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. 06, 2011
Filed:
Oct. 13, 2010
Balu Balakrishnan, Saratoga, CA (US);
Alex B. Djenguerian, Saratoga, CA (US);
Kent Wong, Fremont, CA (US);
David Michael Hugh Matthews, Windsor, GB;
Balu Balakrishnan, Saratoga, CA (US);
Alex B. Djenguerian, Saratoga, CA (US);
Kent Wong, Fremont, CA (US);
David Michael Hugh Matthews, Windsor, GB;
Power Integrations, Inc., San Jose, CA (US);
Abstract
A power supply regulator including a variable current limit threshold that increases during an on time of a switch. In one aspect, a power supply regulator includes a comparator coupled to receive a signal representative of a current through a switch during an on time of the switch. The comparator is further coupled to receive a variable current limit threshold that increases during the on time of the switch. The power supply regulator also includes a feedback circuit coupled to receive a feedback signal representative of an output of a power supply. A control circuit is also included and is coupled to the switch, to an output of the comparator, and to an output of the feedback circuit. The control circuit is coupled to control a switching of the switch in response the output of the comparator and the output of the feedback circuit to regulate the output of the power supply.