摘要
本文论述了利用MCU内部定时器结合PWM技术实现A/D转换的工作原理,转换算法,并较为详细的介绍了硬件电路的设计和改进的逐次逼近试探算法以及相应的程序设计思路,分析了采用PWM技术的A/D转换器的分辨率等。
This text has expounded the working principle of realizing A/D conversion that utilizes the timer within MCU and combines the technology of PWM. The design of hardware circuit, improved gradual approached trial arithmetic and relevant program design are discussed in detail. And it has analyzed the resolution of A/D converter based on the technology of PWM, etc.
出处
《微计算机信息》
北大核心
2007年第29期269-271,共3页
Control & Automation
基金
山东省自然科学基金(2004ZX34)
关键词
PWM
A/D转换分辨率
改进的逐次逼近试探算法
比较器
PWM, The resolution of A/D converter, improved gradual approached trial arithmetic, Comparator
