毕业设计论文-ROF在光接入网中的应用论文.pdf

本文主要论述了一种基于
51
单片机为核心控制器的数控直流电源的设计原理和实
现方法。该电源具有电压可预置、可步进调整、输出的电压信号和电流信号可同时显示功
能。文章介绍了系统的总体设计方案,其主要由微控制器模块、稳压控制模块、电压
/
电流
采样模块、显示模块、键盘模块、电源模块五部分构成。该系统原理是以
STC89C52
单片
机为控制单元,以数模转换芯片
DAC0832
输出参考电压控制电压转换模块
LM317
输
出电压大小,同时输出稳压、恒流采用模数转换芯片
ADC0832
对采样的电压、电流转换
为数字信号,再通过单片机实现闭环控制。文章最后对数控直流电源的主要性能参数进
行了测定和总结,并对其发展前景进行了展望。单片机(
MCU
);数模转换器(
DAC
);模数转换器(
ADC
);闭环控制
惠州学院毕业论文Based on the 51 microcontrollernumerical DC
power supply designAuthor
:
Liu Xuezhi Major
:
Electronic information technology
Teacher
:
Huang Lin Title
:
Associate ProfessorAbstractThe method of this paper based on the 51 microcontroller core of the numerical
controller DC power supply design theory and realization. The power supply has some
functions such as presetting voltage, stepping adjustment, displaying the output voltage
signals and current signals at the same time. This paper introduces a general designing plan of
the system, which is mainly consisted of micro-controller module, DC Regulators module,
voltage/current sampling module, display module, keyboard module, power supply module.
The system is based on the principle of single-chip puter to control the unit
STC89C52 to DAC0832 digital-to-analog converter chip reference voltage to control the
output voltage LM317 output voltage conversion module size, while the output voltage
regulator, current use of analog-to-digital converter ADC0832 chip sampling of voltage and
current converted to digital signals, and then through the single-chip closed-loop control to
achieve. Article on the main DC power C performance parameters were measured
and summarized, and their development microcontroller (MCU)
,
the Digital to Analog (DAC)
,
the Analog to
Digital (ADC)
,
the closed-loop control基于51单片机数控直流电源的设计1.
前言………………………………………………………………………………
1

研究背景及意义…………………………………………………………………
1

国内外研究现状…………………………………………………………………
1

课题的主要内容…………………………………………………………………
2

论文的总体结构……………