A Resonant DC-DC Transformer

Gregory Ivensky, Alexander Abramovitz, Michael Gulko, Sam Ben-Yaakov

Research output: Contribution to journalArticlepeer-review

17 Scopus citations


The characteristics of a push-pull parallel resonant converter (PPRC) when operated as a dc-dc transformer were investigated theoretically and experimentally. In the dc-dc transformer region, the voltage transfer ratio of the PPRC was found to be practically constant and independent of the input voltage and load. In this mode, all the switching elements operate in the zero voltage switching (ZVS) condition. Another important feature of the proposed dc-dc transformer is the ability to drive it by an arbitrary switching frequency, provided that it is lower than the self-osciliating frequency. This permits the synchronisation of the converter to a master clock. The analytical expressions for voltage and current stresses as well as other key parameters, derived in the paper, are applied to develop design guidelines for the dc-dc transformer. The proposed topology was tested experimentally on a 100 W unit which was run at the 200 KHz frequency region.

Original languageEnglish
Pages (from-to)926-934
Number of pages9
JournalIEEE Transactions on Aerospace and Electronic Systems
Issue number3
StatePublished - 1 Jan 1993

ASJC Scopus subject areas

  • Aerospace Engineering
  • Electrical and Electronic Engineering


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