Modeling of Closed Loop ZVS Double Boost DC-DC Converter

Abstract

This proposal presents the analysis of closed loop of ZVS double boost DC-DC converter with increased efficiency and gain for aerospace applications. Boosting the voltage level at the output with low switching losses has been achieved by properly designing the proposed  DC-DC converters. However, the output voltage increases in arithmetic progression. Double Boost (DB) technique with ZVS is more powerful than Voltage Boost (VB) technique since its voltage transfer gain increases in geometric progression. To improve the power rating capacity, the proposed control method uses dspic microcontroller to generate the PWM signal and regulate the output voltage. The soft switched double boost DC-DC converter offer benefits particularly higher output voltage with minimal changes than the other boost converters. To verify the concept, simulation and experimentation are carried out. The performance of this converter is experimented for different duty cycles at constant load. The results reveal that the ZVS is achieved in all aspects by reducing the switching losses and increasing the efficiency of the converter to 92%.