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. 03, 2021

Filed:

Oct. 09, 2018
Applicant:

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

Inventors:

Balu Balakrishnan, Saratoga, CA (US);

David Michael Hugh Matthews, Los Gatos, CA (US);

Vikram Balakrishnan, Mountain View, CA (US);

Roland Sylvere Saint-Pierre, San Jose, CA (US);

Zhao-Jun Wang, San Jose, CA (US);

Giao Minh Pham, Milpitas, CA (US);

Qing McIntosh, San Jose, CA (US);

Assignee:

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

Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H02M 3/335 (2006.01); H02M 1/00 (2006.01);
U.S. Cl.
CPC ...
H02M 3/33507 (2013.01); H02M 3/33592 (2013.01); H02M 2001/0054 (2013.01); Y02B 70/10 (2013.01);
Abstract

A method of providing an input switching request signal to an input side switch includes determining a switching request window indicative of relaxation ringing during a first switching cycle. It is determined that the input side switch is operating in a discontinuous conduction mode (DCM) mode of operation during a second switching cycle. It is determined that the switching request window is open during the second switching cycle. The input switching request signal is enabled in response to determining the switching request window is open.


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