毕业设计论文
模块化电源基于单片机的数字可调稳压电源的设计
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蚌埠学院教务处制
                                                                                                                                                                                                                                           
基于单片机的数字可调稳压电源的设计
摘要：基于单片机的数字可调直流稳压电源由于原理简单、便于操作、稳定性好、精度高、成本低、易于实现等诸多优点而受到越来越广泛的重视。其性能比传统的可调直流稳压电源好，非常适合一般教学和科研使用。
本文通过对一个基于单片机的数控直流稳压电源的设计，将单片机数字控制技术、有机地融入直流稳压电源的设计中，设计出一款数字化通用直流稳压电源，详细介绍了AT89C52单片机应用中的键盘扫描原理、数码管动态显示原理、定时器中断原理，从而了解单片机相关指令在各方面的应用，同时还介绍了数模转换芯片DAC0832的工作原理。系统由模拟电源、控制电路、数模转换电路、放大电路、显示电路等部分构成，输出0-12V电压范围，步进值为0.1V的直流电源。
电源的数字化控制是人们追求的目标之一，人们对它的要求也越来越高，数控直流稳压电源
能给人们带来很大的方便，为我们工作、科研、生活提供更好、更方便的服务。本题采用单片机和其他元件及外围电路，开发一个数字可调式稳压电源，能够设定输出电压值、电压输出显示等功能。
关键词：单片机、直流、稳压、数模转换
Based on single-chip digital adjustable regulated power supply design 
Abstract: Microcontroller-based digital adjustable DC power supply as simple in principle, easy operation, good stability, high accuracy, low cost, easy to implement, and many other advantages of being more widely appreciated. Performance than the traditional adjustable DC power supply is good, very suitable for general teaching and research use.
    In this paper, a microcontroller-based digital controlled power supply design, the single chip digital control technology, organic integration into the DC power supply design, digital design of a universal DC power supply, details of the AT89C52 microcontroller applications The keyboard scanning principle, the digital dynamic display principle, the timer interrupt pr
inciple, to understand instruction in all aspects of SCM-related applications, but also introduces the DAC0832 digital-analog converter chip works. System consists of analog power supply, control circuits, digital to analog conversion circuit, amplifier circuit, display circuit and other parts, output 0-12V voltage range, step value of 0.1V DC power supply.
    Digital control of power is one of the goals people pursue, people demand more and more of it, NC DC power supply can give them great convenience for our work, scientific research and to provide better and more convenient service. The problem with single chip and other components and peripheral circuits, the development of a number of adjustable power supply, can set the output voltage, the voltage output display.
Keywords: microcontroller; DC; regulators; digital to analog conversion