ABSTRACT
High-frequency power converter topology plays an important role in the battery charging of electric vehicles (EVs). An inductive power transfer system is more convenient and safer compared with conventional plug-in systems to charge the battery pack of EVs. Power levels 1, 2, and 3 are discussed, and future aspects, such as roadbed charging, are presented. Auxiliary inductor current, primary coil current, secondary coil current, battery charging current, and switch currents are some currents analyzed during the different modes operation with variation in the voltages across the switches and Li-ion battery. AC is the dominant method of transporting power because it offers several advantages over DC, including lower distribution costs and easier conversion among different voltage levels, to the invention of a transformer. In the United States, the typical AC main line is 120 V. Converters steer an AC, as its voltage also alternates, into reactive impedance elements, such as inductors and capacitors, where it is stored and integrated.
