Wireless Power Transfer with Resonant Pulsed Current Converter

This paper presents a resonant pulsed current converter as a new architecture for inductive-type wireless power transfer applications. The operation principle of inductive power transfer with no direct connection is discussed in relation to the resonant pulsed current. The current and voltage behaviors at the circuit components are analyzed, including the resonant function of the organic compensation network from the converter topology. Simulation results demonstrate that the non-pulsating input current with low ripple can be achieved. Moreover, the resonant pulse current in the primary side is 3.5 times the input current, resulting in a higher induced current capability and offers 98.2 % efficiency at 1 kW output power.