A Quadratic DC–DC boost converter with capacitor voltage rating reduction

Abstract

This paper presents a quadratic DC-DC boost converter topology featuring high voltage gain, common-ground (CG) characteristic, and simplified control with a single active power semiconductor switch. Steady-state analysis and small signal analysis are conducted to model and determine the transfer function of the proposed DC-DC converter. Based on transfer function, the parameters of controllers are determined. The configuration is controlled by two proportional-integral (PI) controllers. The proposed converter are controlled by two closed-loop controllers with feedback references of output voltage and input inductor current. Simulation results are carried out using PSIM software and a 200W experimental prototype with a resistive load to verify the accuracy of the proposed control method.