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:
Nov. 10, 2020

Filed:

Oct. 22, 2019
Applicant:

Silergy Semiconductor Technology (Hangzhou) Ltd, Hangzhou, Zhejiang Province, CN;

Inventors:

Hongbin Lai, Hangzhou, CN;

Jianxin Wang, Hangzhou, CN;

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H05B 45/37 (2020.01); H02M 3/335 (2006.01); H05B 45/10 (2020.01); H02M 7/06 (2006.01); H02M 1/00 (2006.01); H02M 1/32 (2007.01); H02M 3/156 (2006.01);
U.S. Cl.
CPC ...
H05B 45/37 (2020.01); H02M 3/335 (2013.01); H02M 3/33523 (2013.01); H02M 3/33576 (2013.01); H05B 45/10 (2020.01); H02M 1/32 (2013.01); H02M 3/156 (2013.01); H02M 7/06 (2013.01); H02M 2001/007 (2013.01); H02M 2001/0087 (2013.01);
Abstract

A power supply circuit can include: a constant current control circuit configured to receive a first voltage and a first current from a power supply, and to generate a second voltage and a second current that are substantially constant; a shunt circuit, where when the second current is greater than the output current, the shunt current circuit is configured to shunt the second current, and when the second current is less than or equal to the output current, the shunt circuit stops operating; and an energy storage circuit, where when the second current is greater than the output current, the energy storage circuit is configured to store energy, and when the second current is less than or equal to the output current, the energy storage circuit is configured to release energy and provide power for the load together with the constant current control circuit.


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