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.
Patent No.:
Date of Patent:
Sep. 20, 2016
Filed:
Jul. 02, 2015
Power Integrations, Inc., San Jose, CA (US);
Alex B. Djenguerian, Saratoga, CA (US);
Peter Vaughan, Los Gatos, CA (US);
Leif Lund, San Jose, CA (US);
Power Integrations, Inc., San Jose, CA (US);
Abstract
A controller for a power converter that may sense whether the power converter is in a light load condition. If the power converter is a light load condition, the switching frequency may be within the audible noise range. Once the controller senses the light load condition, the controller may modulate the switching frequency of the power switch such that the switching frequency is no longer within the audible noise range. The controller comprises of a current limit generator coupled to generate an initial current limit signal and receive a feedback signal. The controller may sense a light load condition of the power converter and output a light load signal. As a result of the light load signal, the controller may modulate the initial current limit in response to the light load signal indicating a light load condition.