Restructured High-Gain DC-DC Converter with Improved Reliability and Reduced Failure-Rate of Filter-Capacitor

This paper introduces a restructured DC-DC converter with reduced losses and failure-rate of filter-capacitor, which extends its life-time. The restructured converter also keeps the advantages of non-pulsating source current, common-ground point, high boosting ability and reduced device count. The steady-state analysis of restructured converter has been presented. Also, it (restructured converter) has been compared with original converter from viewpoint of reliability and filter-capacitor failure-rate. The effect of different parameters' value (like duty-cycle, output power, input voltage and filter capacitance) on failure-rate of filter-capacitor has been studied and presented. The comparison results show that the restructured converter is more reliable than original one. Also, the simulation results have been included to make sure of converter's correct operation.