1.前言在脉宽调制发射机中,脉宽调制器与传统的推挽音频放大调制器根本不同,它对音频信号造成失真的原因与普通线性放大调制器也就截然不同。本文从研究脉冲波形和面积的变化出发,并以串馈阴极调制式脉宽机为例,对音 1. Introduction In pulse-width modulated transmitters, the pulse-width modulator is fundamentally different from the traditional push-pull audio amplification modulator. The reason why it distorts the audio signal is quite different from that of an ordinary linear amplification modulator. In this paper, starting from the study of pulse waveform and area changes, and pulse-fed cathode modulation pulse width machine, for example, the tone