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    POWER TRANSMISSION COIL
    2.
    发明申请
    POWER TRANSMISSION COIL 有权
    电力传输线圈

    公开(公告)号：US20150294784A1

    公开(公告)日：2015-10-15

    申请号：US14413582

    申请日：2013-07-10

    Applicant: Panasonic Intellectual property Management Co., Ltd.

    Inventor： Koji Higashiyama ,  Steffen Werner

    IPC: H01F38/14 ,  H01F27/40 ,  H02J5/00 ,  H01F27/28

    CPC classification number: H01F38/14 ,  H01F27/02 ,  H01F27/2804 ,  H01F27/2823 ,  H01F27/402 ,  H02J7/025 ,  H02J17/00 ,  H02J50/12 ,  H02J50/60 ,  H02J50/70

    Abstract: A power transmission coil includes a plane coil including a no-wire portion and a coil wound about a no-wire portion, a cover for covering the plane coil from above, a first foreign-matter-detecting unit provided at the no-wire portion, and a power control circuit electrically connected to the plane coil and the first foreign-matter-detecting unit. An upper surface of the cover has a first inclining portion inclining toward the first foreign-matter-detecting unit. The power control circuit transmits power through the plane coil if a foreign matter is not detected in the no-wire portion based on an output from the first foreign-matter-detecting unit. The power control circuit is configured to stop transmitting power through the plane coil if foreign matter is detected in the no-wire portion based on an output from the first foreign-matter-detecting unit. This power transmission coil is capable of detecting a small foreign matter that may generate heat.

    Abstract translation: 电力传输线圈包括：平面线圈，包括无线部分和缠绕在无线部分上的线圈;覆盖从上方平面线圈的盖;第一异物检测单元，设置在无线部分 以及电连接到所述平面线圈和所述第一异物检测单元的电力控制电路。 盖的上表面具有朝向第一异物检测单元倾斜的第一倾斜部。 根据来自第一异物检测单元的输出，如果在无线部分中没有检测到异物，则功率控制电路通过平面线圈传输电力。 功率控制电路被配置为基于来自第一异物检测单元的输出，在无线部分中检测到异物的情况下，停止通过平面线圈的发射功率。 该输电线圈能够检测可能产生热的小的异物。

    Snubber circuit and power conversion system using same
    3.
    发明授权
    Snubber circuit and power conversion system using same 有权

    公开(公告)号：US10917004B2

    公开(公告)日：2021-02-09

    申请号：US16471325

    申请日：2017-12-12

    Applicant: PANASONIC INTELLECTUAL PROPERTY MANAGEMENT CO., LTD.

    Inventor： Koji Higashiyama ,  Fumito Kusama

    IPC: H02M3/335 ,  H02M1/34 ,  H02M5/22

    Abstract: A snubber circuit includes a clamp circuit and a voltage conversion circuit. The clamp circuit is configured to absorb electrical energy of a main circuit from a pair of secondary-side voltage points on a secondary side of the main circuit to clamp a secondary-side voltage. The main circuit is of insulating type and is configured to perform electric power conversion. The voltage conversion circuit which is of insulating type is electrically connected to a pair of primary-side voltage points on a primary side of the main circuit and is configured to subject, to direct-current conversion, the direct-current voltage generated by the clamp circuit and output the direct-current voltage to the pair of primary-side voltage points. The voltage conversion circuit includes a transformer, a first capacitance component electrically connected to a primary winding wire of the transformer, and a second capacitance component electrically connected to a secondary winding wire of the transformer.

    Snubber circuit and power conversion system including same
    4.
    发明授权
    Snubber circuit and power conversion system including same 审中-公开

    公开(公告)号：US10673320B2

    公开(公告)日：2020-06-02

    申请号：US16468220

    申请日：2017-12-08

    Applicant: PANASONIC INTELLECTUAL PROPERTY MANAGEMENT CO., LTD.

    Inventor： Koji Higashiyama ,  Fumito Kusama

    IPC: H02M1/34 ,  H02M3/335 ,  H02M7/5387

    Abstract: When a magnitude of a voltage between a pair of first voltage points in a main circuit exceeds a first clamp value, a first clamp circuit absorbs electrical energy of the main circuit from the pair of first voltage points to clamp the voltage to the first clamp value. When a magnitude of a voltage between a pair of second voltage points in the main circuit falls below a second clamp value, a second clamp circuit injects electrical energy to the main circuit from the pair of second voltage points to clamp the voltage to the second clamp value. A voltage conversion circuit performs voltage conversion between a first clamp voltage defining a first clamp value and a second clamp voltage defining a second clamp value.

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