The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Sep. 02, 2025
Filed:
Jan. 28, 2022
Chengdu Xpowerit Technologies Co., Ltd., Chengdu, CN;
Yiqiang Yu, Chengdu, CN;
Chengdu Xpowerit Technologies Co., Ltd., Chengdu, CN;
Abstract
A magnetic resonance coupling (MRC) wireless charging device based on a differential structure is provided. The device includes a magnetic resonance transmitter module and a magnetic resonance receiver module communicatively connected to the magnetic resonance transmitter module, where the magnetic resonance transmitter module includes a differential amplifier circuit, a plurality of transmitter-side differential filter circuits, a transmitter-side differential matching circuit and a transmitter coil that are sequentially and communicatively connected; the magnetic resonance receiver module includes a receiver coil, a receiver-side differential matching circuit, a plurality of receiver-side differential filter circuits and a current-doubler rectifier circuit that are sequentially and communicatively connected; and the transmitter coil is communicatively connected to the receiver coil. The MRC wireless charging system based on a differential structure can effectively reduce the overall electromagnetic interference and has a low working voltage and low requirements on withstanding voltages and powers of the devices.