小夜灯得设计摘要:针对目前社会上很多地方使用长明灯照明,不能实现灯光得照明智能化造成电能得巨大浪费。为响应科学减排与节能科学进展得号召而设计了声光控小夜灯控制系统。本系统采纳咪头、光敏电阻构成光照信号与声音采集信号电路。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,给出就是否亮灯得信号,由 RC 充放及开关电路执行,通过控制继电开关控制小夜灯。此系统能很好得控制灯得亮灭,即在有声音与无光情况下灯亮,其她情况下灯灭,从而达到节能得效果。 关键字:LM324;74LS08 ;RC 充放电电路;继电开关Design Night LightChaohu College Department of Physics and Electronic Science, Chaohu, Anhui 238000Abstract: 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 energyconservation 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................................................................................................................................1第一章 系统组成及工作原理 .......................................................................................... 2...
