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. 02, 2011
Filed:
Nov. 09, 2006
Shinichi Kojima, Osaka, JP;
Tohru Ueno, Hyogo, JP;
Shinichi Kojima, Osaka, JP;
Tohru Ueno, Hyogo, JP;
Ricoh Company, Ltd., Tokyo, JP;
Abstract
A synchronous-rectification-type switching regulator is disclosed that includes a first switching element; an inductor charged with a voltage input to an input terminal of the switching regulator by the switching of the first switching element; a second switching element for synchronous rectification performing switching so as to discharge the inductor; a control circuit part controlling the switching of the first switching element so that an output voltage from an output terminal of the switching regulator is a predetermined constant voltage, and to cause the second switching element to perform the switching inversely to the first switching element; and a reverse current prevention circuit part interrupting a current that flows into the second switching element by cutting off the connection of the second switching element so as to prevent generation of a reverse current that flows in the direction of the second switching element from the output terminal.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile