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:
Sep. 29, 2020

Filed:

Apr. 10, 2019
Applicant:

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

Inventors:

Suhua Luo, Chengdu, CN;

Qian Ouyang, Chengdu, CN;

Wei Yuan, Chengdu, CN;

Pengpeng Ma, Chengdu, CN;

Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H02M 1/32 (2007.01); H02M 1/08 (2006.01); H02M 3/156 (2006.01); H02M 1/00 (2006.01);
U.S. Cl.
CPC ...
H02M 1/32 (2013.01); H02M 1/08 (2013.01); H02M 3/156 (2013.01); H02M 2001/0048 (2013.01);
Abstract

A current threshold regulation method is used in a switching converter with a tank element and a transistor. The current threshold regulation method includes: detecting whether the input voltage is lower than an input under voltage threshold and generating an input under voltage indication signal; detecting whether the output voltage is lower than an output under voltage threshold and generating an output under voltage indication signal; generating a current threshold based on the input under voltage indication signal and output under voltage indication signal; comparing a current flowing though the tank element with the current threshold and generating a current comparison signal; and generating a control signal based on the current comparison signal to control the transistor.


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