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    Power converter with controller alternately turning on switches
    1.
    发明授权
    Power converter with controller alternately turning on switches 有权

    公开(公告)号：US12149179B2

    公开(公告)日：2024-11-19

    申请号：US17709806

    申请日：2022-03-31

    Applicant: DENSO CORPORATION

    Inventor： Seiji Iyasu ,  Syuji Kurauchi ,  Yuuichi Handa

    IPC: H02M3/335 ,  H02M1/00

    Abstract: 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.

    Power conversion apparatus and method for controlling power conversion apparatus
    2.
    发明授权
    Power conversion apparatus and method for controlling power conversion apparatus 有权

    公开(公告)号：US09602008B1

    公开(公告)日：2017-03-21

    申请号：US14857023

    申请日：2015-09-17

    Applicant: DENSO CORPORATION

    Inventor： Kenji Tomita ,  Kimikazu Nakamura ,  Shinya Goto ,  Katsutoyo Misawa ,  Yuuichi Handa ,  Seiji Iyasu

    IPC: H02M3/335

    CPC classification number: H02M3/33507 ,  H02M3/3378

    Abstract: 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 Q1 and Q2. 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 Q1 and Q2 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 Q1 and Q2, 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 Q1 and Q2 alternated with turning ON one of them.

    Electric power source device equipped with transformer
    3.
    发明授权
    Electric power source device equipped with transformer 有权
    配备变压器的电源装置

    公开(公告)号：US09293994B2

    公开(公告)日：2016-03-22

    申请号：US14338783

    申请日：2014-07-23

    Applicant: DENSO CORPORATION

    Inventor： Shuji Kurauchi ,  Katsutoyo Misawa ,  Yuuki Takemoto ,  Yuuichi Handa ,  Shotaro Yamasaki

    IPC: H02M3/335 ,  H05K7/02 ,  H05K7/14 ,  H02M3/00

    CPC classification number: H02M3/335 ,  H01F27/06 ,  H02M3/00 ,  H05K7/1432

    Abstract: 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.

    Abstract translation: 电源装置具有变压器，初级侧半导体部件，二次侧半导体部件，扼流线圈，基板和第一电路基板以及一个以上的第二电路基板。 变压器具有初级侧线圈和次级侧线圈。 初级侧半导体元件形成连接到初级侧线圈的初级侧电路。 次级侧半导体部件形成与次级侧线圈连接的次级侧电路。 扼流线圈具有用于平滑输出电压的平滑电路。 变压器，初级侧半导体部件，次级侧半导体部件和扼流线圈形成在基板上。 第一电路基板平行于基板设置。 第二电路基板平行于第一电路基板的法线布置。

    Power conversion apparatus
    6.
    发明授权
    Power conversion apparatus 有权

    公开(公告)号：US09692307B2

    公开(公告)日：2017-06-27

    申请号：US14863801

    申请日：2015-09-24

    Applicant: DENSO CORPORATION

    Inventor： Seiji Iyasu ,  Kimikazu Nakamura ,  Yuuichi Handa

    IPC: H02M3/335 ,  H02M3/337 ,  H02M1/00 ,  H02M1/32

    CPC classification number: H02M3/33515 ,  H02M3/3353 ,  H02M3/33569 ,  H02M3/3378 ,  H02M2001/0019 ,  H02M2001/325

    Abstract: 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.

    AC-DC CONVERTER WITH OUTPUT POWER SUPPRESSION
    7.
    发明申请
    AC-DC CONVERTER WITH OUTPUT POWER SUPPRESSION 审中-公开

    公开(公告)号：US20170133942A1

    公开(公告)日：2017-05-11

    申请号：US15414654

    申请日：2017-01-25

    Applicant: DENSO CORPORATION

    Inventor： Yuuichi Handa ,  Seiji Iyasu ,  Kimikazu Nakamura

    IPC: H02M3/335 ,  H02M1/08 ,  H02M1/32

    CPC classification number: H02M3/33546 ,  H02M1/08 ,  H02M1/32 ,  H02M1/4225 ,  H02M1/4233 ,  H02M3/1584 ,  H02M3/33507 ,  H02M3/33569 ,  H02M2001/0009 ,  H02M2001/007 ,  Y02B70/126

    Abstract: 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.

    Power conversion apparatus
    8.
    发明授权
    Power conversion apparatus 有权

    公开(公告)号：US12015351B2

    公开(公告)日：2024-06-18

    申请号：US17730417

    申请日：2022-04-27

    Applicant: DENSO CORPORATION

    Inventor： Naoto Kobayashi ,  Syuji Kurauchi ,  Yuuichi Handa

    IPC: H02M3/335 ,  H02M1/32 ,  H02M3/158 ,  B60R16/033

    CPC classification number: H02M3/33573 ,  H02M1/32 ,  H02M3/158 ,  H02M3/33576 ,  B60R16/033

    Abstract: 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.

    Electric power source device
    9.
    发明授权
    Electric power source device 有权
    电源装置

    公开(公告)号：US09461549B2

    公开(公告)日：2016-10-04

    申请号：US14339859

    申请日：2014-07-24

    Applicant: DENSO CORPORATION

    Inventor： Yuuki Takemoto ,  Katsutoyo Misawa ,  Yuuichi Handa ,  Syotarou Yamasaki ,  Syuji Kurauchi ,  Kenta Hatakenaka

    IPC: H01F5/00 ,  H02M3/00 ,  H02M3/335 ,  B60L11/00 ,  H02M3/337 ,  H05K1/18 ,  H05K1/02

    CPC classification number: H02M3/33507 ,  B60L11/00 ,  B60L15/007 ,  B60L2210/10 ,  H01F5/00 ,  H02M3/00 ,  H02M3/337 ,  H05K1/0263 ,  H05K1/18 ,  H05K2201/1003 ,  H05K2201/10166 ,  H05K2201/10174 ,  H05K2201/10515 ,  Y02T10/645 ,  Y02T10/7216

    Abstract: 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.

    Abstract translation: 电源装置具有安装有基板侧电气部件的变压器，初级侧半导体模块，二次侧半导体模块，二次侧电气部件，基板以及电路基板。 初级侧半导体模块具有比次级侧电气部件更大的外部尺寸。 初级侧半导体模块和次级侧电气部件形成堆叠部。 在堆叠部分中，次级侧电气元件在初级侧半导体模块上沿垂直方向，即基板的安装表面的法线方向堆叠。 初级侧半导体模块直接安装在安装面上。 基板侧电气部件的至少一部分在水平方向配置在一次侧半导体模块的内部，在堆叠部的第二面的内侧沿着法线配置在安装面上。

    Electric power converter
    10.
    发明授权
    Electric power converter 有权
    电力转换器

    公开(公告)号：US09160237B2

    公开(公告)日：2015-10-13

    申请号：US13936710

    申请日：2013-07-08

    Applicant: DENSO CORPORATION ,  NIPPON SOKEN, INC.

    Inventor： Hideki Itou ,  Yuuichi Handa ,  Yuji Hayashi

    IPC: H02M3/335 ,  H02M1/44

    CPC classification number: H02M3/33507 ,  H02M1/44 ,  H02M3/33569

    Abstract: 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.

    Abstract translation: 电力转换器具有开关电路部分，变压器，整流器和噪声滤波元件。 整流器连接到变压器的次级线圈。 噪声电流流过的闭路由次级线圈，整流器和噪声滤波元件形成。 变压器和噪声滤波元件设置在彼此相邻的位置。 次级线圈和噪声滤波元件通过作为次级线圈的端子的线圈的端子和作为噪声滤波元件的端子的滤波器的端子彼此电连接。 用于线圈的端子和用于滤波器的端子设置在变压器和噪声滤波元件之间的位置。

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