Reduction of reverse recovery losses in auxiliary switch topologies by saturable reactors

Svetlana Hachamov, Sam Ben-Yaakov

Research output: Contribution to conferencePaperpeer-review

Abstract

Saturable cores were shown to be useful in easing the residual reverse recovery problem in auxiliary-switch ZVS topologies. The objective of this study was to investigate the effect of the saturable reactor on the reverse recovery process. Namely, to gain a better understanding of the intricate interaction between the elements so that a systematic design procedure can be formulated. This was done by PSPICE (MicroSim Inc.) simulation of an equivalent circuit that represents the problem on hand including a qualitative account of all major losses. The simulation results that were verified by experimental results, point out to the merit of connecting a bypass resistor in parallel with the saturable reactor. This helps to reduce the core losses of the reactor easing thereby the problem of temperature rise at high switching frequencies. The simulation methodology developed in the paper could be helpful in studying other reverse recovery problems.

Original languageEnglish
Pages4.5.4/1-5
StatePublished - 1 Jan 1995
EventProceedings of the 18th Convention of Electrical and Electronics Engineers in Israel - Tel Aviv, Isr
Duration: 7 Mar 19958 Mar 1995

Conference

ConferenceProceedings of the 18th Convention of Electrical and Electronics Engineers in Israel
CityTel Aviv, Isr
Period7/03/958/03/95

ASJC Scopus subject areas

  • Engineering (all)

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