专业名称:电气工程及自动化
学生班级: 140483
学生姓名: 孙国太 周佳武
指导老师: 杨谊华
课程设计任务书
直流稳压电源
(一)设计目的
1、学习直流稳压电源的设计方法;
2、研究直流稳压电源的设计方案;
3、掌握直流稳压电源的稳压系数;
1、技术指标:要求电源输出电压为12V,输入电压为交流220V,最大输出电流为Iomax=500mA,稳压系数Sr≤5%。
2、设计基本要求
1).设计一个能输出内孔撑圆涨紧夹具12V的直流稳压电源;
2).拟定设计步骤和测试方案;
3).根据设计要求和技术指标设计好电路,选好元件及参数;
4).要求绘出原理图,并用Proteus仿真;
5).在万能板上制作一台直流稳压电源;
6).测量直流稳压电源的稳压系数;
7).具有过流保护。
8).用三端稳压器W7800系列。车模门
9).撰写设计报告。
(三)设计提示
1、参数测量
集成电路选W7812稳压器。测量稳压系数:在负载电流为最大时,分别测得输入交流比220V增大和减小10%的输出Δvo,并将其中最大一个代入公式计算Sr,当负载不变时,Sr=Δ除铁VoVI/ΔVIVO水上滚筒。
2、实验仪器设备
数字万用表、万能板、示波器
3、设计用主要器件
变压器、整流二极管、稳压二极管、集成稳压器(W7812)、电容、电阻若干。
(四)设计总结
1、总结直流稳压电源的设计方法和运用到的主要知识点,对设计方案进行比较。
2、总结直流稳压电源主要参数的测试方法。
勺铲第一章 绪论············································4
第二章 电路设计
3.1直流稳压电源的基本原理······································5
3.2降压变压器··················································5
3.3整流电路····················································6
3.4滤波电路····················································8
3.5稳压电路····················································8
3.6保护电路····················································9
3.7原理图,PCB和proteus仿真····································9
3.8元器件选择和电路参数计算说明tomgro································10
第三章 制作和调试
3.1制作·······················································11
3.2注意事项·····················································11
3.2测试·························································11
3.2.1空载检查测试···········································12
3.2.2负载检查测试···········································12