Design of Mono Stage Luo Converter for Electric Vehicles Charging System

The electric vehicle charger with modified LUO converter is proposed in this paper that has High Frequency Transformer (HFT) to isolate the input and load side. The primary of the HFT contains two switches and two diodes that reduces the voltage stress in switches. The proposed topology operates in Discontinuous Conduction Mode (DCM), which reduces the components and control complexities of the converter. The charger is operated in Constant Voltage (CV) - Constant Current (CC) modes, which increases the battery life at long term. The proposed topology delivers better performance that is evaluated by performing the simulation in MATLAB/Simulink. The resultant output voltage from modified LUO converter charges the battery of 48V.