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:
Oct. 15, 2002
Filed:
Apr. 09, 2002
Koichi Morita, Fujimi, JP;
Sanken Electric Co., Ltd., , JP;
Abstract
A switching power supply capable of translating a.c. voltage into d.c. voltage includes a rectifier circuit connected to a pair of a.c. input terminals, a transformer having a primary winding, a rectifying and smoothing circuit connected to the transformer, switch connected between the transformer and a ground-potential output conductor of the rectifier circuit, an inductor connected between the first output conductor and ground-potential output conductor of the rectifier circuit at least via the switch, and a smoothing capacitor connected between the first output conductor and the ground-potential output conductor of the rectifier circuit via the transformer and the inductor. An ancillary charging circuit is provided which includes an ancillary winding electromagnetically coupled to the primary winding of the transformer.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile