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. 23, 2025
Filed:
Feb. 23, 2023
Huawei Digital Power Technologies Co., Ltd., Shenzhen, CN;
Ken Chin, Shenzhen, CN;
Yuanjun Liu, Shenzhen, CN;
Zhixiang Hu, Dongguan, CN;
Wei Zhang, Shenzhen, CN;
HUAWEI DIGITAL POWER TECHNOLOGIES CO., LTD., Shenzhen, CN;
Abstract
A high power factor rectifier circuit includes a totem pole power factor correction (PFC) circuit, a sampling resistor, a power suppl a PFC controller, and a filter. The totem pole PFC circuit includes two bridge arm units connected in parallel between a first parallel connection point and a second parallel connection point. One end of the sampling resistor is connected to the first parallel connection point and a first reference ground, and the other end of the sampling resistor is separately connected to a sampling voltage input terminal of the PFC controller and a second reference ground. A grounding terminal of the PFC controller is connected to the first reference ground. A power output terminal of the power supply is connected to a power input terminal of the PFC controller using the filter.