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:
Jan. 21, 2008
Filed:
Jun. 17, 2004
Applicants:
Thomas J. Ribarich, Laguna Beach, CA (US);
Robert Marenche, Torrance, CA (US);
Dana S. Wilhelm, Temple City, CA (US);
Inventors:
Thomas J. Ribarich, Laguna Beach, CA (US);
Robert Marenche, Torrance, CA (US);
Dana S. Wilhelm, Temple City, CA (US);
Assignee:
International Rectifier Corporation, El Segundo, CA (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H02M 7/04 (2005.12); H02M 1/12 (2005.12); G05F 1/652 (2005.12);
U.S. Cl.
CPC ...
Abstract
A power factor control circuit for an AC to DC power converter includes an inductor receiving AC rectified power. The charging time of the inductor is controlled by a switching circuit based on a comparison between a DC bus voltage and a fixed reference voltage. The circuit operates without an AC rectified line sensing network, and without a current-sensing resistor connected to the source of the MOSFET switch.