Very High Frequency Interleaved Self-Oscillating Resonant SEPIC Converter

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This paper describes analysis and design procedure of an interleaved, self-oscillating resonant SEPIC converter, suitable for operation at very high frequencies (VHF) ranging from 30 MHz to 300 MHz. The presented circuit consists of two resonant SEPIC DC-DC converters, and a capacitive interconnection
network between the switches which provides self-oscillating and interleaved operation. A design approach to ensure zero voltage switching (ZVS) condition of the MOSFET devices is provided. To verify the proposed method, an 11 W, 50 MHz prototype was built using low-cost VDMOS devices and experimental results are presented. Peak achieved efficiency was 87%.
Original languageEnglish
Title of host publicationProceedings of EPE '13-ECCE Europe
Number of pages9
Publication date2013
ISBN (Print)978-90-75815-17-7
Publication statusPublished - 2013
EventEPE'13 ECCE Europe: 15th Conference on Power Electronics and Applications - Lille, France
Duration: 3 Sep 20135 Sep 2013


ConferenceEPE'13 ECCE Europe


  • Very high frequency power converter
  • Resonant converter
  • Zero voltage switching
  • Interleaved converters
  • Self-oscillating


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