節(jie)能燈工(gong)作原理 LED節(jie)能燈電(dian)路圖(tu)講解

一、節能燈工作原理

節(jie)能，在(zai)這個高能耗的(de)時(shi)代顯然是(shi)個當務之急(ji)，許多(duo)國家(jia)都把節(jie)能減排作為(wei)工業建設(she)和城(cheng)市(shi)改(gai)造的(de)首要任務。那么(me)作為(wei)國家(jia)鼓勵(li)使用(yong)的(de)節(jie)能燈，它有哪(na)些結構組成(cheng)呢(ni)(ni)？它的(de)工作原理又(you)是(shi)什(shen)么(me)呢(ni)(ni)？下面就讓(rang)小編為(wei)大家(jia)一一講解吧！

節能(neng)燈(deng)(deng)實際上就是一(yi)種緊湊型(xing)、自帶鎮(zhen)流(liu)器的日(ri)光(guang)燈(deng)(deng)，節能(neng)燈(deng)(deng)點燃時首先經過電子(zi)鎮(zhen)流(liu)器給燈(deng)(deng)管(guan)燈(deng)(deng)絲(si)加熱，燈(deng)(deng)絲(si)開端發射(she)電子(zi)（由于在(zai)燈(deng)(deng)絲(si)上涂(tu)了(le)一(yi)些電子(zi)粉），電子(zi)碰撞充(chong)裝在(zai)燈(deng)(deng)管(guan)內(nei)的氬(ya)原子(zi)，氬(ya)原子(zi)碰撞后(hou)取得(de)了(le)能(neng)量又(you)撞擊內(nei)部的汞原子(zi)，汞原子(zi)在(zai)吸(xi)收(shou)能(neng)量后(hou)躍(yue)遷(qian)產生(sheng)電離(li)(li)，燈(deng)(deng)管(guan)內(nei)構成等離(li)(li)子(zi)態。

燈管兩端電(dian)壓直接經過等離子態導通并(bing)發出(chu)253.7nm 的紫外線，紫外線激起熒光(guang)粉發光(guang)，由于(yu)熒光(guang)燈工作時(shi)燈絲(si)的溫(wen)度約在1160K左右，比白熾(chi)燈工作的溫(wen)度2200K-2700K低很多(duo)，所(suo)以(yi)它的壽命(ming)也大(da)進步，到(dao)達5000小時(shi)以(yi)上(shang)，由于(yu)它運用效(xiao)率(lv)較高(gao)的電(dian)子鎮流(liu)器，同時(shi)不存在白熾(chi)燈那樣的電(dian)流(liu)熱效(xiao)應，熒光(guang)粉的能(neng)量轉換效(xiao)率(lv)高(gao)，到(dao)達每(mei)瓦50流(liu)明以(yi)上(shang)，所(suo)以(yi)節約電(dian)能(neng)。

二、led節能燈電路圖

文(wen)介紹(shao)的(de)LED節能燈(deng)電路圖(tu)利(li)用220V電源(yuan)(yuan)供電，220V交(jiao)換電經(jing)C1降(jiang)壓(ya)電容降(jiang)壓(ya)后，經(jing)全(quan)橋整(zheng)流，再(zai)議決(jue)C2濾(lv)波后，經(jing)限流電阻R3給(gei)串聯(lian)的(de)80顆LED提供恒(heng)流電源(yuan)(yuan)(節能燈(deng)電路圖(tu)原理)

