Non-isolated high gain DC-DC converter by quadratic boost converter and voltage multiplier cell

Abstract

A novel non-isolated DC-DC converter is proposed by combining quadratic boost converter with voltage multiplier cell. The proposed converter has low semiconductor device voltage stress and switch utilization factor is high. The superiority of the converter is voltage stress of the semiconductor devices depends on voltage multiplier (VM) cell. By increasing the VM cell the stresses across the devices reduce drastically. The proposed converter has same number of components compared to certain voltage lift converters taken for comparison. A detailed comparative study is made on the proposed converter with few voltage lift converters in the literature, conventional boost with VM cell and quadratic boost converter. A 40 W prototype is constructed with 12 V input voltage and 96 V output voltage to verify the performance and validate the theoretical analysis of the proposed converter. Keywords: High gain, Quadratic, Multiplier, Voltage stress, Efficiency