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:
Jun. 23, 2026

Filed:

Nov. 29, 2023
Applicant:

Chengdu Monolithic Power Systems Co., Ltd., Chengdu, CN;

Inventor:

Siran Wang, Hangzhou, CN;

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H02M 3/335 (2006.01); H02M 1/00 (2007.01);
U.S. Cl.
CPC ...
H02M 3/33561 (2013.01); H02M 1/0025 (2021.05); H02M 1/0006 (2021.05); H02M 3/33523 (2013.01);
Abstract

A control circuit, for controlling a switching converter having a primary switch, an energy storage component and a plurality of rectifiers, the control circuit having: a sample and hold circuit, configured to sample and hold a power source winding voltage provided by a power source winding of the energy storage component during when any one of the plurality of rectifiers is on, and to provide a sample&hold voltage based thereon; and a feedback circuit, configured to receive the sample&hold voltage and a power supply voltage of the control circuit, and to provide a feedback voltage based thereon; wherein the primary switch is controlled to be on and off based on the feedback voltage.


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