大家好我是小編(bian)榮姐(jie)今天我們來介紹(shao)led燈(deng)老燒燈(deng)珠 led燈(deng)珠為什么總(zong)是燒的問題，以下就(jiu)是榮姐(jie)對此問題和相關問題的歸納整理,一起(qi)來看(kan)看(kan)吧。

文章目錄導航:

• 1、led燈珠經常燒是怎么回事
• 2、led燈珠總是燒是什么原因
• 3、客廳的LED燈珠經常被燒壞該怎么修理電路需串聯一個多大的電阻
• 4、為什么LED燈珠老是燒
• 5、修好的led燈為什么經常燒燈珠

led燈珠經常燒是怎么回事

可(ke)能是驅動(dong)電源不(bu)好(hao),電流(liu)較大,LED燈珠散熱不(bu)好(hao),廠家為了降低成(cheng)本,采用(yong)質量差(cha)得燈珠,所以(yi)經常會燒壞。

led燈珠總是燒是什么原因

led燈(deng)珠接(jie)在車上老是燒(shao)，是因為(wei)電(dian)壓(ya)高了(le)，LED的工作電(dian)壓(ya)為(wei)3V左右。應給(gei)LED燈(deng)珠串接(jie)一個適當的電(dian)阻進行降(jiang)壓(ya)，選(xuan)擇(ze)大(da)多的電(dian)阻，需要根據電(dian)壓(ya)及LED燈(deng)珠的個數來(lai)定(ding)。

LED：發光二極管簡稱為LED。由含(han)鎵（Ga）、砷(shen)（As）、磷（P）、氮（N）等的(de)化(hua)合物制成。

當電(dian)子與空穴復合時能輻射出(chu)可見光(guang)(guang)，因而可以用(yong)來制(zhi)成發(fa)光(guang)(guang)二極(ji)(ji)管(guan)。在電(dian)路及(ji)儀器(qi)中作為指示燈，或者組成文字(zi)或數字(zi)顯示。砷化(hua)(hua)鎵(jia)二極(ji)(ji)管(guan)發(fa)紅光(guang)(guang)，磷(lin)化(hua)(hua)鎵(jia)二極(ji)(ji)管(guan)發(fa)綠光(guang)(guang)，碳化(hua)(hua)硅二極(ji)(ji)管(guan)發(fa)黃(huang)光(guang)(guang)，氮(dan)化(hua)(hua)鎵(jia)二極(ji)(ji)管(guan)發(fa)藍光(guang)(guang)。因化(hua)(hua)學性質(zhi)又分有機(ji)發(fa)光(guang)(guang)二極(ji)(ji)管(guan)OLED和無機(ji)發(fa)光(guang)(guang)二極(ji)(ji)管(guan)LED。

客廳的LED燈珠經常被燒壞該怎么修理電路需串聯一個多大的電阻

客(ke)廳里的LED燈的燈珠(zhu)經常被燒壞，出現(xian)這(zhe)種(zhong)情(qing)況一般(ban)是(shi)LED燈珠(zhu)的驅動電(dian)流偏(pian)大，再加上燈珠(zhu)可(ke)能散(san)熱(re)不好，這(zhe)樣便會(hui)導致燈珠(zhu)燒壞。 簡單的阻容降(jiang)壓恒流驅動電(dian)路。

現在的(de)(de)LED燈(deng)(deng)質(zhi)量(liang)好(hao)的(de)(de)其(qi)恒流(liu)驅(qu)動(dong)器一般(ban)都(dou)采(cai)用專用的(de)(de)恒流(liu)驅(qu)動(dong)IC設計(ji)，驅(qu)動(dong)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)流(liu)比較穩定，一般(ban)不(bu)容(rong)易損壞(huai)，而一些廉(lian)價的(de)(de)LED燈(deng)(deng)有不(bu)少都(dou)是采(cai)用上圖(tu)所示的(de)(de)簡單(dan)的(de)(de)阻容(rong)降壓恒流(liu)驅(qu)動(dong)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)路。這種驅(qu)動(dong)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)路的(de)(de)驅(qu)動(dong)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)流(liu)不(bu)太穩定，其(qi)大小(xiao)與電(dian)(dian)(dian)(dian)(dian)(dian)(dian)容(rong)C1的(de)(de)容(rong)量(liang)、市電(dian)(dian)(dian)(dian)(dian)(dian)(dian)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)壓的(de)(de)高低有關。若遇到市電(dian)(dian)(dian)(dian)(dian)(dian)(dian)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)壓偏高，或C1取值偏大，這樣便會(hui)導(dao)致流(liu)過燈(deng)(deng)珠(zhu)的(de)(de)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)流(liu)變大，而LED燈(deng)(deng)珠(zhu)在燈(deng)(deng)罩內(nei)，若燈(deng)(deng)珠(zhu)的(de)(de)散(san)熱不(bu)好(hao)，工(gong)作(zuo)時間(jian)一長(chang)便可(ke)能會(hui)被燒(shao)壞(huai)。 簡單(dan)的(de)(de)LED恒流(liu)驅(qu)動(dong)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)路板。

