Optimising snubbers for high-current emitter-switched transistors

Francis Robinson, Barry Williams

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Abstract

The authors analyse a soft voltage-clamp to find a simple design procedure for optimising series-snubber and clamp reset-time circuits for a given voltage rise above the supply-rail. This analysis is applicable to other switches requiring voltage clamping rather than load-line tailoring, including MOSFETs. Their advantages of: reduced power dissipation over shunt-snubbers; current-dependent power dissipation, independent of supply-voltage; and absence of cross-current peaks in phase-legs are likely to promote continued usage
Original languageEnglish
Title of host publicationThird International Conference on Power Electronics and Variable-Speed Drives
Place of PublicationLondon, UK
PublisherIET
Pages177-180
Number of pages4
ISBN (Print) 0-85296-364-5
Publication statusPublished - 13 Jul 1988
EventThird International Conference on Power Electronics and Variable-Speed Drives - London, UK United Kingdom
Duration: 13 Sep 198815 Sep 1988

Conference

ConferenceThird International Conference on Power Electronics and Variable-Speed Drives
CountryUK United Kingdom
CityLondon
Period13/09/8815/09/88

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Robinson, F., & Williams, B. (1988). Optimising snubbers for high-current emitter-switched transistors. In Third International Conference on Power Electronics and Variable-Speed Drives (pp. 177-180). London, UK: IET.