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:
Dec. 04, 2012
Filed:
Apr. 05, 2010
Applicants:
Sureshkumar Ramalingam, Singapore, SG;
Hong Liang Zhang, Singapore, SG;
Inventors:
Sureshkumar Ramalingam, Singapore, SG;
Hong Liang Zhang, Singapore, SG;
Assignee:
Marvell International Ltd., Hamilton, BM;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G05F 1/70 (2006.01);
U.S. Cl.
CPC ...
Abstract
In one embodiment, an apparatus for performing power factor correction is provided. A power factor corrector includes an input configured to sense a current from an input circuit. A reference generator generates a current limit based on an input voltage. The current limit reference is dynamically changed based on the input voltage. A control signal generator controls the current in the input circuit based on a comparison of the current and the generated current limit.