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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

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Мониторинг СМИ

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

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Применить Всего найдено 43. Отображено 39.
23-03-2017 дата публикации

POWER CONVERSION APPARATUS AND METHOD FOR CONTROLLING POWER CONVERSION APPARATUS

Номер: US20170085181A1
Автор: Kenji TOMITA, Kimikazu NAKAMURA, Shinya GOTO, Katsutoyo MISAWA, Yuuichi HANDA, Seiji IYASU, TOMITA KENJI, NAKAMURA KIMIKAZU, GOTO SHINYA, MISAWA KATSUTOYO, HANDA YUUICHI, IYASU SEIJI, TOMITA Kenji, NAKAMURA Kimikazu, GOTO Shinya, MISAWA Katsutoyo, HANDA Yuuichi, IYASU Seiji
Принадлежит: Denso Corp

A power conversion apparatus supplies power from a DC power supply to a capacitive load by a current input push-pull DCDC converter provided with switching elements Q 1 and Q 2 . When a capacitive load voltage is not larger than a second predetermined value, a first mode is used which turns ON one of the switching elements Q 1 and Q 2 alternated with turning OFF both. When the capacitive load voltage is larger than the second predetermined value but not larger than a first predetermined value, a second mode is used which turns ON both of the switching elements Q 1 and Q 2 , then turns ON one of them, then turns OFF both, sequentially. When the capacitive load voltage is larger than the first predetermined value, a third mode is used, turning ON both of the switching elements Q 1 and Q 2 alternated with turning ON one of them.

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Номер записи: 1
20-04-2017 дата публикации

AC-DC CONVERTER WITH OUTPUT POWER SUPPRESSION

Номер: US20170110972A1
Автор: Yuuichi HANDA, Seiji IYASU, Kimikazu NAKAMURA, HANDA YUUICHI, IYASU SEIJI, NAKAMURA KIMIKAZU, HANDA Yuuichi, IYASU Seiji, NAKAMURA Kimikazu
Принадлежит:

A power conversion apparatus for converting AC power supplied from an AC power source to DC power includes an AC-DC conversion circuit connected with the AC power source at an input end thereof for converting the AC power to DC power, a DC-DC conversion circuit connected with an output end of the AC-DC conversion circuit at an input end thereof for converting DC voltage level of the DC power generated by the AC-DC conversion circuit, a smoothing capacitor parallel connected to the output end of the AC-DC conversion circuit and the input end of the DC-DC conversion circuit, a DC link voltage detector for detecting a voltage of the smoothing capacitor as a DC link voltage, and a control unit for controlling operation of the DC-DC conversion circuit. The control unit suppresses an output power of the DC-DC conversion circuit, if the DC link voltage is smaller than a predetermined value. 1. A power conversion apparatus comprising:an AC-DC conversion circuit connected with an AC power source at an input end thereof for converting an AC power supplied from the AC power source to DC power;a DC-DC conversion circuit connected with an output end of the AC-DC conversion circuit at an input end thereof for converting DC voltage level of the DC power generated by the AC-DC conversion circuit;a smoothing capacitor parallel connected to the output end of the AC-DC conversion circuit and the input end of the DC-DC conversion circuit;a DC link voltage detector for detecting a voltage of the smoothing capacitor as a DC link voltage; anda control unit for controlling operation of the DC-DC conversion circuit,wherein the control unit is configured to suppress output power of the DC-DC conversion circuit if the DC link voltage is smaller than a first predetermined value, andthe control unit suppress the output power of the DC-DC conversion circuit by multiplying a voltage command value as a value to command an output voltage of the DC-DC conversion circuit by a coefficient set in a ...

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Номер записи: 2
17-12-2020 дата публикации

VEHICULAR HEAT MANAGEMENT SYSTEM

Номер: WO2020250765A1
Автор: MAEDA Takahiro, KATOH Yoshiki, FUKAYA Atsushi, SHIMIZU Takumi, HANDA Yuuichi, KURAUCHI Syuji
Принадлежит:

The purpose of the present disclosure is to provide a vehicular heat management system capable of easily and effectively utilizing heat generated by an electrical device. The vehicular heat management system is applied to a vehicle on which a plurality of electrical devices (11, 70, 71, 72, 73) powered by a battery (60) are mounted. The plurality of electrical devices have traveling system electrical devices (70, 71), and non-traveling system electrical devices (11, 72). A traveling system electrical path (61) for supplying electricity to the traveling system electrical devices (70, 71) and a non-traveling system electrical path (62) for supplying electricity to the non-traveling system electrical devices (11, 72) are mutually connected in parallel to the battery (60). Heat generated by the non-traveling system electrical devices is used as a heat source for an object to be heated.

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Номер записи: 3
02-02-2017 дата публикации

POWER CONVERSION APPARATUS

Номер: US20170033696A1
Автор: Yuuichi HANDA, Seiji IYASU, Kimikazu NAKAMURA, HANDA YUUICHI, IYASU SEIJI, NAKAMURA KIMIKAZU, HANDA Yuuichi, IYASU Seiji, NAKAMURA Kimikazu
Принадлежит: DENSO CORPORATION

A power conversion apparatus includes a power conversion circuit, a choke coil, an auxiliary coil, and a rectifier element. The choke coil is disposed between the power conversion circuit and an input side direct current power source. The auxiliary coil is magnetically coupled to the choke coil and is connected in parallel with an output side circuit. The auxiliary coil is wound in a direction so that an excitation current flows from a negative electrode to a positive electrode of the output side circuit when an excitation current flows from a positive electrode to a negative electrode of the direct current power source through the choke coil. The rectifier element is series connection with the auxiliary coil, and cuts off power supply from the direct current power source to the output side circuit through the auxiliary coil and power supply from the output side circuit to the input side.

