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:
Jul. 14, 2015

Filed:

Aug. 04, 2014
Applicant:

Power Integrations, Inc., San Jose, CA (US);

Inventors:

Guangchao Darson Zhang, San Jose, CA (US);

Yury Gaknoki, San Jose, CA (US);

Mingming Mao, Saratoga, CA (US);

Assignee:

Power Integrations, Inc., San Jose, CA (US);

Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H02M 3/156 (2006.01); H02M 3/335 (2006.01); H02M 1/00 (2007.01);
U.S. Cl.
CPC ...
H02M 3/33507 (2013.01); H02M 2001/0035 (2013.01); Y02B 70/16 (2013.01);
Abstract

A controller for a power converter includes a drive circuit coupled to generate a drive signal in response to an error signal representative of a load of the power converter. The drive circuit includes a pulse skipping circuit coupled to generate a blanking signal in response to the error signal. The pulse skipping circuit includes an enable circuit and a blanking circuit. The enable circuit is coupled to output an enable signal in response to the error signal. The blanking circuit is coupled to output the blanking signal in response to the enable signal and a ramp signal. The ramp signal is generated in response to the error signal. A duration of the blanking signal corresponds to a length of time for the ramp signal to reach a reference signal. The length of time is responsive to the error signal.


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