电风扇控制--数字电路课程设计报告

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1、家用电风扇控制逻辑电路设计电子课程设计报告题目名称：家用电风扇控制逻辑电路设计姓名：邹秀兰专业：通信工程班级学号：08042104同组人：曾令春指导教师：韦芙芽南昌航空大学信息工程学院2010年9月日摘要随着我国经济的发展，居民家中的电器是越来越多，电风扇也成为了我们生活中必不可少的家用电器。以前的台式电风扇和落地式电风扇都是采用机械控制，主要控制风速和风向。然而随着电子技术的发展，目前的家用电风扇大多采用电子控制线路取代了原来的机械控制器，是电风扇的功能更强，操作也更简便。使电风扇的使用变得更为人性化。本次课程设计的题目是：家用电风扇逻辑控制电路的设计。由三个

2、按键分别控制风速、风种和开关，并分别用不同颜色的发光二级管来显示风扇工作的状态。附加按键提示音及定时功能。增加这些都是为了提高电风扇的人性化。基本电路是利用四片D触发器74LS175建立起“风速”及“风种”状态锁存电路，并由74LS08、74LS1517、4LS175及74LS00构成“风速”及“风种”的循环。定时部分由555单稳态脉冲电路及74LS192移位寄存器和74LS48译码器构成。经过一系列的分析、准备。由于库房没有大的板子故将定时部分焊在另一块板子上，所以本次课程设计除在美观上有点欠缺外达到了全部的要求。关键字:电风扇、按键、脉冲、循环。目录前言··

3、······························································4第一章设计内容及要求··············································5第二章系统设计方案选择2.1方案一·····················································62.2方案二·····················································6第三章系统组成及工作原理3.1系统组成··············

4、·····································73.2工作原理···················································8第四章单元电路设计、参数计算、器件选择4.1状态锁存电路电路············································`94.2触发脉冲电路···············································114.3风种控制电路············································

5、···124.4消抖电路···················································144.5单稳态电路·················································15第五章实验、调试及测试结果与分析································16结论······························································17参考文献········································

6、··················18附录一····························································18附录二····························································20附录三····························································22前言科学技术是第一生产力。科技使我们由手工时代进入了现代的电器时代。同时科技在国家的国防事业中发挥了重要的作用，只有科技发展了才能使一个国

7、家变得强大。而作为二十一世纪的主义，作为一名大学生，不仅仅要将理论知识学会，更为重要的是要将所学的知识用于实际生活之中，使理论与实践能够联系起来。电子课设是将理论与实践相结合的一个非常重要的环节，是一个能真正能提高学生动手与实践能力的环节。家用电器已经变得极为普遍，成了我国家庭中最为普及的家用电器之一。随着近几年我国经济的快速发展人们的生活水平也逐渐提高了，人们对家用电器的要求也越来越高。人们希望家用电器能够实现智能化及人性化。而作为人们生活中比不可少的家用电器，电风扇的智能化及人性化的设计就显得尤为重要。家用电风扇控制逻辑电路设计就是针对这一问题而研究设计的。

8、以前的家用的电风扇一个按