Title :
Passive lossless turn-on snubber energy recovery in high frequency power converters
Author :
He, X. ; Williams, B.W. ; Finney, S.J. ; Green, T.C.
Author_Institution :
Dept. of Comput. & Electr. Eng., Heriot-Watt Univ., Edinburgh, UK
Abstract :
This paper describes three passive lossless circuits for recovering turn-on snubber energy, which are applicable to high frequency power converters. The inductive trapped energy, which is load current dependent, is recovered into the DC supply, load or both, at switch turn-off. The operational processes of the circuits, which may be operated as a hard-clamped or soft-clamped snubber, are analyzed and compared. Simulations, along with experimental results, are given
Keywords :
inductive energy storage; overvoltage protection; passive networks; power convertors; switching circuits; DC supply; hard-clamped; high frequency power converters; load current; passive lossless circuits; simulation; soft-clamped; switch turn-off; turn-on snubber energy recovery; Circuit simulation; Clamps; Diodes; Frequency conversion; Inductance; Inductors; Snubbers; Switches; Switching circuits; Voltage;
Conference_Titel :
Industrial Electronics, Control, and Instrumentation, 1993. Proceedings of the IECON '93., International Conference on
Conference_Location :
Maui, HI
Print_ISBN :
0-7803-0891-3
DOI :
10.1109/IECON.1993.338980
