工矿自动化Issue(6)：101-103,3.
基于单片机的数字脉宽调制器
Digital PWM Based on Single-chip Microcomputer
邓靖靖 1牛晶 2史玉芳2
作者信息
- 1. 苏州科技学院电子与信息工程学院,江苏苏州,215011
- 2. 中国矿业大学信电学院,江苏徐州,221008
- 折叠
摘要
Abstract
In view of resource problem caused by using two timers/counters of single-chip microcomputer to realize PWM, the paper proposed a method of using single timer/counter to realize PWM. It gave characteristics of PWM signal and timer/counter of MCS-51 single-chip microcomputer, and detailedly introduced implementation of the method by an example of PWM control of hydraulic proportion valve and analyzed performances of the PWM. The analyzing result showed that the PWM can meet with general application and solves problem of resource shortage of timers/counters in single-chip microcomputer, but frequency, phase accuracy and stability of PWM signal are influenced by interrupt response time in some degree.关键词
数字脉宽调制器/单片机/定时器/计数器/PWMKey words
digital pulse width modulator/ single-chip microcomputer/ timer/ counter/ PWM分类
矿业与冶金引用本文复制引用
邓靖靖,牛晶,史玉芳..基于单片机的数字脉宽调制器[J].工矿自动化,2011,(6):101-103,3.