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Номер записи: 4
02-02-2017 дата публикации

POWER SUPPLY APPARATUS

Номер: US20170033702A1
Автор: Shuji KURAUCHI, Katsutoyo MISAWA, Shotaro YAMASAKI, Yuuichi HANDA, Yuuki TAKEMOTO, KURAUCHI SHUJI, MISAWA KATSUTOYO, YAMASAKI SHOTARO, HANDA YUUICHI, TAKEMOTO YUUKI, KURAUCHI Shuji, MISAWA Katsutoyo, YAMASAKI Shotaro, HANDA Yuuichi, TAKEMOTO Yuuki
Принадлежит: DENSO CORPORATION

In a power supply apparatus, one of a transformer and a first semiconductor device is stacked on the other thereof to constitute a stack assembly. The stack assembly, a second semiconductor device, and a choke coil are located on the major surface. A primary direct-current wire, which connects the first semiconductor device to a direct-current power source, is drawn out from a first predetermined portion of the stack assembly. A primary alternating-current wire, which connects the first semiconductor device and the transformer, is drawn out from a second predetermined portion of the stack assembly. The primary direct-current wire and the primary alternating-current wire are located to be separated from each other via at least a part of the stack assembly.

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Номер записи: 5
09-01-2014 дата публикации

ELECTRIC POWER CONVERTER

Номер: US20140009971A1
Автор: HANDA Yuuichi, HAYASHI Yuji, ITOU Hideki
Принадлежит:

An electric power converter has a switching circuit section, a transformer, a rectifier, and a noise filtering element. The rectifier is connected to a secondary coil of the transformer. A closed circuit where the noise current flows is formed by the secondary coil, the rectifier, and the noise filtering element. The transformer and the noise filtering element are disposed in a position next to each other. The secondary coil and the noise filtering element are electrically connected to each other through a terminal for a coil that is a terminal of the secondary coil and a terminal for a filter that is a terminal of the noise filtering element. The terminal for the coil and the terminal for the filter are disposed in a position between the transformer and the noise filtering element. 1. An electric power converter comprising:a switching circuit section that is composed of switching elements;a transformer that has a primary coil connected to the switching circuit section and a secondary coil;a rectifier connected to the secondary coil of the transformer; anda noise filtering element that allows a specific noise current to pass; wherein,a closed circuit where the noise current flows is formed by the secondary coil, the rectifier, and the noise filtering element;the transformer and the noise filtering element are disposed in a position next to each other;the secondary coil and the noise filtering element are electrically connected to each other through a terminal for a coil that is a terminal of the secondary coil and a terminal for a filter that is a terminal of the noise filtering element; andthe terminal for the coil and the terminal for the filter are disposed in a position between the transformer and the noise filtering element.2. The electric power converter according to claim 1 , wherein claim 1 ,the terminal for the coil and the terminal for the filter are connected directly.3. The electric power converter according to claim 2 , wherein claim 2 ,there is ...

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Номер записи: 6
29-01-2015 дата публикации

Electric power source device equipped with transformer

Номер: US20150029757A1
Автор: Katsutoyo Misawa, Shotaro Yamasaki, Shuji KURAUCHI, Yuuichi HANDA, Yuuki Takemoto
Принадлежит: Denso Corp

An electric power source device has a transformer, primary side semiconductor components, secondary side semiconductor components, a choke coil, a base plate and first circuit substrate and one or more second circuit substrates. The transformer has a primary side coil and a secondary side coil. The primary side semiconductor components form a primary side circuit connected to the primary side coil. The secondary side semiconductor components form a secondary side circuit connected to the secondary side coil. The choke coil has a smoothing circuit for smoothing an output voltage. The transformer, the primary side semiconductor components, the secondary side semiconductor components and the choke coil are formed on the base plate. The first circuit substrate is arranged parallel to the base plate. The second circuit substrate is arranged parallel to a normal line of the first circuit substrate.

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Номер записи: 7
29-01-2015 дата публикации

Electric power source device

Номер: US20150029759A1
Автор: Katsutoyo Misawa, Kenta HATAKENAKA, Syotarou YAMASAKI, Syuji KURAUCHI, Yuuichi HANDA, Yuuki Takemoto
Принадлежит: Denso Corp

An electric power source device has a transformer, a primary-side semiconductor module, a secondary-side semiconductor module, a secondary-side electrical component, a base plate and a circuit substrate on which substrate-side electrical components are mounted. The primary-side semiconductor module has a larger exterior size than the secondary-side electrical component. The primary-side semiconductor module and the secondary-side electrical component form a stacked section. In the stacked section, the secondary-side electrical component is stacked, in a vertical direction, i.e. a direction of a normal line of a mounting surface of the base plate, on the primary-side semiconductor module. The primary-side semiconductor module is directly mounted on the mounting surface. At least a part of the substrate-side electrical components is arranged inside of the primary-side semiconductor module in a horizontal direction, and inside of a second surface of the stacked section toward the mounting surface along the normal line.

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Номер записи: 8
10-02-2022 дата публикации

CONTROL APPARATUS FOR POWER CONVERSION APPARATUS

Номер: US20220045595A1
Автор: HANDA Yuuichi, IYASU Seiji, KOBAYASHI Naoto
Принадлежит: Denso Corporation

A control apparatus for a power conversion apparatus acquires a detected voltage of an alternating-current power supply. The control apparatus determines a period from when the detected voltage exceeds a first determination value for determining a zero-up-crossing timing of an actual voltage of the alternating-current power supply until the detected voltage falls below a second determination value for determining a zero-down-crossing timing of the actual voltage to be a period during which the actual voltage has a positive polarity, and determines a period from when the detected voltage falls below the second determination value until the detected voltage exceeds the first determination value to be a period during which the actual voltage has a negative polarity. The first determination value is less than the detected voltage when the actual voltage is zero, and the second determination value is greater than the detected voltage when the actual voltage is zero. 1. A control apparatus for a power conversion apparatus that includes a reactor , a first alternating-current-side terminal , a second alternating-current-side terminal , a first direct-current-side terminal , a second direct-current-side terminal , and a full-bridge circuit that is provided between the alternating-current-side terminals and the reactor ,the power conversion apparatus being provided with at least either of a function for converting an alternating-current voltage of an alternating-current power supply that is inputted from the alternating-current-side terminals to a direct-current voltage and outputting the direct-current voltage from the direct-current-side terminals, and a function for converting a direct-current voltage that is inputted from the direct-current-side terminals to an alternating-current voltage and outputting the alternating-current voltage from the alternating-current-side terminals, whereinthe full-bridge circuit has a series-connection body of a first switch and a second ...

