声光控制开关毕业设计.doc

PAGE （2011届） 应用电子技术专业专科毕业论文 论文题目：声光控制开关 学 院、系： 电子信息工程学院 专 业： 应用电子技术 学 生 姓 名： 班 级： 学 号 指导教师姓名： 职称 最终评定成绩 2011年 6 月 PAGE 摘要 平时我们晚上走在楼梯道里也会发现灯会突然亮，走过后灯会自动灭。这是因为如果让楼道的照明灯一直亮着，则难免会浪费电力资源，特别在当今提倡节约型社会里这就很不合理了。因此设计一种既不浪费电力又很方便实用的照明灯系统是很有实用价值意义的一件事。这里通过设计此系统电路来说明光敏电阻，双向可控硅，驻极体传声器，CD4011等器件的用法和原理。 在本设计中介绍了声光控路灯控制器白天光照好，不管过路者发出多大声音，都不会是灯泡发亮。夜晚光暗，电路的拾音器的组成、性能，适用范围及工作原理， 节电效果十分明显，同时也大大减少了维修量、节约了资金，使用效果良好。只要检测到有碎发声响，就会自动亮为行人照明，过数十秒后又自动熄灭，节能节电。 关键词: 电源 ，整流，稳压器， 可控硅，CD4011， 光敏电阻，驻极体传声器 Abstract We usually go at night Lantern Festival at the stairs will find a sudden hang on, walk off automatically after the Lantern Festival. This is because if you leave the corridor of light has been lit, there is inevitably a waste of power resources, especially in todays society, which advocates saving is very unreasonable. So the design is neither a waste of power and very convenient and practical lighting system is very practical sense of one thing. Here the circuit through the design of this system to illustrate the photosensitive resistance, triac, electret microphone, CD4011 and principles of the use of such devices.Introduced in the design of sound and light control during the day light lamp controller is good, no matter how sound passer issued, will not be the lamp lit. Light and dark at night, the pickup circuit composition, performance, application and working principle of power-saving effect is very obvious, but also greatly reduce the amount of maintenance, save money, use good effect. Burst as long as the detected sound, it will automatically light for lighting, over tens of seconds and then automatically turns off, energy saving.Keywords: power supply, rectifier, regulator, SCR, CD4011, photosensitive resistors, electret microphone 目 录 摘要……………………………