摘要
介绍了一种基于面积等效原理,采用查表法产生正弦脉宽调制(SPWM)波的方法。分析了查表法的原理,并结合1Hz的SPWM波产生实例,给出了部分程序清单和相关硬件电路图。该实现方法具有电路简单、成本较低、抗干扰性好、误差较小、实现较容易的优点。
Introduction was made to the method of sine pulse width modulation （SPWM） wave generated by table searching, which is based on area equivalence principle. The principle of table searching was analyzed. And combined with the actual example of 1Hz SPWM wave generation, this paper gave part of the program list and the related hardware circuit diagram. The realization method is with advantages of simple circuits, lower cost, good anti-interference, less errors, and easier realization.
出处
《电工电气》
2009年第12期9-12,共4页
Electrotechnics Electric
