Design optimization of a new active resonant snubber for high power IGBT converters

Combrink F.W. ; du T. Mouton H. ; Enslin J.H.R. (2000)

Conference Paper

In this paper a design optimization procedure for a new active resonant snubber topology, specifically suited for high power IGBT converters, is introduced. After the basic operation principles and certain implementation consideration are discussed, the optimization strategy, based on an analytical loss evaluation, is described. Experimental results obtained on an IGBT phase-arm fitted with an optimally designed snubber are presented.

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