摘要：逆F类放大器是F类放大器的改进形式，利用逆F类放大器可以进一步提高旋转变压器功率驱动电路的效率。逆F类放大器与F类放大器的输出级波形不同，其电压波形为半波正弦波、电流波形为半波方波，而负载网络则谐振于偶次谐波。通过理论计算和Simulink仿真实验证明逆F类放大器旋转变压器功率驱动电路完全可行，且输出效率高于F类电路、波形有明显改善。

关键词：逆F类放大器; 输出效率;仿真试验

Abstract: The inverse classF amplifier is improve by the classF amplifier, and can be used to promote the efficiency of a resolver power drive circuit. It is different between the inverse classF amplifier and the classF amplifier at the output waveform, the inverse classF amplifier is sinusoidal wave in output voltage and square wave in output current, and the loadnetwork of the inverse classF amplifier is resonated with even harmonics. The feasibility of the inverse classF resolver power drive circuit was proved by theoretical calculation and Simulink simulation in this paper. It is also find that the efficiency of the inverse classF resolver power drive circuit is higher than classF circuit and the output waveform is improved.

Key words: inverse classF amplifier; efficiency; Simulink simulation