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:
Jan. 12, 2021

Filed:

Sep. 03, 2019
Applicant:

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

Inventors:

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

Giao Minh Pham, Milpitas, CA (US);

Lance M. Wong, Milpitas, CA (US);

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

Assignee:

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

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H02M 3/335 (2006.01); H02M 1/44 (2007.01);
U.S. Cl.
CPC ...
H02M 1/44 (2013.01); H02M 3/33507 (2013.01);
Abstract

A controller includes a current limit generator that generates a current limit threshold. A switch controller receives the current limit threshold, an enable signal, and a current sense signal representative of a current through a power switch. The switch controller generates a drive signal to control switching of the power switch to control the transfer of energy from an input of the power converter to an output of the power converter in response to the enable signal and the current sense signal. The switch controller outputs the drive signal to turn on the power switch in response to the enable signal and turns off the power switch when the current sense signal reaches the current limit threshold. A jitter generator generates a jitter signal for jittering a switching period of the drive signal. The current limit threshold is modulated by the jitter signal.


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