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. 09, 2026
Filed:
Sep. 08, 2023
Shenzhen Rspower Technology Co., Ltd., Shenzhen, CN;
SHENZHEN RSPOWER TECHNOLOGY CO., LTD., Shenzhen, CN;
Abstract
A control circuit for a bridgeless power factor correction (PFC) circuit, a control method therefor, and a power supply system are provided. The control circuit includes a polarity determination module and a logic control module. The polarity determination module is configured to receive a sampling signal of an AC input voltage of the bridgeless PFC circuit. The polarity determination module is also configured to output a first digital signal when the sampling signal is a positive voltage signal, and output a second digital signal when the sampling signal is a negative voltage signal. The logic control module is configured to output a first driving signal to the bridgeless PFC circuit, when receiving the first digital signal and the preset pulse signal having a first level, and output a second driving signal to the bridgeless PFC circuit, when receiving the second digital signal and the preset pulse signal having a second level.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile