Improved Power Quality of Single Phase On-Board Charger with Wide Voltage Conversion Range

For electric vehicle applications, there is a persistent need for on-board chargers that are dependable, effective, compact, and lightweight. In this paper, a non-isolated two-switch buck boost (TSBB) topology is presented for a single-phase on-board charger, which can offer significantly improved performance over single-switch buck-boost converters as SEPIC, CUK, or fly back topologies or other two-switch buck-boost converters. The advantage of this on-board charger is that it can perform high input power quality over a wide output voltage conversion range. This paper presents an analysis of the various modes of the converter and small signal analysis of the converter to design the controller. To validate the effectiveness of the converter simulations results are presented with the help of MATLAB-Simulink.