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Analysis of self-oscillating DC-DC resonant power converters using a hysteretic relay

By D. R. Williams, Chris Bingham, D. A. Stone, M. P. Foster and A. Gilbert

Abstract

The paper presents a technique for exciting resonant DC-DC converters in a self-oscillating manner. The analysis necessary to predict the behaviour of such converters is also given. The oscillation is based on the behaviour of a hysteretic relay with a negative hysteresis transition. Self-oscillating converters benefit from higher efficiency/higher power density than their non-self-oscillating counterparts as they can be operated closer to the tank resonant frequency. The self-oscillating mechanism presented here is also simple and cost effective to implement. A prototype converter is presented in order to verify the theoretical claims

Topics: H600 Electronic and Electrical Engineering
Publisher: Institute of Electronic and Electrical Engineering
Year: 2007
DOI identifier: 10.1109/EPE.2007.4417366
OAI identifier: oai:eprints.lincoln.ac.uk:2463

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Citations

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