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:
Jan. 17, 2006
Filed:
May. 23, 2003
Milan M. Jovanovic, Cary, NC (US);
Yungtaek Jang, Apex, NC (US);
Yu-ming Chang, Taoyuan, TW;
Kung-hui Fang, Taoyuan, TW;
Milan M. Jovanovic, Cary, NC (US);
Yungtaek Jang, Apex, NC (US);
Yu-ming Chang, Taoyuan, TW;
Kung-Hui Fang, Taoyuan, TW;
Delta Electronics, Inc., Taipei, TW;
Abstract
A soft-switched boost converter includes an active snubber to provide soft switching of all semiconductor components. Specifically, the current ('turn-off current') in the rectifier is switched off at a controlled rate, the main switch is closed under zero-voltage switching (ZVS) condition, and the auxiliary switch in the active snubber is opened under zero-current switching (ZCS) condition. As a result, switching losses are reduced with beneficial effects on conversion efficiency and EMC performance.