Title :
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
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;
Conference_Titel :
Power Electronics and Motion Control Conference, 2000. Proceedings. IPEMC 2000. The Third International
Conference_Location :
Beijing
Print_ISBN :
7-80003-464-X
DOI :
10.1109/IPEMC.2000.882993
