Highly Efficient Single-Switch-Regulated Resonant Wireless Power Receiver With Hybrid Modulation

In this paper, a highly-efficient single-switch-regulated resonant wireless power receiver with hybrid modulation is proposed. To achieve both high efficiency and good output voltage regulation, phase shift pulse width are simultaneously applied. The soft switching operation in topology achieved by the cycle-by-cycle adjustment between input current gate drive signal also attributed to reactive components such as series-compensated secondary coil parasitic capacitor of active switch . leads low EMI. By adjusting duty ratio switch, tight regulation can be attained. steady-state dynamic models analytically derived order properly design feedback controller. An experimental setup two-coil transfer system, including hardware prototype proposed receiver, constructed for verification. results show effectiveness soft-switching while maintaining voltage, regardless line load variations.