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석진규(J.K. Seok),강성관(S.K. Kang),송웅협(W.H. Song),조원우(W.W. Jo),노의철(E.C. Nho),김인동(I.D. Kim),전태원(T.W. Chun),김홍근(H.G. Kim) 전력전자학회 2009 전력전자학술대회 논문집 Vol.2009 No.1
This paper deals with a welding time for a spot welding system. Conventional welding machine adopts several tens of switching devices connected in parallel to obtain a short welding time. This paper analyzed a welding system consisting with 4 IGBT switchs for a full-bridge inverter and conventional 60 [Hz] transformer. The simulation and experimental results show that the welding time can be minimized to 5 [ms] with the proposed scheme.