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:
May. 08, 2012
Filed:
Mar. 19, 2008
Satoshi Sugahara, Matsumoto, JP;
Kouhei Yamada, Matsumoto, JP;
Satoshi Sugahara, Matsumoto, JP;
Kouhei Yamada, Matsumoto, JP;
Fuji Electric Co., Ltd., Kawasaki-shi, JP;
Abstract
A switching power supply system has a control circuit that controls an output voltage by causing a switching device to turn ON and OFF. The control circuit includes a control pulse supplying unit that supplies a pulsed signal that keeps the switching device turned-ON and -OFF. A protection circuit shuts down the switching power supply system upon occurrence of an abnormality. A delay circuit produces a delay signal that delays by a specified time duration the termination of a state of the pulsed signal in which the pulsed signal keeps the switching device turned-ON. The protection circuit is responsive to the pulsed signal or the delay signal to switch between an operation state and a stand-by state.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile