本文简介了低频电源的应用背景和交-交变频器的基本结构,着重分析了 在基于单片机的数字化交-交变频低频电源设计中,如何防止干扰。文章提出了 硬件和软件两方面抗干扰措施的实现方法,并对其工程应用做出了评价。 关键词:低频电源交-交变频抗干扰 ABSTRACT: The applying background of low frequency power supply, and the theory of how the cycloconverter working, and the parameter calculation of the system has be introduced。It stress introduced How to anti interfere Low—Frequency power base on micro—chip computer。The hardware and software way to anti interfere are expatiated. And the application of the system are appraised and discussed. Keywords: Low Frequency Power Supply Sine-wave frequency conversion Anti interfere