公开(公告)号：US20220149660A1

公开(公告)日：2022-05-12

申请号：US17433744

申请日：2020-02-26

Applicant: Panasonic Intellectual Property Management Co., Ltd.

Inventor： Hideaki MIYAMOTO ,  Tsutomu SAKATA ,  Minoru OKADA ,  Takeshi HIGASHINO ,  Quang Thang DUONG ,  Shudai KAWAI

IPC: H02J50/12 ,  H02J50/40 ,  H01F38/14 ,  H02J50/70

Abstract: The operation of a wireless power transmission system is to be stabilized. A wireless power supply unit includes a power transmitting module and a power receiving module. The power transmitting module includes a transmission coil to send out AC power. The power receiving module includes: a reception coil to receive from the transmission coil at least a portion of the AC power; and a compensation circuit connected to the reception coil, the compensation circuit including at least one compensation element to counteract at least a part of a leakage reactance or an excitation reactance of a coil pair including the transmission coil and the reception coil.