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.

Date of Patent:
Apr. 01, 2025

Filed:

Aug. 02, 2023
Applicant:

On-bright Electronics (Shanghai) Co., Ltd., Shanghai, CN;

Inventors:

Chunsheng Zhao, Shanghai, CN;

Yaming Cao, Shanghai, CN;

Lieyi Fang, Shanghai, CN;

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H02M 3/335 (2006.01);
U.S. Cl.
CPC ...
H02M 3/33592 (2013.01); H02M 3/33515 (2013.01);
Abstract

System and method for controlling synchronous rectification. For example, the system for controlling synchronous rectification includes: a switch including a first switch terminal configured to receive a first voltage, the switch further including a second switch terminal and being configured to be closed or opened by a control signal; a voltage generator configured to receive a second voltage from the second switch terminal and generate a third voltage based at least in part on the second voltage; a filter circuit including a resistor and a capacitor, the filter circuit being configured to receive the second voltage from the second switch terminal and generate a fourth voltage based at least in part on the second voltage; a first comparator configured to receive the third voltage and the fourth voltage and generate a first comparison signal based at least in part on the third voltage and the four voltage.


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