Low Power Very High Frequency Switch-Mode Power Supply with 50 V Input and 5 V Output

Mickey Pierre Madsen, Arnold Knott, Michael A. E. Andersen

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Abstract

This paper presents the design of a resonant converter with a switching frequency in the very high frequencyrange (30-300 MHz), a large step down ratio (10 times) and low output power (1 W). Several different invertersand rectifiers are analyzed and compared. The class E inverter and rectifier are selected based on complexity andefficiency estimates. Three different power stages are implemented; one with a large input inductor, one with a switch with small capacitances and one with a switch with low on resistance. The power stages are designed with the same specifications and efficiencies from 60:7􀀀82:9% are achieved
Original languageEnglish
JournalIEEE Transactions on Power Electronics
Volume29
Issue number12
Pages (from-to)6569-6580
ISSN0885-8993
DOIs
Publication statusPublished - 2014

Keywords

  • Resonant power conversion
  • VHF circuits
  • DC-DC power conversion
  • Switched mode power supplies
  • Rectifiers
  • Inverters

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