises a power factor control module claim 1 , the power factor control module arranged to adjust a ratio of the further switching periods based on a cross product of derived voltage and current waveforms associated with a first and a second of three input phase voltage signals claim 1 , the power factor control module comprising:a voltage development module arranged to develop voltage waveforms based on the input phase voltage signals; anda current synthesizer module arranged to synthesize current waveforms based on a resonant current of the cyclo-converter measured during the switching of the first and second input phase voltage signals.3. The cyclo-converter of claim 2 , wherein the voltage development module is further arranged to develop the voltage ...

Подробнее
Номер записи: 88
15-08-2013 дата публикации

HIGH RELIABILITY POWER OVER ETHERNET

Номер: US20130207454A1
Автор: Stellick Daniel
Принадлежит: ALLIED TELESIS HOLDINGS KABUSHIKI KAISHA

A method includes receiving a signal to maintain uninterrupted power to a device over a power over Ethernet line. The power over Ethernet line is configured to carry data and power. Power delivery is maintained for the device regardless of a power disruptive event associated with a power source device. Carrying the power to the device over the power over Ethernet line is interrupted in absence of the receiving the signal. According to one embodiment, the signal is generated in response to a user command or it may be generated from the device automatically. The signal may classify the device as a critical device. The power disruptive event may include initialization of a data path, alteration to a data path associated with the power over Ethernet line, a software update associated with the power source device, reset of power source device, etc. 1. A method comprising:receiving a signal to maintain uninterrupted power to a device over a line, wherein said line is configured to carry data and power; andmaintaining power to said device over said line during a power disruptive event associated with a power source device, wherein said power to said device over said line is interrupted in absence of said receiving said signal.2. The method as described by claim 1 , wherein said signal is generated in response to a user command.3. The method as described by claim 1 , wherein said power disruptive event comprises initialization of a data path.4. The method as described by claim 1 , wherein said power disruptive event comprises alteration to a data path associated with said line.5. The method as described by claim 1 , wherein said power disruptive event comprises a software update associated with said power source device.6. The method as described by further comprising:transmitting handshaking signals via said line coupling said device to said power source device, wherein said handshaking signals comprise information associated with a data path for transmission of data ...

Подробнее
Номер записи: 89
15-08-2013 дата публикации

Imputed dc link (idcl) cell based power converters and control thereof

Номер: US20130207471A1
Автор: Amrit Lyer, Anish Prasai, Deepakraj M. Divan, Jorge Hernendez, Rajendra Prasad Kandula, Rohit Moghe
Принадлежит: Georgia Tech Research Corp

Power flow controllers based on Imputed DC Link (IDCL) cells are provided. The IDCL cell is a self-contained power electronic building block (PEBB). The IDCL cell may be stacked in series and parallel to achieve power flow control at higher voltage and current levels. Each IDCL cell may comprise a gate drive, a voltage sharing module, and a thermal management component in order to facilitate easy integration of the cell into a variety of applications. By providing direct AC conversion, the IDCL cell based AC/AC converters reduce device count, eliminate the use of electrolytic capacitors that have life and reliability issues, and improve system efficiency compared with similarly rated back-to-back inverter system.

Подробнее
Номер записи: 90
15-08-2013 дата публикации

CONVERTER FOR HVDC TRANSMISSION AND REACTIVE POWER COMPENSATION

Номер: US20130208514A1
Автор: Davidson Colin Charnock, Okaeme Nnamdi, Trainer David
Принадлежит: ALSTOM Technlogy Ltd

A power electronic converter for use in high voltage direct current power transmission and reactive power compensation comprises a plurality of switching elements interconnecting in use a DC network and one or more AC networks, the plurality of switching elements being controllable in use to facilitate power conversion between the AC and DC networks, wherein in use, the plurality of switching elements are controllable to form one or more short circuits within the power electronic converter so as to define one or more primary current flow paths, the or each primary current flow path including a respective one of the AC networks and the power electronic converter and bypassing the DC network. 1. A power electronic converter for use in high voltage direct current power transmission and reactive power compensation comprising a plurality of switching elements interconnecting in use a DC network and one or more AC networks , the plurality of switching elements being controlled in use to form one or more short circuits within the power electronic converter so as to define one or more primary current flow path including a respective one of the AC networks and the power electronic converter and bypassing the DC network , characterized in that the switching elements are forming at least one phase element including two-parallel-connected sets of series-connected switching elements to interconnect in use an AC voltage and a DC voltage , a junction between the series-connected switching elements of each set of series-connected switching elements defining an AC terminal for connection to the AC network , wherein an auxiliary converter is connected in parallel or in series with the or each phase element , the auxiliary converter acting as a waveform synthesizer to modify a DC voltage presented to the DC side of the or each phase element , the auxiliary converter and the phase element thus forming a single phase converter-limb.2. (canceled)3. (canceled)4. (canceled)5. (canceled)6. ...

