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철도차량 보조전원 Three-Level ZVZCS DC/DC 컨버터
노성찬(S.C.Rho),임응규(E.K. Lim),양성혁(S.H. Yang),김윤호(Y.H. Kim) 전력전자학회 2003 전력전자학술대회 논문집 Vol.2003 No.7(2)
Using a Assistance Power Sources of the Railroad Vehicles Three-Level ZVZCS DC/DC Converter is presented in this paper. The proposed three-Level DC/DC Converter is to achieved zero voltage and zero current switching for the two Main switches phase shift method is used a parastic capacitance by reverse recovery characteritics in a inner diode of the switching device. Also. using a diode second part of the Transformer by the simple auxiliary circuit for the achieved zero current switching of the Auxiliary switch. For the ZVZCS movement of the all switching devices is analyzed and verified under a 5kW, in the 100kHz switching frequency<br/>