摘要
介绍了一种使用 80 5 1系列单片机内部定时 /计数器制作高分率PWM的软件设计方法 ,同时设计了把PWM信号转换成直流信号的硬件电路 ,以 12位D/A转换器为设计目标 ,给出了全部的软件和硬件及实验结果数据 ,精度达到了 0 .0 3% 。
A sort of software design method that uses the internal timer/counter of 8051 series single chip microprocessor to make high resolution is introduced.The hardware circuit that can convert PWM signal to DC signal is designed.Using 12 bits D/A converter as design aim,all of the software and hardware as well as the datum of experimental results are listed.The accuracy reaches to 0.03%,and the cost is extremely low.
出处
《吉林化工学院学报》
CAS
2002年第3期36-38,共3页
Journal of Jilin Institute of Chemical Technology
