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:
Jun. 14, 2016

Filed:

Apr. 22, 2014
Applicant:

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

Inventors:

Mingming Mao, Saratoga, CA (US);

Ricardo Luis Janezic Pregitzer, Campbell, CA (US);

Tiziano Pastore, Los Gatos, CA (US);

Michael Yue Zhang, Mountain View, CA (US);

Assignee:

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

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H02M 3/335 (2006.01); H02M 5/293 (2006.01); H05B 33/08 (2006.01);
U.S. Cl.
CPC ...
H02M 3/33515 (2013.01); H02M 5/293 (2013.01); H05B 33/0815 (2013.01); Y02B 20/346 (2013.01);
Abstract

A controller for a power converter includes an edge detection circuit and a drive circuit. The edge detection circuit includes a comparator, a count module, and an edge checking module. The comparator is coupled to output a compare signal in response to comparing an input sense signal and a count signal. The input sense signal is representative of an input voltage of the power converter. The count module is coupled to adjust the count signal to track the input sense signal in response to receiving the compare signal. The edge checking module is coupled to output at least one edge signal in response to the compare signal. The drive circuit is coupled to output a drive signal in response to the at least one edge signal. The drive signal is for controlling a switch coupled to regulate an output of the power converter.


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