Design and Analysis of a DC -DC Buck Boost Converter to Achieve High Efficiency and Low Voltage Gain by using Buck Boost Topology into Buck Topology

Abstract

This paper proposed a DC-DC buck boost converter which mainly presents the downbeat lower output voltage than the input voltage. It consists of same elements similar to a conventional DC-DC buck converter such as MOSFET switch, paired inductors and switched capacitor. A PSIM simulation has been conducted to compare and contrast the efficiency of the proposed DC-DC buck boost converter and conventional DC-DC buck converter. The result shows the efficiency of the proposed DC-DC buck boost converter is higher than the conventional DC-DC buck converter in terms of both switching frequency and load variation.