Подробнее
Номер записи: 91
22-08-2013 дата публикации

METHOD AND CONTROLLER FOR DEVICE POWER STATE CONTROL

Номер: US20130214600A1
Автор: Van De Poel Dirk
Принадлежит: THOMSON LICENSING

A method and a controller for power state control of a device that is connected to two or more other devices are described. Also described are a method and a controller for configuring the power state control. Power states of related devices among the two or more other devices are monitored. In case all related devices among the two or more other devices are in a low power mode, the device is switched to a low power mode. Alternatively, in case all related devices among the two or more other devices are in a low power mode, the device is switched to a normal power mode. Which of the other devices are related devices is determined in a configuration procedure. 1. A method for controlling a power state of a device , the device being connected to two or more other devices , the method comprising the steps of:monitoring power states of related devices among the two or more other devices; andin case all related devices among the two or more other devices are in a low power mode, switching the device to a low power mode.2. The method according to claim 1 , further comprising the steps of:when in the low power mode, monitoring whether a related device among the two or more other devices enters a normal power mode; andswitching the device to a normal power mode.3. A method for controlling a power state of a device claim 1 , the device being connected to two or more other devices claim 1 , the method comprising the steps of:monitoring power states of related devices among the two or more other devices; andin case all related devices among the two or more other devices are in a low power mode, switching the device to a normal power mode.4. The method according to claim 3 , further comprising the steps of:when in the normal power mode, monitoring whether a related device among the two or more other devices enters a normal power mode; andswitching the device to a low power mode.5. The method according to claim 1 , wherein information about related devices is retrieved from a ...

Подробнее
Номер записи: 92
22-08-2013 дата публикации

ELECTRONIC DEVICE AND POWER-SOURCE DEVICE

Номер: US20130214606A1
Автор: HASEBE TAKASHI, HIRAGUCHI HIROSHI, TAMURA TOMONOBU, TATSUMOTO YUHEI, Yamamoto Mineo
Принадлежит: Konica Minolta Business Technologies, Inc.

Electronic device comprising: processing unit including accepting part accepting processing request from external device and executing process specified by request; secondary battery connected with external power source; and power-source device transitioning to operating state when request is accepted in waiting state, and transitioning to waiting state when processing unit completes executing process, wherein, in waiting state, power supply from external power source to processing unit is stopped and secondary battery supplies power to accepting part, and in operating state, power is supplied from external power source to processing unit. Power-source device includes controller executing first charge control operation to cause external power source to charge secondary battery when, in operating state, voltage of secondary battery is not higher than threshold, and end executing first charge control operation when transitioning to waiting state, controller updating threshold in response to increase in number of times first charge control operation is executed. 1. An electronic device comprising:a processing unit that includes an accepting part configured to accept a processing request from an external device, and is configured to execute a process specified by the processing request;a secondary battery connected with an external power source; anda power-source device configured to transition from a waiting state to an operating state when the accepting part accepts a processing request while in the waiting state, and then transition from the operating state to the waiting state when the processing unit completes executing the process, wherein, in the waiting state, power supply from the external power source to the processing unit is stopped and the secondary battery supplies power to the accepting part, and in the operating state, power is supplied from the external power source to the processing unit,the power-source device including a controller that is configured ...

Подробнее
Номер записи: 93
22-08-2013 дата публикации

High Efficiency LED Power Supply

Номер: US20130214690A1
Автор: Pollock Charles, Pollock Helen
Принадлежит: TECHNELEC LTD

There is an increasing need for simple and low cost power supplies to control loads such as battery chargers and LEDs. It is the object of this invention to provide an alternative method for the control of current in such loads with very high efficiency and to reduce the variation of load current with supply voltage. This invention is particularly relevant to LED power supplies or battery chargers and provides an electronic power supply for the control of an electrical load connected to an electrical source, the electrical load comprising a main load with at least one LED and an auxiliary load with at least one LED, the electronic power supply comprising a series compensation block connected in series with the main load and the voltage source, the series compensation block providing a voltage in opposition to the voltage source by directly controlling the power delivered to the auxiliary load and indirectly controlling the power converted in the main load. 1. An electronic power supply for the control of an electrical load , the electrical load comprising a main load containing at least one LED and an auxiliary load containing at least one LED , the electronic power supply comprising a series compensation block connected in series with the main load and an electrical source , wherein the series compensation block develops a voltage in opposition to the electrical source while controlling the power delivered to the auxiliary load.2. An electronic power supply according to wherein the series compensation block directly controls the power delivered to the auxiliary load and indirectly controls the power converted in the main load.3. An electronic power supply according to wherein the electrical source is a voltage source.4. An electronic power supply according to wherein the main load contains an LED string with two or more LEDs connected in series.5. An electronic power supply according to wherein the auxiliary load contains an LED string with two or more LEDs ...