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Номер записи: 9
05-02-2015 дата публикации

COMPACT STRUCTURE OF POWER-SUPPLY APPARATUS CAPABLE OF MINIMIZING ELECTROMAGNETIC NOISE

Номер: US20150036388A1
Автор: HANDA Yuuichi, KURAUCHI Shuji, MISAWA Katsutoyo, Takemoto Yuuki, YAMASAKI Shotaro
Принадлежит:

A power-supply apparatus is provided which includes a transformer, a primary semiconductor unit, a secondary semiconductor unit, and a secondary electronic device. Each of the primary semiconductor unit and the secondary semiconductor units has a plurality of semiconductor devices installed therein. The transformer, the primary semiconductor unit, the secondary semiconductor unit, and the secondary electronic device are electrically joined through connecting conductors. The transformer is laid on the primary semiconductor unit to make a first stack. Similarly, the secondary electronic device is laid on the secondary semiconductor unit. This permits the power-supply apparatus to be reduced in overall size thereof and minimizes adverse effects of electromagnetic noise to ensure the high efficiency in power supply operation. 1. A power-supply apparatus comprising:a transformer equipped with a primary coil and a secondary coil;a primary semiconductor unit in which semiconductor devices are installed, the primary semiconductor unit being joined to the primary coil of the transformer;a secondary semiconductor unit in which semiconductor devices are installed, the secondary semiconductor unit being joined to the secondary coil of the transformer;a secondary electronic device which makes up a secondary circuit along with the secondary semiconductor unit;a plurality of connecting conductors which electrically connect among the transformer, the primary semiconductor unit, the secondary semiconductor unit, and the secondary electronic device;a first stack made up of one of the transformer and the secondary electronic device and the primary semiconductor unit; anda second stack made up of the other of the transformer and the secondary electronic device and the secondary semiconductor unit.2. A power-supply apparatus as set forth in claim 1 , wherein at least one of the connecting conductors is disposed between the first stack and the second stack.3. A power-supply apparatus as ...

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Номер записи: 10
08-03-2018 дата публикации

System, client device, server device, and program

Номер: US20180067983A1
Автор: Kazuya Hashimoto, Seiichiro Tanaka, Shun ENARI, Yuichiro ESAKI, Yuuichi HANDA
Принадлежит: Toshiba Corp, Toshiba Digital Solutions Corp

According to one embodiment, a client device includes a first rule storage unit, a first check execution unit, a user interface control unit, a request transmission unit, and a rule update unit. The rule update unit requests a server device to transmit a rule for updating the first rule storage unit on the basis of a predetermined trigger and updates the first rule storage unit by using the rule transmitted from the server device as a response to the request. The server device has a client rule generation unit. The client rule generation unit generates the client rule to transmit the generated client rule to the client device of a request source when a rule request is received from the rule update unit.

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Номер записи: 11
31-03-2016 дата публикации

Power conversion apparatus

Номер: US20160094134A1
Автор: Kimikazu Nakamura, Seiji Iyasu, Yuuichi HANDA
Принадлежит: Denso Corp

Power conversion apparatus converts input voltage and supplies output voltage to the electric load. The apparatus includes a semiconductor switch switches between open and closed states to regulate voltage control current for controlling output voltage, a first voltage detection section detects remote voltage being applied to the electric load as output voltage, a second voltage detection section detects a local voltage being applied to the output terminal as output voltage, a target current calculation section calculates target current which is the voltage control current target value, based on voltage deviation between target voltage which is the output voltage target value and either remote voltage or local voltage, and a switch control section controls the semiconductor switch so voltage control current becomes target current, to regulate output voltage to target voltage. The target current calculation section calculates the target current by using one of the remote or local voltage corresponds to a smaller target current.

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Номер записи: 12
07-05-2015 дата публикации

POWER SUPPLY UNIT HAVING HEAT DISSIPATION STRUCTURE

Номер: US20150123645A1
Автор: HANDA Yuuichi, HATAKENAKA Kenta, KURAUCHI Syuji, MISAWA Katsutoyo, Takemoto Yuuki, YAMASAKI Syotarou
Принадлежит:

A power supply unit includes: a transformer; a primary component that constitutes a primary circuit connected to the transformer; a secondary component that constitutes a secondary circuit connected to the transformer; a choke coil; a base plate including the transformer, the primary component, the secondary component and the choke coil; a metal plate connected to the base plate; and a connecting member connecting the primary component and the transformer. The primary component and the transformer are laminated to constitute a first laminating body. A part of the metal plate is disposed closer to the transformer than the primary component, and the metal plate and the transformer are electrically connected by a ground line. A connection point between the ground line and the metal plate is located closer to the transformer than the primary component. 1. A power supply unit comprising:a transformer having a primary coil and a secondary coil;a primary component that constitutes a primary circuit connected to a primary coil of the transformer;a secondary component that constitutes a secondary circuit connected to a secondary coil of the transformer;a choke coil that constitutes a smoothing circuit used to smooth the output voltage thereof;a base plate provided with the transformer, the primary component, the secondary component and the choke coil on a surface thereof, the base plate being connected to a ground;a metal plate electrically connected to the base plate; and the primary component and the transformer are laminated in a normal direction of the base plate such that the primary component is disposed at a base plate side, thereby constituting a first laminating body;', 'at least a part of the metal plate is disposed closer to the transformer than to the primary component;', 'the metal plate and the transformer are electrically connected by a ground line, and a connection point between the ground line and the metal plate is located closer to the transformer than to ...

