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:
Feb. 04, 2025

Filed:

Oct. 19, 2022
Applicant:

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

Inventors:

Wangmiao Hu, Hangzhou, CN;

Lijie Jiang, Hangzhou, CN;

Fangyu Zhang, Hangzhou, CN;

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H02M 3/156 (2006.01); H02M 1/00 (2006.01); H02M 1/32 (2007.01);
U.S. Cl.
CPC ...
H02M 3/1566 (2021.05); H02M 1/0009 (2021.05); H02M 1/0025 (2021.05); H02M 1/325 (2021.05); H02M 3/156 (2013.01);
Abstract

A control circuit for a DC-DC converter has an over-current comparison circuit, an adaptive voltage position (AVP) control circuit and a switching control circuit. The over-current comparison circuit provides an over-current comparison signal by comparing an output current with a current limit value. The AVP control circuit provides a position signal based on a voltage identification code, an output voltage, an output current and the over-current comparison signal. The switching control circuit controls the DC-DC converter based on the position signal. When the output current is smaller than the current limit value, the output voltage varies along a first voltage position curve, and otherwise, the output voltage varies along a second voltage position curve.


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