A Novel Zero Voltage Switching Inductive Power Transfer Topology Using Current-fed Converter for EV Battery Charging Applications

This paper presents a new inductive power transfer topology for EV battery charging applications. The transmitter side converter is selected as current-fed half bridge to achieve both ZVS turn-on and turn-off of all inverter switches. The receiver side converter is voltage doubler topology to achieve higher voltage gain and to reduce the number of components onboard. To make the converter suitable for higher power application, the transmitter side tank network is used as (C) (LC) type whereas the receiver side tank network is selected as series LC type to keep least number of components in EV. The proposed converter is analyzed and simulated in PSIM 10. A 1.2kW lab prototype is developed and experimental results are included to verify the analysis and simulation results.