摘要
设计了一个基于MC9S12XS128单片机的超低频信号发生器,详细介绍了该信号发生器的工作原理、硬件电路设计以及软件设计流程。该信号发生器利用正弦脉宽调制(SPWM)方法产生频率和幅值都可调的超低频正弦信号。实际应用表明,该发生器具有输出精度高、纹波稳定等优点,对超低频信号发生器的设计具有参考价值。
An ultra low frequency signal generator based on MC9S12XS128 microcontroller is designed,the working princi- ple,hardware circuit design and software design process of the signal generator are described in detail.The signal generator using sinusoidal pulse widthmodulation （SPWM） method to produce frequency and amplitude adjustable ultra low frequency sinusoidal signal.The practical application show that the generator has the advantages of high precision,stable output ripple.
出处
《工业控制计算机》
2016年第7期154-155,共2页
Industrial Control Computer
