一种基于射极输出器关断的声光控LED照明灯  

A sound-light control switch LED lamp based on emitter output circuit

作　　者：卓郑安[1] 徐卓超[1] 林诗扬[1] 

机构地区：[1]上海工程技术大学,上海201620

出　　处：《微型机与应用》2011年第8期89-90,共2页Microcomputer & Its Applications

摘　　要：声光控开关的主电流回路一般用可控硅控制。220V市电输出端串接普通白炽灯;交流电源经过桥式整流后输出的脉动交流开关接可控硅阳极,控制白炽灯的亮与暗。用基于射极输出器关断的声光控开关,控制LED照明灯工作,用于没有220V市电电网的特殊公共场所的照明。照明方法简便,方便人们生活。Generally,the main circuit of sound-light control switches is carried out by silicon controlled rectifier（SCR）.Firstly,the 220 V input voltage links to a incandescent lamp,then this voltage is rectified to formed an AC pulse signal which links to the anode pin of the SCR,this signal is used to control the brightness of the incandescent lamp.So this article focus on sound-light control switches based on the emitter output circuit,and how to control and illuminate the LED light on some special public places by using the 220 V input voltage provided by the city infrastructure.The control of the brightness is quite easy,and therefore brings much convenience of our daily life.

关 键 词：射极输出器 声光控开关 LED照明灯 可控硅 

分 类 号：TU113.6[建筑科学—建筑理论]