A Cascade High Gain DC-DC Converter Employing Coupled Inductor and Diode Capacitor

Abstract

In this paper, a novel topology of DC-DC converter with a high voltage gain is presented which is suitable for photovoltaic applications. In the proposed converter a coupled inductor with diode-capacitor cell for increasing the voltage gain is used. Moreover, the leakage energy is efficiently recycled to the output by the diode and capacitor. The proposed converter can achieve higher voltage gain with small duty cycle. The operational principles, steady state analysis and simulation and experimental verifications in continuous condition modes are presented in this paper.