Подробнее
Номер записи: 94
22-08-2013 дата публикации

LONG-DISTANCE CONSTANT-VOLTAGE ELECTRICITY-FEEDING METHOD WITH WAKE-UP FUNCTION AND SYSTEM

Номер: US20130214759A1
Автор: Chen Xiangning, Hao Lifang, Zhang Jie
Принадлежит:

Disclosed are a wired long-distance constant-voltage electricity-feeding method with a wake-up function and a system. A smart electricity supply module of a central electricity supply device generates a feed voltage from a central electricity source, and feeds the voltage to a terminal electricity source module through a feed line. Said smart electricity supply module can continuously provide electricity at a constant voltage to the terminal electricity source module and can change feed voltage polarity according to set rules when the terminal electricity module in sleep-mode must be remotely waken up. A voltage polarity monitoring module of said terminal electricity source module can determine, by monitoring the polarity of the voltage of the centrally fed electricity, whether to wake up the terminal electricity source module from sleep-mode to enter a normal electricity-supplying mode. The electrical feed circuit and the wake-up function are easy to implement, and provide a versatile power feed and high energy efficiency while reducing withstand-voltage process requirements. 1. A long-distance constant-voltage feeding method with wake-up function , comprising an intelligent power supply module , a terminal power supply module , and a feeder line that connects the intelligent power supply module and the terminal power supply module , wherein , the intelligent power supply module can provide constant-voltage feeding to the terminal power supply module constantly , and can change the polarity of feeding voltage in accordance with predefined rules when the terminal power supply module in sleep mode is to be waken up remotely;the intelligent power supply module monitors the active state of the terminal power supply module constantly, and outputs the monitored active state of the terminal power supply module to other modules at the local side;the terminal power supply module is in sleep mode initially and consumes lower feeding current, and will consume higher feeding ...

Подробнее
Номер записи: 95
22-08-2013 дата публикации

SWITCH CONTROLLER, SWITCH CONTROL METHOD, AND POWER SUPPLY DEVICE COMPRISING THE SWITCH CONTROLLER

Номер: US20130215655A1
Автор: CHO Gye-Hyun, EOM Hyun-Chul, PARK In-Ki, YANG Seung-Uk
Принадлежит:

An exemplary embodiment of the present invention relates to a switch controller, a method for controlling a switch, and a power supply including the switch controller. According to the exemplary embodiment of the present invention, an AC input passed through a dimmer is rectified such that an input voltage is generated, and the input voltage is transmitted to the power switch. A charging current is generated using a voltage that depends on the input voltage, a zero cross-point at which the input voltage becomes zero voltage is detected using a detection voltage output from a current source, and a reference signal synchronized at the detected zero cross-point is generated. 1. An apparatus controlling switching operation of a power switch to which an input voltage rectified from an AC input passed through a dimmer is transmitted , comprising:a current source generating a charging current using a voltage that depends on the input voltage, anda reference signal generator detecting a zero cross-point at which the input voltage becomes zero voltage using a detection voltage output from the current source and generating a reference signal synchronized at the detected zero cross-point.2. The switch controller of claim 1 , wherein an input terminal voltage of the power switch depends on the input voltage claim 1 , and the current source generates a charging current that depends on the input terminal voltage of the power switch.3. The switch controller of claim 2 , wherein the current source comprises a JFET claim 2 , and the detection voltage is a voltage that is the input terminal voltage of the power switch claim 2 , passed through the JFET.4. The switch controller of claim 1 , wherein the reference signal generator comprises:a zero cross detection circuit receiving the detection voltage and sensing a time point that the detection voltage reaches zero voltage;a digital sine wave generator generating a reference clock signal controlling an increase or decrease time point of ...

Подробнее
Номер записи: 96
22-08-2013 дата публикации

Active bridge rectification

Номер: US20130215657A1
Автор: Jeffrey Lynn Heath, John Stineman, Kirk Su
Принадлежит: Individual

Technique for controlling a circuit that converts an AC input voltage into a DC output voltage using transistors arranged in first and second transistor pairs. Each transistor of the first pair is controlled in accordance with polarity of the AC input voltage. Each transistor of the second pair is controlled based on a difference between the AC input voltage and the DC output voltage.

