文档介绍：江苏技术师范学院毕业设计说明书(论文) 数显直流稳压电源设计摘要: 本文介绍一种数字显示的直流稳压电源设计。本电源输出电压可以调整,调压范围为 - ,而且具备输出电压可以显示的功能。输出最大电流为 500mA ,可步进 调整。电源的主控电路采用 AT89C51 单片机,并能够通过液晶直观地显示出电压。设计分析了各个模块电路和整机的工作原理,给出了整机工作的硬件实现和主要的软件流程设计。直流稳压系统的总体的设计方案主要由变压器、整流滤波、稳压、电压液晶显示几部分组成。本电源具有设计简单灵活,成本低,效率高,调整精度高等优点,在市场上有一定的应用前景。关键词:直流稳压电源;单片机;液晶显示 Digital DCP ower S upply D esign Abstract :This article describes adigital display ofthe DC power supply design. The power supply output voltage can beadjusted regulator for -, but also with the output voltage can be displayed. Maximum output current is500mA, step the adjustment. The power supply control circuit using AT89C51 microcontroller, and the ability tovisually display through the LCD voltage. The design and analysis ofthe circuit ofeach module and the whole works, given the hardware implementation ofthe whole work and the main software process design. The overall design ofthe DCtransformer, rectifier filter, regulator, voltage digital display several parts. The power supply has asimple, flexible, low cost, high efficiency, toadjust the high precision, acertain application prospects inthe market. K eyword :DCpower supply; Single chip puter ;LCD 江苏技术师范学院毕业设计说明书(论文) 目录前言............................................................................................................................ 1 第1章设计任务及设计要求.............................................................................. 2 设计任务.......................................................................................................... 2 设计要求.......................................................................................................... 2 总体设计方案................................................................................................. 2 第2章系统硬件电路设计.................................................................................. 4 系统电源模块................................................................................................. 4 稳压直流电源的基本组成.