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:
Aug. 13, 2019

Filed:

Jan. 29, 2016
Applicant:

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

Inventors:

Min Xu, Hangzhou, CN;

Qiming Zhao, Hangzhou, CN;

Xiaoqing Li, Hangzhou, CN;

Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H02J 7/00 (2006.01);
U.S. Cl.
CPC ...
H02J 7/007 (2013.01); H02J 7/0052 (2013.01); H02J 2007/0059 (2013.01); H02J 2007/0096 (2013.01);
Abstract

A battery charging system has a switching circuit and a control circuit. The switching circuit has a first switch, and the control circuit has a plurality of analog control loops and a digital control unit. Each of the analog control loops provides a loop control signal based on a corresponding feedback signal, a corresponding reference signal and a slope compensation signal. The digital control unit provides a switching control signal to control the first switch based on the plurality of analog control loops and a time period control signal, and the digital control unit turns ON or turns OFF the first switch automatically in response to one of the plurality of analog control loops.


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