Title :
Improved soft-switching ZVT converters with active snubber
Author :
Lin, Ray L. ; Zhao, Yiqing ; Lee, Fred C.
Author_Institution :
Bradley Dept. of Electr. Eng., Virginia Polytech. Inst. & State Univ., Blacksburg, VA, USA
Abstract :
A new family of improved soft-switching ZVT power converters with an active snubber is developed in order to improve the efficiency of conventional ZVT power converters using a feedback inductor. Besides the ZVT turn-on performance of the main switch, the improved ZVT soft-switching power converters have less turn-off switching loss of the main switch than do conventional ZVT converters using a feedback inductor. With this new technique, an improved single-phase CCM ZVT soft-switching PFC power converter prototype has been implemented to show higher efficiency improvement than the conventional ZVT converters using a feedback inductor
Keywords :
power convertors; snubbers; switching circuits; ZVS; active snubber; efficiency improvement; power converters; single-phase; soft-switching; turn-off switching loss; turn-on performance; zero voltage switching; Active inductors; Capacitors; Feedback; Snubbers; Stress; Switches; Switching circuits; Switching converters; Voltage; Zero current switching;
Conference_Titel :
Applied Power Electronics Conference and Exposition, 1998. APEC '98. Conference Proceedings 1998., Thirteenth Annual
Conference_Location :
Anaheim, CA
Print_ISBN :
0-7803-4340-9
DOI :
10.1109/APEC.1998.654029
