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. 10, 2016

Filed:

Mar. 06, 2013
Applicant:

System General Corporation, New Taipei, TW;

Inventors:

Chi-Chen Chung, Jhubei, TW;

Wei-Hsuan Huang, Taoyuan, TW;

Assignee:

SYSTEM GENERAL CORPORATION, New Taipei, TW;

Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H02M 3/335 (2006.01); G05F 1/46 (2006.01); H02M 1/08 (2006.01); H02M 1/00 (2006.01);
U.S. Cl.
CPC ...
H02M 3/335 (2013.01); G05F 1/46 (2013.01); H02M 1/08 (2013.01); H02M 3/33523 (2013.01); H02M 2001/0006 (2013.01); H02M 2001/0025 (2013.01); H02M 2001/0032 (2013.01); H02M 2001/0035 (2013.01); Y02B 70/16 (2013.01);
Abstract

A controller with power saving for a power converter includes a delay circuit, a detection circuit, an output circuit, a counter circuit, a wake-up circuit and a PWM circuit. The delay circuit determines a delay time. The detection circuit activates the delay circuit whenever an output load of the power converter is lower than a light-load threshold. The output circuit generates a power-saving signal to cease a regulation of the power converter after the delay time ends. The regulation of the power converter is resumed once the output load increases during the regulation of the power converter is being ceased. The counter circuit coupled to the delay circuit is counted by the delay circuit to determine a sleep period. The output circuit generates the power-saving signal to cease the regulation of the power converter after the sleep period ends.


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