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Номер записи: 13
25-08-2022 дата публикации

POWER CONVERTER

Номер: US20220271684A1
Автор: HANDA Yuuichi, IYASU Seiji, KURAUCHI Syuji
Принадлежит: Denso Corporation

A power converter includes a full-bridge circuit, power converting circuit, transformer, and controller. The full-bridge circuit includes a series-connected unit made of first and second switches and a series-connected unit made of third and fourth switches and is connected to power transmitting terminals. The power converting circuit is connected to power receiving terminals. The transformer includes power transmitting coil and power receiving coil. The power transmitting coil is connected to full-bridge circuit. The power receiving coil is connected to power converting circuit. The controller turns on the first and second switches alternately and also the third and fourth switches alternately. A resistive load is connected to the power receiving terminals. The controller serves to determine a phase difference between the time when first switch is turned on and the time when third switch is turned on to decrease with a decrease in measured voltage developed at the power receiving terminals. 1. A power converter which is equipped with power transmitting terminals and power receiving terminals and to which a resistive load is connected to the power receiving terminal , comprising:a full-bridge circuit which includes a series-connected unit made of a first switch and a second switch and a series-connected unit made of a third switch and a fourth switch, each of the series-connected units being connected to the power transmitting terminals;a power converting circuit which is connected to the power receiving terminals;a transformer which includes a power transmitting coil and a power receiving coil, the power transmitting coil being connected to the full-bridge circuit, the power receiving coil being connected to the power converting circuit and magnetically coupled with the power transmitting coil;a power receiving voltage sensor which measures voltage developed at the power receiving terminals; anda controller which works to turn on the first switch and the second ...

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Номер записи: 14
11-05-2017 дата публикации

AC-DC CONVERTER WITH OUTPUT POWER SUPPRESSION

Номер: US20170133942A1
Автор: HANDA Yuuichi, IYASU Seiji, NAKAMURA Kimikazu
Принадлежит:

A power conversion apparatus for converting AC power supplied from an AC power source to DC power includes an AC-DC conversion circuit connected with the AC power source at an input end thereof for converting the AC power to DC power, a DC-DC conversion circuit connected with an output end of the AC-DC conversion circuit at an input end thereof for converting DC voltage level of the DC power generated by the AC-DC conversion circuit, a smoothing capacitor parallel connected to the output end of the AC-DC conversion circuit and the input end of the DC-DC conversion circuit, a DC link voltage detector for detecting a voltage of the smoothing capacitor as a DC link voltage, and a control unit for controlling operation of the DC-DC conversion circuit. The control unit suppresses an output power of the DC-DC conversion circuit, if the DC link voltage is smaller than a predetermined value. 1an AC-DC conversion circuit connected with an AC power source at an input end thereof for converting an AC power supplied from the AC power source to DC power;a DC-DC conversion circuit connected with an output end of the AC-DC conversion circuit at an input end thereof for converting DC voltage level of the DC power generated by the AC-DC conversion circuit;a smoothing capacitor parallel connected to the output end of the AC-DC conversion circuit and the input end of the DC-DC conversion circuit;a DC link voltage detector for detecting a voltage of the smoothing capacitor as a DC link voltage; anda control unit for controlling operation of the DC-DC conversion circuit,wherein the control unit is configured to suppress output power of the DC-DC conversion circuit if the DC link voltage is smaller than a first predetermined value, andthe control unit suppress the output power of the DC-DC conversion circuit by multiplying a current command value as a value to command an output current of the DC-DC conversion circuit by a coefficient set in a range between 0 and 1 in accordance with the ...

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Номер записи: 15
02-06-2016 дата публикации

Electric power converter

Номер: US20160157381A1
Автор: Hiromi ICHIJO, Kazuya Takeuchi, Makoto Okamura, Naoki Hirasawa, Ryota Tanabe, Tetsuya Matsuoka, Yuuichi HANDA
Принадлежит: Denso Corp

An electric power converter includes a semiconductor module constituting a power conversion circuit, a capacitor electrically connected to the semiconductor module, and a cooling member for cooling the capacitor. The capacitor includes an element body provided with internal electrode, and a pair of end-face-electrodes provided on both end faces of the element body and connected to the internal electrode. The pair of end-face-electrodes are connected with a pair of bus bars, respectively, in a manner of surface contact. The capacitor is disposed in a state where one of the pair of end-face-electrodes is facing the cooling member. The end-face-electrode facing the cooling member is in contact with the cooling member via the bus bar.

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Номер записи: 16
01-10-2015 дата публикации

Power conversion apparatus

Номер: US20150280591A1
Автор: Kimikazu Nakamura, Seiji Iyasu, Yuuichi HANDA
Принадлежит: Denso Corp

A power conversion apparatus for converting AC power supplied from an AC power source to DC power includes an AC-DC conversion circuit connected with the AC power source at an input end thereof for converting the AC power to DC power, a DC-DC conversion circuit connected with an output end of the AC-DC conversion circuit at an input end thereof for converting DC voltage level of the DC power generated by the AC-DC conversion circuit, a smoothing capacitor parallel connected to the output end of the AC-DC conversion circuit and the input end of the DC-DC conversion circuit, a DC link voltage detector for detecting a voltage of the smoothing capacitor as a DC link voltage, and a control unit for controlling operation of the DC-DC conversion circuit. The control unit suppresses output power of the DC-DC conversion circuit if the DC link voltage is

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Номер записи: 17
08-10-2015 дата публикации

Power supply apparatus

Номер: US20150288276A1
Автор: Katsutoyo Misawa, Kenta HATAKENAKA, Yuuichi HANDA, Yuuki Takemoto
Принадлежит: Denso Corp

A power supply apparatus includes a transformer which has a primary coil and a secondary coil, a primary side semiconductor component which configures a primary side circuit connected to a side of the primary coil of the transformer, a secondary side semiconductor component which configures a secondary side circuit connected to a side of the secondary coil of the transformer, a choke coil which is connected to the secondary side semiconductor component, and a base plate on which the transformer, the primary side semiconductor component, the secondary side semiconductor component, and the choke coil are mounted. Any two of the transformer, the primary side semiconductor component, the secondary side semiconductor component, and the choke coil configure a first stacked body stacked in a normal direction of the base plate, and other two of the transformer, the primary side semiconductor component, the secondary side semiconductor component, and the choke coil configure a second stacked body stacked in the normal direction of the base plate. The power supply apparatus has a pair of first lines connecting the primary side semiconductor component and the transformer to each other, and a pair of second lines connecting the transformer and the secondary side semiconductor component to each other. The first lines and the second lines respectively have a pair of first current paths and a pair of second current paths which are arranged so as to be adjacent to each other and are configured so that currents flow in the normal direction of the base plate. At least one of the pair of the second current paths is adjacent to at least one of the pair of the first current paths in a second direction orthogonal to a first direction in which the pair of the first current paths are adjacent to each other. The first current paths and the second current paths adjacent to each other in the second direction are configured so that currents flow therethrough in directions opposite to each ...

