摘 要
公共场所和居民居住区的公共楼道普遍使用机械手动开关,由于各种原因往往出现许多灯泡点亮长明的现象,故使灯泡寿命短,浪费电量,为国家、单位、个人造成经济损失。因此,设计研制一种电路新颖、安全节电、结构简单、安装方便的声控走廊灯节能自动开关显得相当有必要。使公共场所和居民居住区的公共楼道灯在白天时不亮,晚上闻声自亮,待人走后,几十秒后自动关闭,既方便,又省电。
本次设计的是一个实用性强以及灵敏度较高的声光控制开关,人们只要跺跺脚或拍拍手就能使电路触发。本电路使用了一只CMOS门电路TC4081BP、一个CRZ2-113F型小型驻极体式电容话筒、一个CDS型光敏电阻器以及若干电阻、电容就能将电路触发,使其导通,将电灯打开。它不需要发送关闭信号,由电路自身的延时电路将灯关闭。当灯被打开后,延时电路延时约25s后将灯自动关闭。该电路还具有自动光控作用,在白天由光敏电阻器控制着电路。即使受到声音信号的触发,开关也不会打开。
关键词: 信号放大;光电开关;声控电路;光控电路;延时电路
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ABSTRACT
Public places and residential areas of public corridor generally use mechanical manual switch, due to various reasons often appears many bulb lights burning phenomenon, so that the light bulb life short, waste of electricity, for the country, unit, individual economic loss caused by. Therefore, the circuit design and development of a novel, safe saving, simple structure, convenient installation control corridor lights energy-saving automatic switch is very necessary. Make public places and residential areas of public corridor lights during the day light, night, bright, be gone, a few seconds after closing, convenient, energy saving.
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