A novel DC-DC Converter for 3[kW] Fuel Cell System Residential Application

3[kW]급 주택용 연료전지시스템에 사용되는 새로운 DC-DC 컨버터

This paper presents a novel DC-DC Converter for 3 [kW] Fuel Cell System Residential Application. Phase shifted control is employed to regulate the output voltage and achieve soft switching. The transformer leakage inductance is utilized effectively to achieve zero voltage turn on for the power semiconductor switches. The current doubler rectifier has only one diode drop. The transformer secondary winding current rating is one half the load current. The overall effciency of the converter is improved.