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Номер записи: 18
05-03-2024 дата публикации

Control apparatus for power conversion apparatus

Номер: US11923756B2
Автор: Naoto Kobayashi, Seiji Iyasu, Yuuichi HANDA
Принадлежит: Denso Corp

A control apparatus for a power conversion apparatus acquires a detected voltage of an alternating-current power supply. The control apparatus determines a period from when the detected voltage exceeds a first determination value for determining a zero-up-crossing timing of an actual voltage of the alternating-current power supply until the detected voltage falls below a second determination value for determining a zero-down-crossing timing of the actual voltage to be a period during which the actual voltage has a positive polarity, and determines a period from when the detected voltage falls below the second determination value until the detected voltage exceeds the first determination value to be a period during which the actual voltage has a negative polarity. The first determination value is less than the detected voltage when the actual voltage is zero, and the second determination value is greater than the detected voltage when the actual voltage is zero.

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Номер записи: 19
24-03-2022 дата публикации

Leistungsversorgungssystem

Номер: DE112020003260T5
Автор: Naoto Kobayashi, Syuji KURAUCHI, Yuuichi HANDA
Принадлежит: Denso Corp

Ein Leistungsversorgungssystem umfasst eine Leistungsumwandlungsschaltung (20, 50), die mit einer Leistungsspeichereinheit (10, 11) verbunden werden kann. Das Leistungsversorgungssystem umfasst: eine Steuerungseinheit (100), die einen Strom zwischen der Leistungsspeichereinheit und der Leistungsumwandlungsschaltung durch Durchführen einer An-Aus-Steuerung eines Schalters (Q1 bis Q16, QA1 bis QA4), der die Leistungsumwandlungsschaltung konfiguriert, zuführt; und einer Wärmeübertragungseinheit (45), die eine Wärme, die in der Leistungsumwandlungsschaltung einhergehend mit der An-Aus-Steuerung des Schalters erzeugt wird, absorbiert und die Wärme an ein Temperaturerhöhungszielelement überträgt. Die Steuerungseinheit führt eine Temperaturerhöhungsbetriebsartsteuerung durch, bei der der Schalter An-Aus-gesteuert wird, so dass ein Wärmebetrag, der in der Leistungsumwandlungsschaltung erzeugt wird, erhöht wird, wenn eine Temperaturerhöhungsanforderung für das Temperaturerhöhungszielelement vorhanden ist, im Vergleich damit, wenn die Temperaturerhöhungsanforderung nicht vorhanden ist.

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Номер записи: 20
04-08-2022 дата публикации

Elektrisches leistungsumwandlungsgerät

Номер: DE112020005351T5
Автор: Naoto Kobayashi, Syuji KURAUCHI, Yuuichi HANDA
Принадлежит: Denso Corp

Ein elektrisches Leistungsübertragungsgerät (20) weist einen Eingangsanschluss (CH1, CL1), einen Ausgangsanschluss (CH2, CL2) und eine Schaltereinheit (Q5 bis Q8, Q1) auf, und schaltet die Schaltereinheit ein und aus, um elektrische Leistung aus einer mit dem Eingangsanschluss verbundenen elektrischen Speichereinheiten (10) zu einem mit dem Ausgangsanschluss verbundenen Leistungszufuhrziel (11) zu übertragen. Die Schaltereinheit weist eine Eigenschaft auf, dass, wenn ein Rückwärtsleitungsstrom in der Schaltereinheit fließt, ein größerer Leitungsverlust in einem Aus-Zustand als in einem Ein-Zustand verursacht wird. Das elektrische Leistungsumwandlungsgerät weist auf: eine Steuerungseinheit (70), die bestimmt, ob es eine Anforderung zur Erhöhung einer Größe von Wärmeerzeugung aufgrund der elektrischen Leistungsübertragung gibt, und, wenn bestimmt wird, dass es die Anforderung zur Erhöhung der Größe der Wärmeübertragung gibt, die Schaltereinheit, in der während der elektrischen Leistungsübertragung der Rückwärtsleitungsstrom fließt, ausschaltet, und, wenn bestimmt wird, dass es keine Anforderung zur Erhöhung der Größe der Wärmeerzeugung gibt, die Schaltereinheit, in der während der elektrischen Leistungsübertragung der Rückwärtsleitungsstrom fließt, einschaltet.

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Номер записи: 21
18-06-2024 дата публикации

Power conversion apparatus

Номер: US12015351B2
Автор: Naoto Kobayashi, Syuji KURAUCHI, Yuuichi HANDA
Принадлежит: Denso Corp

A power conversion apparatus includes an input side terminal, an output side terminal and a switch unit, switching the switch unit between ON and OFF during a power transmission. The switch unit has characteristics that, in the case where a reverse current flows through the switch unit, the larger a gate voltage thereof in a negative side, the larger a conduction loss occurring when the reverse current flows. The power conversion apparatus is provided with a control unit that increases, when determined that the increase request for increasing the heating value is present, the gate voltage of the switch unit to the negative side when turned OFF compared to a case where no increase request for increasing the heating value is present, the reverse current flowing through the switch unit during the power transmission.

