摘要
本文中数字电流表的控制系统采用AT89S51单片机,A/D转换器采用ADC0809为主要硬件,实现数字电流表的硬件电路与软件设计。该系统的数字电流表电路简单,所用的元件较少,成本低,调节工作可实现自动化。数字电流表可以测量0~200 m A的8路输入电流值,并在LCD液晶显示屏上显示出来。
In this paper, a hardware and software design of an ammeter was given. This system is based on AT89S51. The ammeter contained an MD converter using ADC0809 as main hardware. Its characteristics were significant, such as simple, less components, low cost. It adjusted its work automatically. The digital ammeter can measure 0-200 mA 8-way input current values, and displayed on the LCD screen.
出处
《微型机与应用》
2015年第5期32-34,共3页
Microcomputer & Its Applications
关键词
单片机
数字电流表
A/D转换器
液晶显示屏
single chip microcomputer
digital ammeter
A/D converter
liquid crystal display