Подробнее
Номер записи: 97
22-08-2013 дата публикации

Multipoint Converters With Brake Chopper

Номер: US20130215658A1
Автор: Brückner Thomas, JAKOB Roland
Принадлежит: GE ENERGY POWER CONVERSION GMBH

An electrical circuit for a power converter is described. The circuit has been provided with several semiconductor switches and capacitors used for operating the power converter. A brake resistance for lowering energy is provided, connected to the semiconductor switches provided without the need for an additional switch. The operation of the power converter and the current flowing through the brake resistance can be controlled by means of the existing semiconductor switches. 1. Electrical circuit for a power converter with a number of semiconductor switches and energy-storing devices provided for operating the power converter , and with a brake resistance for reducing power , characterized in that two or more parallel circuit structures are used , that the brake resistance between one node of one of the circuit structures and a node of one of the circuit structures parallel to it is switched on , that the brake resistance is connected to the semiconductor switches provided without an additional switch being present , and that the operation of the power converter and the current flowing through the brake resistance can be controlled by means of the semiconductor switches provided.2. Electrical circuit according to claim 1 , whereby the semiconductor switches of all parallel circuit structures can be controlled in the same way for controlling the normal operation of the power converter claim 1 , and whereby the semiconductor switches claim 1 , at least of one of the parallel circuit structures on which the brake resistance is connected to claim 1 , can be controlled for controlling the current flowing through the brake resistance in a different way than during normal operation.3. Electrical circuit according to claim 2 , whereby—when the semiconductor switches of two parallel circuit structures to which the brake resistance is connected are controlled in the same way for controlling the normal operation of the power converter—the two connection points to which the ...

Подробнее
Номер записи: 98
29-08-2013 дата публикации

MULTILEVEL POWER SUPPLY

Номер: US20130221752A1
Автор: WATKINS Gavin
Принадлежит: KABUSHIKI KAISHA TOSHIBA

According to an embodiment there is provided a multilevel power supply comprising two power sources that share a common node, a switching arrangement, a charge storage device and an output terminal. The two power sources are configured to provide a first potential V, a second potential Vand a third potential V, wherein V>V>V. The switching arrangement is configured to charge the charge storage device between potentials Vand Vin a first switching state and to connect the charge storage device between potential Vand the output in a second switching state. 1. A multilevel power supply comprising two power sources that share a common node , a switching arrangement , a charge storage device and an output terminal , wherein the two power sources are configured to provide a first potential V , a second potential Vand a third potential V , wherein V>V>V , the switching arrangement configured to charge the charge storage device between potentials Vand Vin a first switching state and to connect the charge storage device between potential Vand the output in a second switching state.2. A multilevel power supply according to claim 1 , wherein the switching arrangement is configured to connect the output to potential Vin a third switching state and/or to potential Vor Vin a fourth switching state.3. A multilevel power supply according to claim 1 , wherein the output is a first stage output claim 1 , the multilevel power supply further comprising a second charge storage device with a second stage output claim 1 , wherein the switching arrangement is configured to claim 1 , in a fifth switching state claim 1 , connect the second charge storage device between the first and second stage outputs when the first charge storage device is connected between potential Vand the first stage output node.4. A multilevel power supply according to claim 1 , wherein the output is a first stage output claim 1 , the multilevel power supply further comprising a second charge storage device with a ...

Подробнее
Номер записи: 99
29-08-2013 дата публикации

DIGITAL CONTROL CIRCUIT FOR RESONANT POWER CONVERTERS

Номер: US20130223111A1
Автор: HSU Chien-Tsun, HSU Yi-Min, Tsu Pei-Sheng, WANG CHOU-SHENG, YANG Ta-Yung, Yeh Chung-Hui
Принадлежит: System General Corporation

A resonant control circuit for a power converter is provided. The resonant control circuit includes a microcontroller, a switching-signal timer, a first PWM timer, and a signal detection circuit. The microcontroller has a memory circuit, and the memory circuit includes a program memory and a data memory. The switching-signal timer generates a first switching signal coupled to switch a transformer. The first PWM timer generates a PWM signal coupled to control a synchronous rectifying transistor of the power converter for synchronous rectifying. The signal detection circuit is coupled to an output of the power converter for generating a feedback data from a feedback signal. The microcontroller controls the first switching signal by programming the switching-signal timer in accordance with the feedback data. The microcontroller controls the first PWM signal by programming the first PWM timer in response to the first switching signal. 1. A resonant control circuit for a power converter comprising:a microcontroller having a memory circuit, wherein the memory circuit comprises a program memory and a data memory;a switching-signal timer for generating a first switching signal coupled to switch a transformer;a first PWM timer for generating a first PWM signal coupled to control a synchronous rectifying transistor of the power converter for synchronous rectifying; andan analog-to-digital converter coupled to an output of the power converter for generating a feedback data from a feedback signal;wherein the microcontroller controls the first switching signal by programming the switching-signal timer in accordance with the feedback data, and the microcontroller controls the first PWM signal by programming the first PWM timer in response to the first switching signal.2. The resonant control circuit as claimed in further comprising:a circuit coupled to an output rectifier of the power converter for detecting an on/off state of the output rectifier and generating a detection ...

Подробнее
Номер записи: 100