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Номер записи: 22
11-08-2022 дата публикации

Power conversion apparatus

Номер: US20220255445A1
Автор: Naoto Kobayashi, Syuji KURAUCHI, Yuuichi HANDA
Принадлежит: Denso Corp

A power conversion apparatus includes an input side terminal, an output side terminal and a switch unit, switching the switch unit between ON and OFF during a power transmission. The switch unit has characteristics that, in the case where a reverse current flows through the switch unit, the larger a gate voltage thereof in a negative side, the larger a conduction loss occurring when the reverse current flows. The power conversion apparatus is provided with a control unit that increases, when determined that the increase request for increasing the heating value is present, the gate voltage of the switch unit to the negative side when turned OFF compared to a case where no increase request for increasing the heating value is present, the reverse current flowing through the switch unit during the power transmission.

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Номер записи: 23
04-08-2022 дата публикации

Leistungsumwandlungsvorrichtung

Номер: DE112020005352T5
Автор: Naoto Kobayashi, Syuji KURAUCHI, Yuuichi HANDA
Принадлежит: Denso Corp

Leistungsumwandlungsvorrichtung (20, 90, 100) mit einem Eingangsseitenanschluss (CH1, CL1), einem Ausgangsseitenanschluss (CH2, CL2), und einer Schalteinheit (Q5 bis Q8, Q11), die die Schalteinheit während einer Leistungsübertragung, bei der eine Leistung von einer mit dem Eingangsseitenanschluss verbundenen Speichereinheit (10) zu einem Leistungszufuhrobjekt (11) übertragen wird, zwischen EIN und AUS schaltet. Die Schalteinheit weist Eigenschaften derart auf, dass in dem Fall, in dem ein Rückwärtsleitungsstrom durch die Schalteinheit fließt, je größer eine Gatespannung davon auf einer Negativseite ist, desto größer ein Leitungsverlust ist, der auftritt, wenn der Rückwärtsleitungsstrom fließt. Auch ist die Leistungsumwandlungsvorrichtung mit einer eine Steuereinheit (70) versehen, die, wenn bestimmt ist, dass die Erhöhungsanforderung für eine Erhöhung des Heizwerts vorliegt, die Gatespannung der Schalteinheit wenn ausgeschaltet zu der Negativseite hin erhöht verglichen mit einem Fall, in dem keine Erhöhungsanforderung für eine Erhöhung des Heizwerts vorliegt, wobei der Rückwärtsleitungsstrom während der Leistungsübertragung durch die Schalteinheit fließt.

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Номер записи: 24
15-06-2022 дата публикации

Leistungswandler

Номер: DE112020004720T5
Автор: Seiji Iyasu, Syuji KURAUCHI, Yuuichi HANDA
Принадлежит: Denso Corp

Ein Leistungswandler (40) umfasst eine Vollbrückenschaltung (50), eine Leistungsumwandlungsschaltung (70, 110, 120, 130), einen Transformator (80) und eine Steuerung (100). Die Vollbrückenschaltung umfasst eine Reihenverbindungseinheit, die aus einem ersten und einem zweiten Schalter (Q1, Q2) gebildet ist, und eine Reihenverbindungseinheit, die aus einem dritten und einem vierten Schalter (Q3, Q4) gebildet ist, und mit Leistungsübertragungsanschlüssen (CH1, CL1) verbunden ist. Die Leistungsumwandlungsschaltung ist mit Leistungsempfangsanschlüssen (CH2, CL2) verbunden. Der Transformator umfasst eine Leistungsübertragungsspule (81) und eine Leistungsempfangsspule (83). Die Leistungsübertragungsspule ist mit der Vollbrückenschaltung verbunden. Die Leistungsempfangsspule ist mit der Leistungsumwandlungsschaltung verbunden. Die Steuerung arbeitet, um den ersten und zweiten Schalter abwechselnd einzuschalten und ebenso um den dritten und vierten Schalter abwechselnd einzuschalten. Eine resistive Last (30) ist mit den Leistungsempfangsanschlüssen verbunden. Die Steuerung dient dazu, eine Phasendifferenz (λ1) zwischen der Zeit, wenn der erste Schalter eingeschaltet wird, und der Zeit, wenn der dritte Schalter eingeschaltet wird, mit einer Verringerung der gemessenen Spannung (V3r), die an den Leistungsempfangsanschlüssen entsteht, zu verringern.

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Номер записи: 25
16-07-2024 дата публикации

Power supply system

Номер: US12036893B2
Автор: Naoto Kobayashi, Syuji KURAUCHI, Yuuichi HANDA
Принадлежит: Denso Corp

A power supply system includes a power conversion circuit that is connectable to a power storage unit. The power supply system includes a control unit and a heat transferring unit. The control unit supplies a current between the power storage unit and the power conversion circuit by performing on-off control of a switch that configures the power conversion circuit. The heat transferring unit absorbs heat that is generated in the power conversion circuit in accompaniment with the on-off control of the switch and transfers the heat to a temperature-increase target element. The control unit performs temperature-increase mode control in which the switch is on-off controlled such that an amount of heat that is generated in the power conversion circuit is increased when a temperature-increase request for the temperature-increase target element is present, compared to when the temperature-increase request is not present.

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Номер записи: 26
20-03-2018 дата публикации

Power supply apparatus for reducing noise induced in DC wires

Номер: US09923473B2
Автор: Katsutoyo Misawa, Shotaro Yamasaki, Shuji KURAUCHI, Yuuichi HANDA, Yuuki Takemoto
Принадлежит: Denso Corp

In a power supply apparatus, one of a transformer and a first semiconductor device is stacked on the other thereof to constitute a stack assembly. The stack assembly, a second semiconductor device, and a choke coil are located on the major surface. A primary direct-current wire, which connects the first semiconductor device to a direct-current power source, is drawn out from a first predetermined portion of the stack assembly. A primary alternating-current wire, which connects the first semiconductor device and the transformer, is drawn out from a second predetermined portion of the stack assembly. The primary direct-current wire and the primary alternating-current wire are located to be separated from each other via at least a part of the stack assembly.

