程控直流稳压源设计与实现

论文编号:DZXX153  论文字数:14742,页数:50

摘要
 随着时代的发展，数字电子技术已经普及到我们生活，工作，科研，各个领域，本文将介绍一种数控直流稳压电源，本电源由模拟电源、显示电路、控制电路、数模转换电路、放大电路和模数转换电路六部分组成。
 准确说就是模拟电源提供各个芯片电源、数码管、放大器所需电压，显示电路用于显示电源输出电压的大小。同时分析了数字技术和模拟技术相互转换的概念。与传统的稳压电源相比具有操作方便，电源稳定性高以及其输出电压大小采用数码显示的特点可通过按键对其输出电压值进行步进控制（±0.1V），并且在按键长时间按下的时候能连续增加或减小。输出电压值采用五位数码管显示，数码管所显示的值与电源的输出电压值相等。
关键词： 数控数显稳压电源，单片机STC89C52，数模转换DAC0832，译码器74HC373

ABSTRACT
 Along with the development of the ages, the numerical electronics technique has already make widely available to our life, work, research, each realm, this text will introduce a kind of number to control direct current steady press power supply, this power supply from imitate power supply, show electric circuit, control electric circuit, few molds conversion electric circuit and enlarge electric circuit to constitute for four-part cent. Accurate say be imitate power supply to provide each electric voltage that chip power supply, the figures tube, enlarger need; the manifestation electric circuit used for showing the power supply outputs electric voltage of size. Analyzed a numerical technique and imitates the concept that the technique converts mutually in the meantime. With traditional steady press power supply to compare to have an operation convenience, the power supply stability high characteristics, its exportation electric voltage size adoption figures show.
 Abstract This task designs a regulated power supply of direct current with numerical control and numeric display, this power supply includes the modular circuit of direct current of stabilized voltage, protective circuit modular and voltage adjust modular etc. We can carry out step-by-step control through the button for its total voltage ( ±0.1 V ), and the voltage value can increase or reduce continuously when button is pressed for seconds . Demonstration adopts the digital tube, the voltage value showed by the digital tube should be equal with the voltage value by the power supply outputs. Active, not passive. The active property is also the reason while this system is so highly regarded!
 Keywords:  Intrusion Detection System，SCM STC89C52，DAC0832，74HC373
目录

摘要Ⅰ
ABSTRACTⅡ
第1章 引言．1
1.1 背景1
1.2 研究内容2
第2章 直流稳压源．3
2.1 稳压源概述3
2.1.1 稳压源的定义3
2.1.2 稳压源的分类4
2.2 直流稳压源概述5
2.2.1 直流稳压源的组成5
2.2.2 直流稳压源的原理5
2.3 直流稳压源的指标5
2.3.1 特性指标6
2.3.2 质量指标6
2.3.3 极限指标7
第3章 程控直流稳压源设计．8
3.1 系统设计原理8
3.2 系统主要设计方案8
3.3 程控直流稳压源总体结构9
第4章 DAC0832数模转换模块设计与实现10
4.1 DAC0832简介．10
4.2 DAC0832引脚功能．11
4.3 DAC0832设计与实现．12
第5章 TLC1543模数转换模块设计与实现13
5.1 TLC1543简介．13
5.2 TLC1543引脚功能．13
5.3 TLC1543设计与实现．14
第6章 升压模块﹑串联线性稳压模块的设计与实现．15
6.1 升压模块的分析15
6.2 串联线性稳压模块的分析18
第7章 控制﹑键盘和显示模块的设计与实现．20
7.1 控制模块的分析20
7.2 显示模块的分析22
7.3 键盘模块的分析26
第8章 电路的实际调试．27
8.1 显示电路与键盘的调试27
8.2 升压模块的调试28
8.3 串联线性稳压模块的调试29
8.4 AD/DA模块的调试．29
第9章 结束语．30
致谢31
参考文献32
附录A 源代码．33
附录B 实物照片．46

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