Simulation of ZVZCS Based DC-DC Boost Converter

This paper presents the design and simulation of the zero voltage zero current switched non isolated dcdc boost converter. Many applications powered by batteries need high performance, high step up dc-dc converters. When the converter switches are turned on and off at high frequency to meet dynamic and steady state requirements, the losses add on in the converter. When current through the switches is zero switching off and switching on at zero voltage is one possible solution to minimize the switching losses which can be achieved with the help of resonating circuit. With an optimum design of resonating elements, high step up voltage can be obtained. One such approach where an input DC voltage of 70V is boosted to 560V with Zero Voltage and Zero Current Switching (ZVZCS), with reduced switching frequency ZVZCS boost converter is compared with conventional boost converter is presented in this paper. The proposed scheme is verified with the help of simulation results using MATHLAB.