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홍순찬(S.C.Hong),강경우(K.W.Kang),정우창(W.C.Jung),황용하(Y.H.Hwang) 전력전자학회 2003 전력전자학술대회 논문집 Vol.2003 No.7(1)
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 rooky A UPS are carried out to verify the validity of the developed IGBT stacks.