Recently, the requests for high gain wireless power systems are increasing rapidly in the new material and renewable resource field. The high voltage gain is still challenging in the wireless power transfer research. This paper presents a high voltage gain inductive power transfer system design method using the S/SP topology. The misalignment effect on voltage gain and the ZVS state achievement is considered. To reduce the system weight and volume, the PCB coil is used to design the prototype system. Experiments have shown that the designed prototype can provide a high voltage gain with the anti-misalignment ability and light-weight feature.

Wireless power transfe;misalignment optimization;S/SP compensating topology;PCB coil