圖 1 led節(jie)能(neng)燈電路圖

圖(tu)(tu)1是(shi)一款貼(tie)片(pian)LED照(zhao)明燈(deng)(deng)(deng)具的(de)(de)(de)(de)(de)(de)(de)(de)(de)實用(yong)電(dian)(dian)(dian)路(lu)圖(tu)(tu)，該燈(deng)(deng)(deng)利(li)用(yong)220V電(dian)(dian)(dian)源(yuan)供電(dian)(dian)(dian)，220V交(jiao)換電(dian)(dian)(dian)經(jing)C1降(jiang)壓(ya)(ya)電(dian)(dian)(dian)容(rong)(rong)降(jiang)壓(ya)(ya)后經(jing)全橋整流(liu)(liu)(liu)再議決(jue)C2濾(lv)(lv)波(bo)后經(jing)限(xian)流(liu)(liu)(liu)電(dian)(dian)(dian)阻R3給串聯(lian)的(de)(de)(de)(de)(de)(de)(de)(de)(de)10顆貼(tie)片(pian)LED提供恒流(liu)(liu)(liu)電(dian)(dian)(dian)源(yuan)。貼(tie)片(pian)LED的(de)(de)(de)(de)(de)(de)(de)(de)(de)額定電(dian)(dian)(dian)流(liu)(liu)(liu)為(wei)20mA，但是(shi)我們在(zai)(zai)制作節能燈(deng)(deng)(deng)的(de)(de)(de)(de)(de)(de)(de)(de)(de)時間要(yao)思量許多方(fang)面的(de)(de)(de)(de)(de)(de)(de)(de)(de)因(yin)素對貼(tie)片(pian)LED的(de)(de)(de)(de)(de)(de)(de)(de)(de)影(ying)響，包羅光衰和(he)發(fa)熱的(de)(de)(de)(de)(de)(de)(de)(de)(de)問題，LED的(de)(de)(de)(de)(de)(de)(de)(de)(de)溫度對光衰和(he)壽命影(ying)響很大(da)，要(yao)是(shi)散熱不好很容(rong)(rong)易孕育產生光衰，因(yin)為(wei)LED的(de)(de)(de)(de)(de)(de)(de)(de)(de)特性是(shi)溫度升(sheng)高(gao)電(dian)(dian)(dian)流(liu)(liu)(liu)就會增(zeng)大(da)，以(yi)是(shi)一樣(yang)平常(chang)在(zai)(zai)做大(da)功(gong)率(lv)照(zhao)明時散熱的(de)(de)(de)(de)(de)(de)(de)(de)(de)問題是(shi)最緊張(zhang)的(de)(de)(de)(de)(de)(de)(de)(de)(de)，將影(ying)響到(dao)LED的(de)(de)(de)(de)(de)(de)(de)(de)(de)穩固(gu)性，小(xiao)功(gong)率(lv)一樣(yang)平常(chang)都采(cai)取自散熱要(yao)領，以(yi)是(shi)在(zai)(zai)電(dian)(dian)(dian)路(lu)計劃時電(dian)(dian)(dian)流(liu)(liu)(liu)不宜過大(da)。圖(tu)(tu)中R1是(shi)掩護電(dian)(dian)(dian)阻，R2是(shi)電(dian)(dian)(dian)容(rong)(rong)C1的(de)(de)(de)(de)(de)(de)(de)(de)(de)卸放電(dian)(dian)(dian)阻，R3是(shi)限(xian)流(liu)(liu)(liu)電(dian)(dian)(dian)阻警(jing)備電(dian)(dian)(dian)壓(ya)(ya)升(sheng)高(gao)和(he)溫度升(sheng)高(gao)LED的(de)(de)(de)(de)(de)(de)(de)(de)(de)電(dian)(dian)(dian)流(liu)(liu)(liu)增(zeng)大(da)，C2是(shi)濾(lv)(lv)波(bo)電(dian)(dian)(dian)容(rong)(rong)，實際在(zai)(zai)LED電(dian)(dian)(dian)路(lu)中可以(yi)不用(yong)濾(lv)(lv)波(bo)電(dian)(dian)(dian)路(lu)，C2是(shi)用(yong)來警(jing)備開(kai)燈(deng)(deng)(deng)時的(de)(de)(de)(de)(de)(de)(de)(de)(de)打(da)擊(ji)電(dian)(dian)(dian)流(liu)(liu)(liu)對LED的(de)(de)(de)(de)(de)(de)(de)(de)(de)陵犯，開(kai)燈(deng)(deng)(deng)的(de)(de)(de)(de)(de)(de)(de)(de)(de)瞬間因(yin)為(wei)C1的(de)(de)(de)(de)(de)(de)(de)(de)(de)存在(zai)(zai)會有一個很大(da)的(de)(de)(de)(de)(de)(de)(de)(de)(de)充(chong)電(dian)(dian)(dian)電(dian)(dian)(dian)流(liu)(liu)(liu)，該電(dian)(dian)(dian)流(liu)(liu)(liu)流(liu)(liu)(liu)過LED將會對LED孕育產生損(sun)傷(shang)，有了C2的(de)(de)(de)(de)(de)(de)(de)(de)(de)介入，開(kai)燈(deng)(deng)(deng)的(de)(de)(de)(de)(de)(de)(de)(de)(de)充(chong)電(dian)(dian)(dian)電(dian)(dian)(dian)流(liu)(liu)(liu)完全被C2汲取起到(dao)了開(kai)燈(deng)(deng)(deng)防打(da)擊(ji)掩護。該電(dian)(dian)(dian)路(lu)是(shi)小(xiao)功(gong)率(lv)燈(deng)(deng)(deng)杯(bei)最實用(yong)的(de)(de)(de)(de)(de)(de)(de)(de)(de)電(dian)(dian)(dian)路(lu)，占用(yong)體積小(xiao)可以(yi)方(fang)便(bian)的(de)(de)(de)(de)(de)(de)(de)(de)(de)裝在(zai)(zai)空(kong)間較小(xiao)的(de)(de)(de)(de)(de)(de)(de)(de)(de)燈(deng)(deng)(deng)杯(bei)里，現在(zai)(zai)被燈(deng)(deng)(deng)杯(bei)產品普遍的(de)(de)(de)(de)(de)(de)(de)(de)(de)接納。好處：恒流(liu)(liu)(liu)源(yuan)，電(dian)(dian)(dian)源(yuan)功(gong)耗小(xiao)，體積小(xiao)，經(jing)濟實用(yong)。但是(shi)在(zai)(zai)計劃時降(jiang)壓(ya)(ya)電(dian)(dian)(dian)容(rong)(rong)要(yao)接納耐壓(ya)(ya)在(zai)(zai)400V以(yi)上的(de)(de)(de)(de)(de)(de)(de)(de)(de)滌綸電(dian)(dian)(dian)容(rong)(rong)或(huo)CBB電(dian)(dian)(dian)容(rong)(rong)，濾(lv)(lv)波(bo)電(dian)(dian)(dian)容(rong)(rong)要(yao)用(yong)耐壓(ya)(ya)250v以(yi)上。此電(dian)(dian)(dian)路(lu)得當驅動(dong)7-12只20mA的(de)(de)(de)(de)(de)(de)(de)(de)(de)貼(tie)片(pian)LED。