集成直流稳压电源的设计

论文编号:JD1065  论文字数:5817,页数:23

摘要

 直流稳压电源广泛应用于各种电子产品,不同的电路对电源的要求是不同的。在很多电子设备和电路中需要一种当电网电压波动或负载发生变化时，输出电压仍能基本保持不变的电源。电子设备中的电源一般由交流电网提供，再经变压、整流、滤波、和稳压四个主要部分构成。本设计的主要内容是围绕着如何使串联可调直流稳压电源输出直流电压稳定、脉动成分减小而展开的。首先介绍了稳压电源的设计方法，接着介绍了电容滤波电路的性能特点，然后介绍了各单元电路设计仿真，并在电路中采用了提高稳定度，提高温度稳定性及限流型过流保护电路的具体措施，以确保电路安全稳定的工作。
 
关键词：电源、稳压、整流、滤波、保护

Abstract
 the cocurrent voltage-stabilized source widely applies in each kind of electronic products, the different electric circuit to power source''s request is different. Needs one kind in many electronic installations and the electric circuit, when the network voltage fluctuation or the load changes, the output voltage still could maintain the invariable power source basically. In electronic installation''s power source by exchanges the electrical network to provide generally, passes through the live pressure, the rectification, the filter again, and the constant voltage four main part constitutions. How does this design''s primary coverage revolve to cause the series adjustable cocurrent voltage-stabilized source output DC voltage to be stable, the pulsation ingredient reduces launches. First introduced voltage-stabilized source''s design method, then introduced the electric capacity filter circuit''s performance characteristic, then introduced various units circuit design simulation, and used in the electric circuit enhanced the stability, enhanced the temperature stability and the current limiting overflow protection circuit''s specific measures, guaranteed the electric circuit safe stable work.

key word: The power source, the constant voltage, the rectification, the filter, protect

目 录
摘要 1
Abstract 2
1 概述 4
1．1总体原理框图 4
1.2稳压电源的设计方法 4
2 各单元电路原理及设计方案 5
2.1 小功率整流滤波电路 5
2.1.1半波整流电路 5
2.1.2全波整流整流电路 6
2.1.3 桥式整流电路 7
2.2 滤波电路 8
2.2.1 电容滤波电路 8
2.2.2 电感滤波电路 10
2.2.3复式滤波电路 11
2.2.4Π型滤波电路 12
2.3 直流稳压电路 12
2.3.1　稳压管稳压电路 13
2.3.2 串联反馈稳压电路 14
2.3.3三端集成稳压电路 15
3 各单元电路设计仿真 18
3.1选择集成稳压器，确定电路形式 18
3.2 整流电路的选择和仿真 19
3.3 滤波电路选择和仿真 20
3.4稳压电源的安装与调试 21
4 元件清单 22
5 收获体会 23
6参考文献 23