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    FOREIGN OBJECT DETECTOR, POWER TRANSMITTER, POWER RECEIVER, AND WIRELESS POWER TRANSMISSION SYSTEM
    2.
    发明申请
    FOREIGN OBJECT DETECTOR, POWER TRANSMITTER, POWER RECEIVER, AND WIRELESS POWER TRANSMISSION SYSTEM 有权
    外部物体检测器，发电机，电力接收器和无线电力传输系统

    公开(公告)号：US20160149442A1

    公开(公告)日：2016-05-26

    申请号：US14904581

    申请日：2014-03-05

    Applicant: PANASONIC INTELLECTUAL PROPERTY MANAGEMENT CO., LTD.

    Inventor： Kenichi ASANUMA ,  Atsushi YAMAMOTO ,  Hiroshi YAMAMOTO

    IPC: H02J50/60 ,  H02J5/00 ,  G01V3/10

    CPC classification number: H02J50/60 ,  G01V3/10 ,  H02J5/005 ,  H02J7/025 ,  H02J50/12

    Abstract: A foreign object detector includes: an oscillator circuit 100 having a coil 110 and resonant capacitors Cx, Cy, the oscillator circuit 100 being configured to output a voltage which includes an AC component and a DC component, the AC component having a positive cycle and a negative cycle; and an electric circuit for sensing a variation of the AC component and a variation of the DC component in the voltage output from the oscillator circuit 100 when a foreign object approaches the coil 110.

    Abstract translation: 异物检测器包括：具有线圈110和谐振电容器Cx，Cy的振荡器电路100，振荡器电路100被配置为输出包括AC分量和DC分量的电压，AC分量具有正周期和 负循环; 以及用于感测当异物接近线圈110时从振荡器电路100输出的电压中的交流分量的变化和直流分量的变化的电路。

    POWER TRANSMISSION SYSTEM PREVENTING POWER TRANSMISSION EFFICIENCY FROM DEGRADING DUE TO DELAY
    4.
    发明申请
    POWER TRANSMISSION SYSTEM PREVENTING POWER TRANSMISSION EFFICIENCY FROM DEGRADING DUE TO DELAY 审中-公开

    公开(公告)号：US20200006981A1

    公开(公告)日：2020-01-02

    申请号：US16490500

    申请日：2018-02-26

    Applicant: PANASONIC INTELLECTUAL PROPERTY MANAGEMENT CO., LTD.

    Inventor： Atsushi YAMAMOTO ,  Masahiro YAMAOKA ,  Taiki NISHIMOTO ,  Motohiko FUJIMURA

    IPC: H02J13/00 ,  H02J3/08 ,  H02M7/48

    Abstract: A control circuit of a code modulator sets first to third states to a code modulation circuit. In first state, first and fourth switch circuits are on, and second and third switch circuits are off. In second state, first and fourth switch circuits are off, and second and third switch circuits are on. In third state, all first to fourth switch circuits are on during transition from the first to second state, and vice versa. A control circuit of a code demodulator sets fourth to sixth states to a code demodulation circuit. In fourth state, fifth and eighth switch circuits are off, and sixth and seventh switch circuits are on. In fifth state, fifth and eighth switch circuits are on, and sixth and seventh switch circuits are off. In sixth state, all fifth to eighth switch circuits are on during transition from fourth to fifth state, and vice versa.

    POWER CONVERTER APPARATUS INCLUDING LLC RESONANT CIRCUITS AND WIDE RANGE OF OUTPUT VOLTAGE WITH HIGHER EFFICIENCY
    6.
    发明申请
    POWER CONVERTER APPARATUS INCLUDING LLC RESONANT CIRCUITS AND WIDE RANGE OF OUTPUT VOLTAGE WITH HIGHER EFFICIENCY 有权

    公开(公告)号：US20210242781A1

    公开(公告)日：2021-08-05

    申请号：US17050661

    申请日：2019-04-16

    Applicant: PANASONIC INTELLECTUAL PROPERTY MANAGEMENT CO., LTD.

    Inventor： Motohiko FUJIMURA ,  Atsushi YAMAMOTO

    IPC: H02M3/337 ,  H02M3/338

    Abstract: A power converter apparatus is provided with: a plurality of leg circuits, each including two switch circuits connected in series between input terminals; a transformer including a primary winding and a secondary winding, the primary winding having a first terminal and a second terminal; and at least one capacitor. The at least one capacitor is connected between the first terminal or the second terminal of the primary winding of the transformer, and a node between the two switch circuits in at least one leg circuit among the plurality of leg circuits. The first terminal of the primary winding of the transformer is connected to at least two nodes between the switch circuits in at least two first leg circuits among the plurality of leg circuits, via at least two first circuit portions having at least one of capacitances and inductances different from each other, respectively.

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