Browse > Article

A Generalization of High Frequency Converter with Lossless Snubber Cell  

Joung Gyu-Bum (우석대 정보통신공학과)
Publication Information
The Transactions of the Korean Institute of Power Electronics / v.9, no.5, 2004 , pp. 478-484 More about this Journal
Abstract
In this paper, two lossless snubber cells are proposed to generalize high frequency converter with losslless snubber. The selecting of snubber cells, which generalize high frequency converters, are depended on converter topologies. The cells have a saturable inductor, LC resonant tank and two diodes. In the cells, the saturable inductors extremely reduce resonant energy in the LC resonant tank. By minimizing resonant energy, the converter, which applies snubber cells, can operate at high frequency. These cells are applied for Buck, Boost, Buck-Boost, Cuk, ZETA, and SEPIC to generalize converter which have lossless snubber. The boost type converter has been implemented, with 400 kHz switching frequency for 125 W load to verify the converter characteristics.
Keywords
High frequency; Lossless snubber; Lossless snubber cell; High efficient; High power density;
Citations & Related Records
연도 인용수 순위
  • Reference
1 G. Hua, C. Leu, and F. C. Lee, 'Novel zero-voltage-transition PWM converters,' IEEE Power Electronics Specialists Conf. Rec., 1922, pp. 55-61
2 김만고, '부스트 컨버터용 새로운 에너지 재생 스너버' 전력전자학화지 제2권, 제2호 1997년 6월, pp. 57-63
3 N. H. Kutkut, 'A New Dual-BridgeSoft Switching DC-DC Power Converter for High Power Application', IEEE Power Electronics Specialist Conference Rec., pp 474-479. 1999
4 J. K. Chung, and G. H. Cho, 'A New Soft Switched PWM Quisi-Resonant Converter with a Folding Snubber Network,' IEEE Trans. on IE., Vol. No. 2, pp. 456-461, 2002
5 D. M. Divan, 'Diode as pseudo active elements is high frequency dc/dc converters,' IEEE Trans. Power Electron., Vol. PE-4, No. 1 pp. 8-14, Jan. 1989
6 김은수, 최해영, 조기연, 김윤호, '고주파 소프트 스위칭 Forward DC/DC 컨버터', 전력전자학회지 제4권, 제1호 1999년 2윌, pp. 19-25   과학기술학회마을
7 H. K. Ji, and H. J. Kim, 'Active Clamp Forward Converter with MOSFET Synchronous Rectification,' IEEE Power Electronics Specialists Conf. Rec., 1994, pp. 895-901
8 이성룡, 전칠환, 권순선, 'ZVT 스위칭 기법을 적용한 PFC 인버터' 전력전자학회지 제5권, 제6호 2000년 12월, pp. 560-567
9 M. J. Ryan, W. E. Brumsickle, D. M. Divan, and R. D. Lorenz, 'A New ZVS LCR - Resonant Push Pull Converter Topology', IEEE Trans. IA, vol. 34, no. 5, pp. 1164-1174, 1998
10 D. Y. Huh, H. S. Kim, and G. H. Cho, 'New group of ZVS PWM converters operable on constant frequency and its application to power factor correction circuit,' IEEE Power Electronics Specialists Conf. Rec., 1922, pp. 1440-1446