基于单片机的信号发生器设计与仿真

The Design and Simulation of Signal Generator Based on MCU

文章针对传统信号发生器存在元器件分散性造成波形失真的弊端,提出了基于单片机的,用程序实现方波、锯齿波、三角波、正弦波等波形的信号发生器方案.并在Prot eus电子设计平台,对方案进行了仿真.实现了波形的自由切换,频率和幅度在线调整,从根本上解决了波形失真的问题.

As for the defects of waveform distortion caused by the traditional waveform generator for the existence of scattered components, this paper has put forward a signal generator program of square wave, saw-tooth wave, triangle wave and sine wave achieved by procedures and based on MCU. In addition, on the PROTEUS electronic design platform, a simulation program is carried out,. Having achieved the free switching of waveform, the on-line adjustment of frequency and magnitude, which gives a fundamental solution to the wave distortion.