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Номер записи: 27
20-02-2018 дата публикации

Power conversion apparatus having an auxiliary coil functioning as a flyback transformer

Номер: US09899928B2
Автор: Kimikazu Nakamura, Seiji Iyasu, Yuuichi HANDA
Принадлежит: Denso Corp

A power conversion apparatus includes a power conversion circuit, a choke coil, an auxiliary coil, and a rectifier element. The choke coil is disposed between the power conversion circuit and an input side direct current power source. The auxiliary coil is magnetically coupled to the choke coil and is connected in parallel with an output side circuit. The auxiliary coil is wound in a direction so that an excitation current flows from a negative electrode to a positive electrode of the output side circuit when an excitation current flows from a positive electrode to a negative electrode of the direct current power source through the choke coil. The rectifier element is series connection with the auxiliary coil, and cuts off power supply from the direct current power source to the output side circuit through the auxiliary coil and power supply from the output side circuit to the input side.

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Номер записи: 28
13-02-2018 дата публикации

Power supply unit having heat dissipation structure

Номер: US09893624B2
Автор: Katsutoyo Misawa, Kenta HATAKENAKA, Syotarou YAMASAKI, Syuji KURAUCHI, Yuuichi HANDA, Yuuki Takemoto
Принадлежит: Denso Corp

A power supply unit includes: a transformer; a primary component that constitutes a primary circuit connected to the transformer; a secondary component that constitutes a secondary circuit connected to the transformer; a choke coil; a base plate including the transformer, the primary component, the secondary component and the choke coil; a metal plate connected to the base plate; and a connecting member connecting the primary component and the transformer. The primary component and the transformer are laminated to constitute a first laminating body. A part of the metal plate is disposed closer to the transformer than the primary component, and the metal plate and the transformer are electrically connected by a ground line. A connection point between the ground line and the metal plate is located closer to the transformer than the primary component.

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Номер записи: 29
12-09-2017 дата публикации

AC-DC converter with output power suppression

Номер: US09762133B2
Автор: Kimikazu Nakamura, Seiji Iyasu, Yuuichi HANDA
Принадлежит: Denso Corp

A power conversion apparatus for converting AC power supplied from an AC power source to DC power includes an AC-DC conversion circuit connected with the AC power source at an input end thereof for converting the AC power to DC power, a DC-DC conversion circuit connected with an output end of the AC-DC conversion circuit at an input end thereof for converting DC voltage level of the DC power generated by the AC-DC conversion circuit, a smoothing capacitor parallel connected to the output end of the AC-DC conversion circuit and the input end of the DC-DC conversion circuit, a DC link voltage detector for detecting a voltage of the smoothing capacitor as a DC link voltage, and a control unit for controlling operation of the DC-DC conversion circuit. The control unit suppresses an output power of the DC-DC conversion circuit, if the DC link voltage is smaller than a predetermined value.

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Номер записи: 30
05-09-2017 дата публикации

AC-DC converter with output power suppression

Номер: US09755528B2
Автор: Kimikazu Nakamura, Seiji Iyasu, Yuuichi HANDA
Принадлежит: Denso Corp

A power conversion apparatus for converting AC power supplied from an AC power source to DC power includes an AC-DC conversion circuit connected with the AC power source at an input end thereof for converting the AC power to DC power, a DC-DC conversion circuit connected with an output end of the AC-DC conversion circuit at an input end thereof for converting DC voltage level of the DC power generated by the AC-DC conversion circuit, a smoothing capacitor parallel connected to the output end of the AC-DC conversion circuit and the input end of the DC-DC conversion circuit, a DC link voltage detector for detecting a voltage of the smoothing capacitor as a DC link voltage, and a control unit for controlling operation of the DC-DC conversion circuit. The control unit suppresses an output power of the DC-DC conversion circuit, if the DC link voltage is smaller than a predetermined value.

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Номер записи: 31
18-07-2017 дата публикации

Electric power converter

Номер: US09713293B2
Автор: Hiromi ICHIJO, Kazuya Takeuchi, Makoto Okamura, Naoki Hirasawa, Ryota Tanabe, Tetsuya Matsuoka, Yuuichi HANDA
Принадлежит: Denso Corp

An electric power converter includes a semiconductor module constituting a power conversion circuit, a capacitor electrically connected to the semiconductor module, and a cooling member for cooling the capacitor. The capacitor includes an element body provided with internal electrode, and a pair of end-face-electrodes provided on both end faces of the element body and connected to the internal electrode. The pair of end-face-electrodes are connected with a pair of bus bars, respectively, in a manner of surface contact. The capacitor is disposed in a state where one of the pair of end-face-electrodes is facing the cooling member. The end-face-electrode facing the cooling member is in contact with the cooling member via the bus bar.

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Номер записи: 32
11-07-2017 дата публикации

AC-DC converter with output power suppression

Номер: US09705397B2
Автор: Kimikazu Nakamura, Seiji Iyasu, Yuuichi HANDA
Принадлежит: Denso Corp

A power conversion apparatus for converting AC power supplied from an AC power source to DC power includes an AC-DC conversion circuit connected with the AC power source at an input end thereof for converting the AC power to DC power, a DC-DC conversion circuit connected with an output end of the AC-DC conversion circuit at an input end thereof for converting DC voltage level of the DC power generated by the AC-DC conversion circuit, a smoothing capacitor parallel connected to the output end of the AC-DC conversion circuit and the input end of the DC-DC conversion circuit, a DC link voltage detector for detecting a voltage of the smoothing capacitor as a DC link voltage, and a control unit for controlling operation of the DC-DC conversion circuit. The control unit suppresses an output power of the DC-DC conversion circuit, if the DC link voltage is smaller than a predetermined value.

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Номер записи: 33
27-06-2017 дата публикации

Power conversion apparatus

Номер: US09692307B2
Автор: Kimikazu Nakamura, Seiji Iyasu, Yuuichi HANDA
Принадлежит: Denso Corp

Power conversion apparatus converts input voltage and supplies output voltage to the electric load. The apparatus includes a semiconductor switch switches between open and closed states to regulate voltage control current for controlling output voltage, a first voltage detection section detects remote voltage being applied to the electric load as output voltage, a second voltage detection section detects a local voltage being applied to the output terminal as output voltage, a target current calculation section calculates target current which is the voltage control current target value, based on voltage deviation between target voltage which is the output voltage target value and either remote voltage or local voltage, and a switch control section controls the semiconductor switch so voltage control current becomes target current, to regulate output voltage to target voltage. The target current calculation section calculates the target current by using one of the remote or local voltage corresponds to a smaller target current.

