Electric vehicles (EVs) employ integrated onboard battery chargers (IOBCs) to enhance the charger’s power rating without being dedicated onboard chargers (OBCs). However, the existing IOBCs utilize additional circuitry and conversion stages to attain a wide voltage range. This paper proposes designing and controlling a bridgeless boost-buck configured IOBC with a wide output voltage range for EV applications. The performance of the proposed IOBC is assessed through MATLAB simulation studies on a 6.6 kW charger and experimental studies on a 1.3 kW laboratory prototype. The simulation and test results show that the proposed IOBC preserves a wide range of voltage at the output terminals and extracts a sinusoidal current with a unity power factor (UPF).
