A lossless snubber for DC/DC converters and its application in PFC

Author

Wu, Xuezhi ; Jin, Xinmin ; Huang, Lipei ; Feng, Guang

Author_Institution

Dept. of Electr. Eng., Tsinghua Univ., Beijing, China

Volume

3

fYear

2000

fDate

2000

Firstpage

1144

Abstract

A passive lossless snubber is proposed in this paper to reduce switching losses and EMI noise by restricting di/dt and dv/dt of the switching device. As an example, a boost convertor with the lossless snubber is presented to illustrate the operation principle and theoretical analysis in details. Six basic DC/DC convertor topologies equipped with the proposed snubber are also shown in this paper. A 5 kW power factor correction (PFC) prototype with the snubber is designed to show the advantage of the snubber. Both simulation and experimental results are given

Keywords

DC-DC power convertors; electromagnetic interference; interference suppression; passive networks; power factor correction; snubbers; switching circuits; 5 kW; DC/DC converters; EMI noise reduction; boost convertor; operation principle; passive lossless snubber; power factor correction; switching losses reduction; Capacitors; Circuits; DC-DC power converters; Inductors; Power factor correction; Pulse width modulation; Pulse width modulation converters; Snubbers; Switching loss; Voltage;

fLanguage

English

Publisher

ieee

Conference_Titel

Power Electronics and Motion Control Conference, 2000. Proceedings. IPEMC 2000. The Third International

Conference_Location

Beijing

Print_ISBN

7-80003-464-X

Type

conf

DOI

10.1109/IPEMC.2000.882993

Filename

882993