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Номер записи: 34
09-05-2017 дата публикации

Compact structure of power-supply apparatus capable of minimizing electromagnetic noise

Номер: US09647535B2
Автор: Katsutoyo Misawa, Shotaro Yamasaki, Shuji KURAUCHI, Yuuichi HANDA, Yuuki Takemoto
Принадлежит: Denso Corp

A power-supply apparatus is provided which includes a transformer, a primary semiconductor unit, a secondary semiconductor unit, and a secondary electronic device. Each of the primary semiconductor unit and the secondary semiconductor units has a plurality of semiconductor devices installed therein. The transformer, the primary semiconductor unit, the secondary semiconductor unit, and the secondary electronic device are electrically joined through connecting conductors. The transformer is laid on the primary semiconductor unit to make a first stack. Similarly, the secondary electronic device is laid on the secondary semiconductor unit. This permits the power-supply apparatus to be reduced in overall size thereof and minimizes adverse effects of electromagnetic noise to ensure the high efficiency in power supply operation.

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Номер записи: 35
12-11-2024 дата публикации

Electric power conversion apparatus

Номер: US12143011B2
Автор: Naoto Kobayashi, Syuji KURAUCHI, Yuuichi HANDA
Принадлежит: Denso Corp

An electric power conversion apparatus has an input and output terminal, and a switch unit, and turns on and off the switch unit to transfer electric power from an electric storage unit connected to the input terminal to a power supply target connected to the output terminal. When reverse conduction current flows in the switch unit, it causes a larger conduction loss in an off state than an on state. The apparatus includes: a control unit that determines whether there is a request for increasing an amount of heat generation due to the electric power transfer, and when it is determined that there is the request, turns off the switch unit in which the reverse conduction current flows during the electric power transfer and, when it is determined that there is no request, turns on the switch unit in which the reverse conduction current flows during the electric power transfer.

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Номер записи: 36
21-03-2017 дата публикации

Power conversion apparatus and method for controlling power conversion apparatus

Номер: US09602008B1
Автор: Katsutoyo Misawa, Kenji Tomita, Kimikazu Nakamura, Seiji Iyasu, Shinya Goto, Yuuichi HANDA
Принадлежит: Denso Corp

A power conversion apparatus supplies power from a DC power supply to a capacitive load by a current input push-pull DCDC converter provided with switching elements Q 1 and Q 2 . When a capacitive load voltage is not larger than a second predetermined value, a first mode is used which turns ON one of the switching elements Q 1 and Q 2 alternated with turning OFF both. When the capacitive load voltage is larger than the second predetermined value but not larger than a first predetermined value, a second mode is used which turns ON both of the switching elements Q 1 and Q 2 , then turns ON one of them, then turns OFF both, sequentially. When the capacitive load voltage is larger than the first predetermined value, a third mode is used, turning ON both of the switching elements Q 1 and Q 2 alternated with turning ON one of them.

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Номер записи: 37
28-02-2017 дата публикации

Power supply apparatus

Номер: US09584010B2
Автор: Katsutoyo Misawa, Kenta HATAKENAKA, Yuuichi HANDA, Yuuki Takemoto
Принадлежит: Denso Corp

A power supply apparatus includes a transformer which has a primary coil and a secondary coil, a primary side semiconductor component which configures a primary side circuit connected to a side of the primary coil of the transformer, a secondary side semiconductor component which configures a secondary side circuit connected to a side of the secondary coil of the transformer, a choke coil which is connected to the secondary side semiconductor component, and a base plate on which the transformer, the primary side semiconductor component, the secondary side semiconductor component, and the choke coil are mounted. Any two of the transformer, the primary side semiconductor component, the secondary side semiconductor component, and the choke coil configure a first stacked body stacked in a normal direction of the base plate, and other two of the transformer, the primary side semiconductor component, the secondary side semiconductor component, and the choke coil configure a second stacked body stacked in the normal direction of the base plate. The power supply apparatus has a pair of first lines connecting the primary side semiconductor component and the transformer to each other, and a pair of second lines connecting the transformer and the secondary side semiconductor component to each other. The first lines and the second lines respectively have a pair of first current paths and a pair of second current paths which are arranged so as to be adjacent to each other and are configured so that currents flow in the normal direction of the base plate. At least one of the pair of the second current paths is adjacent to at least one of the pair of the first current paths in a second direction orthogonal to a first direction in which the pair of the first current paths are adjacent to each other. The first current paths and the second current paths adjacent to each other in the second direction are configured so that currents flow therethrough in directions opposite to each ...

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Номер записи: 38
04-10-2016 дата публикации

Electric power source device

Номер: US09461549B2
Автор: Katsutoyo Misawa, Kenta HATAKENAKA, Syotarou YAMASAKI, Syuji KURAUCHI, Yuuichi HANDA, Yuuki Takemoto
Принадлежит: Denso Corp

An electric power source device has a transformer, a primary-side semiconductor module, a secondary-side semiconductor module, a secondary-side electrical component, a base plate and a circuit substrate on which substrate-side electrical components are mounted. The primary-side semiconductor module has a larger exterior size than the secondary-side electrical component. The primary-side semiconductor module and the secondary-side electrical component form a stacked section. In the stacked section, the secondary-side electrical component is stacked, in a vertical direction, i.e. a direction of a normal line of a mounting surface of the base plate, on the primary-side semiconductor module. The primary-side semiconductor module is directly mounted on the mounting surface. At least a part of the substrate-side electrical components is arranged inside of the primary-side semiconductor module in a horizontal direction, and inside of a second surface of the stacked section toward the mounting surface along the normal line.

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Номер записи: 39