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:
Aug. 09, 2011
Filed:
Sep. 26, 2007
Applicants:
Mikio Motomori, Osaka, JP;
Takuya Ishii, Osaka, JP;
Inventors:
Mikio Motomori, Osaka, JP;
Takuya Ishii, Osaka, JP;
Assignee:
Panasonic Corporation, Osaka, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G05F 1/10 (2006.01);
U.S. Cl.
CPC ...
Abstract
To securely detect the short-circuited state of a rectifier without detecting current and to protect a switching device in a DC-DC converter, in a state in which the potential at the connection point of the rectifier and the switching device is detected and a drive signal turns ON the switching device, the protection circuit of the DC-DC converter is configured to securely turn OFF the switching device when the potential at the connection point is a predetermined potential or more.