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:
Apr. 05, 2022
Filed:
Nov. 25, 2020
Applicant:
Silergy Semiconductor Technology (Hangzhou) Ltd, Hangzhou, CN;
Inventors:
Chaojun Chen, Hangzhou, CN;
Jian Deng, Hangzhou, CN;
Assignee:
Silergy Semiconductor Technology (Hangzhou) LTD, Hangzhou, CN;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H02M 3/335 (2006.01); H02M 1/088 (2006.01);
U.S. Cl.
CPC ...
H02M 3/33592 (2013.01); H02M 1/088 (2013.01); H02M 3/33573 (2021.05);
Abstract
A control circuit for controlling a synchronous rectification switch of a resonant converter, where in a switching cycle, the control circuit is configured to: delay a first time period from a first moment; control the synchronous rectification switch to be turned on when a drain-source voltage of the synchronous rectification switch reaches a first threshold after the first time period; and where the first time period is generated based on an operating state of the synchronous rectification switch in a previous switching cycle.