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:
Jun. 10, 2025
Filed:
Jul. 03, 2023
Applicant:
Huawei Digital Power Technologies Co., Ltd., Shenzhen, CN;
Inventors:
Ken Chin, Shenzhen, CN;
Shanglin Mo, Dongguan, CN;
Shuaibing Wang, Dongguan, CN;
Liangyun Kang, Shenzhen, CN;
Assignee:
Huawei Digital Power Technologies Co., Ltd., Shenzhen, CN;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H02M 1/42 (2007.01); H02M 1/00 (2007.01);
U.S. Cl.
CPC ...
H02M 1/4233 (2013.01); H02M 1/0038 (2021.05);
Abstract
A noise suppression method and apparatus for a totem pole power factor correction (PFC) circuit and an electronic device are provided. In response to a determination that an alternating current of the totem pole PFC circuit is switched at a zero crossing, a control signal is sent to a switch that enables a PFC inductor in the totem pole PFC circuit to charge or discharge. After the switch is turned off for a first period of time, the switch is turned on again for a second period of time.