Development of IGBT Stacks for Cost Reduction

원가절감형 IGBT스택 개발

  • Hong S.C (Dept. of Electrical Eng., Dankook University) ;
  • Kang K.W. (Dept. of Electrical Eng., Dankook University) ;
  • Jung W.C. (Dept. of Electrical Eng., Dankook University) ;
  • Hwang Y.H. (Vega Power Co.)
  • Published : 2003.07.01

Abstract

This paper deals with the development of IGBT stacks for cost reduction. One stack is consist of 4 IGBTS in parallel. In the high- and mid-power converters, IGBT stacks are more suitable than single IGBTS in the aspects of total cost of semiconductor devices, time for purchasing, maintenance, radiation of heat, size of surge absorber and harmonic filter, frequency characteristics, and etc.. Problems accompanied by parallel construction are studied and solved. Economical efficiency is discussed and field tests with 100kVA UPS are tarried out to verify the validity of the developed IGBT stacks.

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