A VHF Interleaved Self-Oscillating Resonant SEPIC Converter with Phase-Shift Burst-Mode Control

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Abstract

This paper presents design and implementation of the phase-shift burst-mode control method for interleaved selfoscillating resonant SEPIC converters for LED lighting applications. The proposed control method utilizes delays in the turn-on and turn-off of the power stage and control circuitry in order to reduce requirements for the comparator in the regulation circuit. The control method is experimentally evaluated on a 49 MHz dc-dc converter prototype, and the results are presented. The designed converter demonstrates peak efficiency of 81%,
maintains efficiency above 75% from 20% load to full load, and is implemented using low-cost switches and integrated circuits.
Original languageEnglish
Title of host publicationProceedings of Twenty-Ninth Annual IEEE Applied Power Electronics Conference and Exposition
PublisherIEEE
Publication date2014
Pages1402-1408
ISBN (Print)978-1-4799-2325-0
DOIs
Publication statusPublished - 2014
EventTwenty-Ninth Annual IEEE Applied Power Electronics Conference and Exposition - Fort Worth Convention Center , Fort Worth, TX , United States
Duration: 16 Mar 201420 Mar 2014
http://www.apec-conf.org/

Conference

ConferenceTwenty-Ninth Annual IEEE Applied Power Electronics Conference and Exposition
LocationFort Worth Convention Center
CountryUnited States
CityFort Worth, TX
Period16/03/201420/03/2014
Internet address

Cite this

Kovacevic, M., Knott, A., & Andersen, M. A. E. (2014). A VHF Interleaved Self-Oscillating Resonant SEPIC Converter with Phase-Shift Burst-Mode Control. In Proceedings of Twenty-Ninth Annual IEEE Applied Power Electronics Conference and Exposition (pp. 1402-1408). IEEE. https://doi.org/10.1109/APEC.2014.6803490