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:
May. 05, 2026

Filed:

Feb. 28, 2024
Applicant:

Joulwatt Technology (Shanghai) Co., Ltd., Shanghai, CN;

Inventor:

Linjue Li, Hangzhou, CN;

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H02M 3/158 (2006.01); H02M 1/00 (2006.01); H02M 1/44 (2007.01); H02M 3/156 (2006.01); H03K 4/06 (2006.01);
U.S. Cl.
CPC ...
H02M 3/158 (2013.01); H02M 1/0025 (2021.05); H02M 1/44 (2013.01); H02M 3/156 (2013.01); H03K 4/06 (2013.01);
Abstract

A control circuit for a power converter includes an error amplifier, a compensation circuit, a comparator, and a controller. The error amplifier generates an error amplification signal according to a first reference signal and a feedback signal. The compensation circuit compensates the error amplification signal to obtain a compensation signal that is a ripple signal, The controller generates a switching control signal according to a predetermined clock pulse signal and a comparison signal of the compensation signal and the feedback signal. The clock pulse signal being used to determine a frequency of the switching control signal, and the comparison signal being used to determine a duty cycle of the switching control signal.


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