EV Charger Power quality Improvement using Synchronous rectified Bridgeless CUK Converter

A two stage Bridgeless CUK Converter is developed and simulated in this paper work. The converter is cost effective and simple with very less elements. The front end Power factor Correction (PFC) unit rectifies the voltage along with the unity power factor which improves the power quality and efficiency of the power given to the Electric vehicle on-board charging unit. The rear end Flyback with synchronous rectification (SR) controls the vehicle battery charging in Constant Current (CC) and Constant Voltage (CV) based on the battery State Of Charge (SoC). The Electric vehicle (EV) charger draws a sinusoidal current waveform keeping Total Harmonic Distortion (THD) is under the guidelines of international regulations standard IEC 61000-3-2. The proposed topology consists of very few components excluding the unwanted capacitor banks as well as conventional diode bridges will be resulting in fewer losses.