公开(公告)号：US20220337094A1

公开(公告)日：2022-10-20

申请号：US17852686

申请日：2022-06-29

Applicant: Huawei Digital Power Technologies Co., Ltd.

Inventor： Baoshan WU ,  Chengliang ZHANG ,  Donghao WU ,  Wei LU

IPC: H02J50/12 ,  H02J50/80 ,  H02J50/90

Abstract: A wireless electric energy transmission system is provided, including a transmitter and a receiver. The transmitter includes a DC/AC inverter circuit, a first inductor, and a first capacitor that are connected in series. The transmitter is configured to: detect a value of a resonant frequency of the transmitter; detect a value of a coupling coefficient between the transmitter and the receiver; obtain a value of a constant-voltage operating frequency of the transmitter through calculation based on the resonant frequency and the coupling coefficient; and control an operating frequency of the DC/AC inverter circuit based on the constant-voltage operating frequency obtained through calculation.