Integrated magnetics scheme for ZVS hybrid converter with improved performance

X. Gao, Raja Ayyanar

Research output: Chapter in Book/Report/Conference proceedingConference contribution

6 Scopus citations

Abstract

This paper proposes a new integrated magnetics scheme for the ZVS hybrid DC-DC converter. The basic hybrid converter achieves significant reduction in filter requirement, while simultaneously achieving ZVS under all operating conditions. This paper attempts to remove one of the main drawbacks of the hybrid converter, namely the requirement of two power transformers, by combining them into a single magnetic structure with reduced volume. The proposed scheme also results in reduction of cores losses under a wide operating range. In addition, the integrated magnetics scheme improves the ZVS characteristics of the right-most leg switches at light loads, thus eliminating the extra LC circuit needed in the basic hybrid converter. The principle of operation of the proposed scheme is analyzed using the gyrator-capacitor model. Savings in core size and core losses compared to the basic hybrid converter are discussed. Experimental results from a 100V/5A proof-of-concept prototype validate the analysis, and demonstrate the advantages of the proposed scheme.

Original languageEnglish (US)
Title of host publication2004 IEEE 35th Annual Power Electronics Specialists Conference, PESC04
Pages3681-3687
Number of pages7
DOIs
StatePublished - Nov 29 2004
Event2004 IEEE 35th Annual Power Electronics Specialists Conference, PESC04 - Aachen, Germany
Duration: Jun 20 2004Jun 25 2004

Publication series

NamePESC Record - IEEE Annual Power Electronics Specialists Conference
Volume5
ISSN (Print)0275-9306

Other

Other2004 IEEE 35th Annual Power Electronics Specialists Conference, PESC04
CountryGermany
CityAachen
Period6/20/046/25/04

ASJC Scopus subject areas

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

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