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. 20, 2003
Filed:
Jul. 03, 2001
Chung-Tsai Huang, Hsinchu, TW;
Ambit Microsystems Corp., , TW;
Abstract
A DC to DC converter having a simplified logic circuit with both zero voltage switch function and synchronous rectification function, including a transformer having a primary coil and a second coil, a first half-bridge switch coupled to one end of the primary coil, a second half-bridge switch coupled to the other end of the primary coil, a first synchronous rectifier coupled to one end of the second coil, a second synchronous rectifier coupled to the other end of the second coil. The switching between the first half-bridge switch and the second half-bridge switch is made through the leakage inductance of the transformer and the open of the first synchronous rectifier and the second synchronous rectifier is made by the coil resistance of the transformer.