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:
Mar. 29, 2011
Filed:
Jun. 27, 2008
Applicant:
Yuri Komori, Kawasaki, JP;
Inventor:
Yuri Komori, Kawasaki, JP;
Assignee:
Renesas Electronics Corporation, Kanagawa, JP;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G05F 1/40 (2006.01);
U.S. Cl.
CPC ...
Abstract
A switching regulator includes an inverter circuit and a size adjustment circuit. The inverter circuit converts an input voltage into an output voltage by a switching operation of a switch circuit. The size adjustment circuit controls an ON resistance of the switch circuit, depending on a power efficiency that is calculated from an input power dependent on the input voltage and an output power dependent on the output voltage.