Lossless Inductor Snubber-Assisted ZCS-PFM High Frequency Series Resonant Inverter for Eddy Current-Heated Roller

  • Feng Y. L. (Department of Electrical and Electronic Engineering Yamaguchi University) ;
  • Ishitobi M. (Department of Electrical and Electronic Engineering Yamaguchi University) ;
  • Okuno A. (Department of Electrical and Electronic Engineering Yamaguchi University) ;
  • Nakaoka M. (Department of Electrical and Electronic Engineering Yamaguchi University) ;
  • Lee H. W. (Division of Electrical Electronics Engineering Kyungnam University)
  • Published : 2001.10.01

Abstract

This paper presents a novel prototype of ZCS-PFM high frequency series resonant inverter using IGBT power module for electromagnetic induction eddy current-heated roller in copy and printing machines. The operating principle and unique features of this voltage source half bridge inverter with two additional soft commutation inductor snubber are presented including the transformer modeling of induction heated rolling drum. This soft switching inverter can achieve stable zero current soft commutation under a discontinuous and continuous resonant load current for a widely specified power regulation processing. The experimental results and computer-aided analysis of this inverter are discussed from a practical point of view.

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