A Design Procedure for CPT System with LCL Resonant Network

Capacitively coupled wireless power transfer (CPT) is an alternative technology of inductively coupled wireless power transfer. When a CPT system is driven by a Class-E power amplifier and compensated by a LCL resonant network, a new design procedure is proposed in this paper. Under the premise of achieving the optimal load of the Class-E power amplifier after inserting a LCL resonant network, the procedure can help to find a stable voltage gain relative to the deviation of the operating frequency. The theory analysis is verified by the experiments.