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:
Dec. 02, 2003
Filed:
Feb. 26, 2002
Alain Chapuis, Riedikon, CH;
Peter Gammenthaler, Hittnau, CH;
Power-One AG, Uster, CH;
Abstract
The invention concerns a voltage converter of a flux converter type with a self-regulating synchronous rectifier in the secondary circuit related to a transformer ( ), with a capacitor device (C ; C , C ) being provided, for driving an active switching element (V , V ) of the synchronous rectifier, which is charged by means of an auxiliary winding (W , W ) of the transformer in the secondary circuit, and its charge is applied to a control terminal of the active switching element by means of a semiconductor element (D , D ; ), with the capacitor device being implemented in such a way that the charge allows synchronous switching operation of the active switching element.