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2034 条记录 (耗时 0.027 秒)

    POWER CONVERSION DEVICE AND POWER CONVERSION SYSTEM
    61.
    发明申请
    POWER CONVERSION DEVICE AND POWER CONVERSION SYSTEM 审中-公开

    公开(公告)号：US20190173387A1

    公开(公告)日：2019-06-06

    申请号：US16208395

    申请日：2018-12-03

    申请人： SHARP KABUSHIKI KAISHA

    发明人： HIROKI TANAKA

    IPC分类号： H02M3/335 ,  H02M1/08

    CPC分类号： H02M3/33584 ,  H02M1/08 ,  H02M1/34 ,  H02M7/5387

    摘要： In a power conversion device, a voltage at an input/output terminal of a primary-side circuit is divided by a first capacitor and a second capacitor, and a center tap provided to the primary winding of a transformer is connected to a node between the first capacitor and the second capacitor. With this, an intermediate voltage can be output. Further, transmission power can be controlled under a state where a voltage at the first capacitor and a voltage at the second capacitor are balanced, through adjustment of switching phases of a first full bridge circuit that is the primary-side circuit and a second full bridge circuit that is a secondary-side circuit.

    POWER CONVERSION APPARATUS
    62.
    发明申请
    POWER CONVERSION APPARATUS 审中-公开

    公开(公告)号：US20190123657A1

    公开(公告)日：2019-04-25

    申请号：US16090145

    申请日：2017-03-10

    申请人： DENSO CORPORATION

    发明人： Tomoya MIURA ,  Yuu YAMAHIRA ,  Kazuma FUKUSHIMA

    IPC分类号： H02M7/00 ,  H02M1/088 ,  H02M7/5387 ,  H02P27/06

    CPC分类号： H02M7/003 ,  H01L23/46 ,  H02M1/088 ,  H02M7/5387 ,  H02P27/06

    摘要： A plurality of semiconductor elements and a control circuit unit are provided. The plurality of semiconductor elements which are connected in parallel are configured to perform switching at the same time. The control circuit unit includes a drive circuit connected to the plurality of semiconductor elements which perform operation at the same time, control wirings and reference wirings. The control wirings connect control electrodes of the semiconductor elements to the drive circuit. The reference wirings connect reference electrodes of the semiconductor elements to the drive circuit. A parasitic inductance in the reference wiring is made smaller than a parasitic inductance in the control wiring.

    WIRELESS POWER TRANSMITTER CIRCUIT AND CONTROL CIRCUIT AND CONTROL METHOD THEREOF
    64.
    发明申请
    WIRELESS POWER TRANSMITTER CIRCUIT AND CONTROL CIRCUIT AND CONTROL METHOD THEREOF 审中-公开

    公开(公告)号：US20180375380A1

    公开(公告)日：2018-12-27

    申请号：US15984291

    申请日：2018-05-18

    申请人： RICHTEK TECHNOLOGY CORPORATION

    发明人： Kuo-Chi Liu ,  Ke-Horng Chen

    IPC分类号： H02J50/12 ,  H02M7/5387 ,  H02M1/088

    CPC分类号： H02J50/12 ,  H02M1/088 ,  H02M7/5387 ,  H02M2001/0048

    摘要： A wireless power transmitter circuit includes a power converter circuit, a power inverter circuit, an LC circuit, a resonant transmitter circuit, and a control circuit. The LC circuit includes an inductor and a capacitor, wherein an reactance of the LC circuit is substantially zero. The LC circuit is for converting the AC output current to a coil current. The resonant transmitter circuit includes at least one transmitter coil and a variable capacitor circuit, wherein the coil current flows through the at least one transmitter coil to generate a resonant wireless power. The control circuit generates a capacitance adjustment signal for adjusting an impedance of the variable capacitor circuit, such that the resonant transmitter circuit substantially operates in an impedance matched condition.

    POWER CONVERTER
    65.
    发明申请
    POWER CONVERTER 审中-公开

    公开(公告)号：US20180342960A1

    公开(公告)日：2018-11-29

    申请号：US15991098

    申请日：2018-05-29

    申请人： DENSO CORPORATION

    发明人： Yohei KONDO

    IPC分类号： H02M7/00 ,  H05K7/02 ,  H05K7/14 ,  H02M7/46

    CPC分类号： H02M7/003 ,  H02M1/088 ,  H02M1/32 ,  H02M7/46 ,  H02M7/5387 ,  H02M2001/327 ,  H05K7/02 ,  H05K7/1432

    摘要： In a power converter including a plurality of switches, a plurality of freewheeling diodes each electrically connected in anti-parallel with a respective one of the switches, a freewheeling current input electrically connected to an output terminal of each of the switches, and a freewheeling current output electrically connected to an input terminal of each of the switches, a plurality of freewheeling current paths are defined, each of which is an electrical path passing through a respective one of the freewheeling diodes from the freewheeling current input to the freewheeling current output. At least one of the freewheeling current paths is a maximum path having a maximum impedance among the freewheeling current paths. A voltage drop across the freewheeling diode included in the maximum path is less than a voltage drop across each of the other freewheeling diodes when a freewheeling current flows through each of the plurality of freewheeling diodes.

    ELECTRICAL POWER CONVERSION APPARATUS
    66.
    发明申请
    ELECTRICAL POWER CONVERSION APPARATUS 审中-公开

    公开(公告)号：US20180342959A1

    公开(公告)日：2018-11-29

    申请号：US15990954

    申请日：2018-05-29

    申请人： DENSO CORPORATION

    发明人： Naoki HIRASAWA ,  Ryota TANABE ,  Taijiro MOMOSE

    IPC分类号： H02M7/00 ,  H01G4/228 ,  H01G4/38 ,  H02G5/00 ,  H01L29/739 ,  H02M7/537 ,  H01G4/40 ,  H01L23/64 ,  H02B1/20

    CPC分类号： H02M7/003 ,  B60L2210/40 ,  H01G4/228 ,  H01G4/38 ,  H01G4/40 ,  H01L23/645 ,  H01L29/7393 ,  H02B1/20 ,  H02G5/005 ,  H02M3/158 ,  H02M7/537 ,  H02M7/5387 ,  H02M2001/007

    摘要： An electrical power conversion apparatus includes a high-voltage bus bar, a low-voltage bus bar, and a relay bus bar which are integrated together in the form of a bus bar assembly. The high-voltage bus bar includes semiconductor-side high-voltage terminals and capacitor-side high-voltage terminals. The low-voltage bus bar includes semiconductor-side low-voltage terminals and capacitor-side low-voltage terminals. The relay bus bar includes a reactor-side relay terminal and a capacitor-side relay terminal 532. The capacitor-side high-voltage terminals, the capacitor-side low-voltage terminals, and the capacitor-side relay terminal are arranged in the form of a terminal array. The capacitor-side high-voltage terminals and the capacitor-side low-voltage terminals are arranged adjacent each other. The capacitor-side relay terminal is located at an end of an array of the capacitor-side high-voltage terminals and the capacitor-side low-voltage terminals. With these arrangements, the electrical power conversion apparatus is capable of reducing the inductance and facilitating the assembling and downsizing thereof.

    POWER MODULE
    68.
    发明申请
    POWER MODULE 审中-公开

    公开(公告)号：US20180301973A1

    公开(公告)日：2018-10-18

    申请号：US16018802

    申请日：2018-06-26

    申请人： FUJI ELECTRIC CO., LTD.

    发明人： Masashi AKAHANE

    IPC分类号： H02M1/08 ,  H02M7/5387 ,  H02M1/32

    CPC分类号： H02M1/08 ,  H02M1/32 ,  H02M7/538 ,  H02M7/5387 ,  H02M2001/0009

    摘要： A power module including first and second switching elements connected in a half-bridge configuration, an integrated circuit including high-side and low-side circuits that respectively drive the first and second switching elements, high-side and low-side programmable circuits that are respectively configured to implement first and second logic functions or parameters to be used by the high-side and low-side circuits. The integrated circuit includes a write port that receives data to be written to the high-side and low-side programmable circuits, internal wiring that connects the high-side and low-side programmable circuits in a daisy chain configuration, and a level shifter that is provided in the internal wiring connecting the low-side programmable circuit to the high-side programmable circuit, and that connects a low-side signal system and a high-side signal system.