Efficiency evaluation of single-phase solutions for AC-DC PFC boost converters for plug-in-hybrid electric vehicle battery chargers

In this paper, the bridgeless interleaved boost topology is proposed for plug-in hybrid electric vehicle and electric vehicle battery chargers to achieve high efficiency, which is critical to minimize the charger size, charging time and the amount and cost of electricity drawn from the utility. An analytical model for this topology is developed, enabling the calculation of power losses and efficiency. Experimental and simulation results of prototype units converting the universal AC input voltage to 400 V DC at 3.4 kW are given to verify the proof of concept, and analytical work reported in this paper.