A novel self-oscillating synchronously-rectified DC-DC converter

Alexander Abramovitz, Sam Ben-Yaakov

Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review

5 Scopus citations


A self-oscillating synchronously rectified DC-DC converter (SOSYRC) is proposed and examined analytically and experimentally. The converter is composed of an autonomous high-frequency push-pull oscillator, a synchronous pulsewidth modulated (PWM) controller/driver, a synchronous rectifier, and an output filter. The synchronous controller is built around a conventional PWM controller. Its function is to maintain zero voltage switching (ZVS) and to pass integer number of cycles of the main frequency to prevent saturation of the push-pull transformer due to unbalanced operation. The main features of the SOSYRC are: operation under ZVS conditions, sinusoidal voltage waveforms, and the ability to independently control multiple outputs. Another important feature is the fact that only a fraction of the resonant current passes through the switches. Simulation and experimental results were found to be in good agreement with the model developed for the proposed SOSYRC.

Original languageEnglish
Title of host publicationPESC Record - IEEE Power Electronics Specialists Conference
PublisherInstitute of Electrical and Electronics Engineers
Number of pages8
ISBN (Print)0780300904
StatePublished - 1 Oct 1991
Event22nd Annual IEEE Power Electronics Specialists Conference - PESC '91 - Boston, MA, USA
Duration: 24 Jun 199127 Jun 1991

Publication series

NamePESC Record - IEEE Power Electronics Specialists Conference
ISSN (Print)0275-9306


Conference22nd Annual IEEE Power Electronics Specialists Conference - PESC '91
CityBoston, MA, USA

ASJC Scopus subject areas

  • Modeling and Simulation
  • Condensed Matter Physics
  • Energy Engineering and Power Technology
  • Electrical and Electronic Engineering


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