小夜灯的设计

小夜灯的设计

摘要：针对目前社会上很多地方使用长明灯照明，不能实现灯光的照明智能化造成电能的巨大浪费。为响应科学减排和节能科学发展的号召而设计了声光控小夜灯控制系统。本系统采用咪头、光敏电阻构成光照信号和声音采集信号电路。通过运放LM324对信号放大并同时运用74LS08输入与门构成逻辑电路，进行逻辑控制，给出是否亮灯的信号，由RC充放及开关电路执行，通过控制继电开关控制小夜灯。此系统能很好的控制灯的亮灭，即在有声音和无光情况下灯亮，其他情况下灯灭，从而达到节能的效果。

关键字：LM324；74LS08 ；RC充放电电路；继电开关

Design Night Light

Chaohu College Department of Physics and Electronic Science, Chaohu, Anhui 238000 Abstract: Currently, there are many places for the use of long lamp lighting, intelligent lighting, light can not be realized causing a huge waste of energy. Scientific reduction and energy

conservation in response to the call of scientific development and design of sound and light control night light control system.

This system uses the microphone, photoresistor light signals and sound collection constitutes the signal circuit. LM324 op amp through the signal amplification and use both of the input AND gate 74LS08 form logic circuits, logic control, whether the light signal is given by the RC charge and discharge and the switching circuit implementation, by controlling the relay switch to control night light.

Good control of this system can eliminate the bright lights, that is no light in the case of sound and lights, the other case the lamp, so as to achieve energy-saving effect. Keywords: LM324; 74LS08; RC charge and discharge circuit; Relay switch

目录

前言....................................................... 错误!未定义书签。第一章系统组成及工作原理................................. 错误!未定义书签。总体设计思路............................................. 错误!未定义书签。电路各模块设计简介....................................... 错误!未定义书签。. 1电源电路.............................................. 错误!未定义书签。声控电路................................................. 错误!未定义书签。光控电路................................................. 错误!未定义书签。. 4混合控制模块.......................................... 错误!未定义书签。. 5开关延时电路.......................................... 错误!未定义书签。第二章混合控制模块的设计................................. 错误!未定义书签。混合控制模块设计.......................................... 错误!未定义书签。混合控制模块原理.......................................... 错误!未定义书签。设计方法与参数的确定...................................... 错误!未定义书签。电路仿真图................................................ 错误!未定义书签。第三章电路的焊接与调试................................... 错误!未定义书签。电路的安装与焊接.......................................... 错误!未定义书签。混合控制模块的调试......................................... 错误!未定义书签。第四章系统调试........................................... 错误!未定义书签。

结论....................................................... 错误!未定义书签。

致谢..................................................................................... .. (11)

参考文献................................................... 错误!未定义书签。附录一系统总电路图....................................... 错误!未定义书签。