基于单片机的LCD数字电流表的设计与实现  

A design and implementation of LCD digital voltmeter based on the single chip microcomputer

作　　者：张玲丽[1] 

机构地区：[1]武汉职业技术学院电子信息工程学院,湖北武汉430074

出　　处：《微型机与应用》2015年第5期32-34,共3页Microcomputer & Its Applications

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.

关 键 词：单片机 数字电流表 A/D转换器 液晶显示屏 

分 类 号：TM932[电气工程—电力电子与电力传动]