It adapts SPWM as the method of DC/AC, the main loop current feeding back composes a closed loop, which controls the frequency of energy, thereby the wireless energy is efficiently passing, and the simulating result is given.

• 采用变频式SPWM正弦脉宽调制方法,由主回路电流反馈构成闭环,控制能量发射天线的发射频率,从而提高实现最佳的能量耦合效率,并给出了仿真结果。