《家用冰箱延时保护温控器设计》.

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1、《家用冰箱延时保护温控器设计》4.22江西赣江职业技术学院毕业设计题目：家用冰箱延时保护温控器设计学院电子工程学院姓名xxx学号xxxx专业电子信息工程技术届别2011届指导教师xxx职称教授二O一一年四月毕业论文（设计）诚信承诺书2目录摘要·························································································4前言·············································································

2、···········61．系统设计···················································································72．单元电路设计···········································································82.1直流稳压电源组成及其工作原理·······················································82.2延时保护电路组成及其工作原理··············

3、·········································82.3温控器电路组成及其工作原理··························································93．温度控制器电路设计····································································103.1电路组成·····················································································

4、103.2电路工作原理················································································104．电路组装与调试·············································································124.1电路组装·····················································································124.2电路调试········

5、·············································································125．元器件清单···················································································13参考文献··························································································14致谢·····················

6、·····································································153摘要本文主要介绍家用电冰箱温度控制器，具有延时保护、温度控制功能。由于开机电流很大，常会引起家用电度表工作失常以及烧坏电源开关或插座。延时保护可有效减弱开机电流的冲击，起到保护作用。温控器线路简单、无机械触点、温控范围宽、使用安全方便、控温效果理想并有超温指示。【关键词】电冰箱延时温控器4AbstractThispaperintroducesthehouseholdrefrigeratortemperaturecontroller,

7、withatimedelayprotection,temperaturecontrol.Sincethecurrentgreatpower,oftencausemetermalfunctionandthehomeburnedpowerswitchoroutlet.Delayprotectioncanbeeffectivelyreducedtheimpactofthecurrentboot,hasprotectiveeffects.Temperaturecontrolcircuitissimple,nomechani