出現這種情況，我(wo)們可(ke)以(yi)(yi)用萬用表(biao)測量一下市電(dian)(dian)(dian)(dian)(dian)電(dian)(dian)(dian)(dian)(dian)壓是(shi)否偏(pian)高(gao)，降壓電(dian)(dian)(dian)(dian)(dian)容(rong)的(de)(de)(de)容(rong)量與燈珠(zhu)的(de)(de)(de)工作電(dian)(dian)(dian)(dian)(dian)流(liu)是(shi)否匹配。若所(suo)在地區的(de)(de)(de)市電(dian)(dian)(dian)(dian)(dian)電(dian)(dian)(dian)(dian)(dian)壓經常偏(pian)高(gao)，可(ke)以(yi)(yi)將電(dian)(dian)(dian)(dian)(dian)容(rong)C1的(de)(de)(de)容(rong)量適(shi)(shi)(shi)當減小(xiao)一些。為了防止(zhi)開燈瞬間浪涌電(dian)(dian)(dian)(dian)(dian)流(liu)損壞燈珠(zhu)，亦可(ke)以(yi)(yi)適(shi)(shi)(shi)當增大電(dian)(dian)(dian)(dian)(dian)容(rong)C2的(de)(de)(de)容(rong)量。另外，若C1找(zhao)不到合適(shi)(shi)(shi)容(rong)量的(de)(de)(de)電(dian)(dian)(dian)(dian)(dian)容(rong)，亦可(ke)以(yi)(yi)在C2兩(liang)端并(bing)聯一個阻值(zhi)及功率合適(shi)(shi)(shi)的(de)(de)(de)電(dian)(dian)(dian)(dian)(dian)阻（具體阻值(zhi)視實際(ji)情況而(er)定(ding)），這樣可(ke)以(yi)(yi)對流(liu)入LED燈珠(zhu)的(de)(de)(de)電(dian)(dian)(dian)(dian)(dian)流(liu)進(jin)行分流(liu)，從而(er)減小(xiao)燈珠(zhu)的(de)(de)(de)工作電(dian)(dian)(dian)(dian)(dian)流(liu)，降低(di)其(qi)發(fa)熱量。

若(ruo)想了(le)解更多(duo)的(de)電(dian)子電(dian)路及元器(qi)件知(zhi)識，

為什么LED燈珠老是燒

這(zhe)樣的(de)問題是容抗限流型LED燈的(de)常見問題。一般說不好(hao)解決，可(ke)換(huan)用不同廠家(jia)的(de)產(chan)品試(shi)試(shi)，最好(hao)多花點錢，買恒流電源的(de)LED燈泡。

修好的led燈為什么經常燒燈珠

首先需(xu)要檢(jian)查一(yi)下近(jin)光(guang)繼電(dian)器(qi)是(shi)否(fou)正常(chang)，直接(jie)用(yong)萬用(yong)表測(ce)閃光(guang)繼電(dian)器(qi)的(de)輸(shu)出(chu)(chu)線，看(kan)看(kan)是(shi)否(fou)有(you)12v輸(shu)出(chu)(chu)，如果有(you)斷續(xu)的(de)輸(shu)出(chu)(chu)變化就說明(ming)是(shi)正常(chang)的(de)，如果沒有(you)輸(shu)出(chu)(chu)或者一(yi)直都(dou)是(shi)12v輸(shu)出(chu)(chu)的(de)話，就說明(ming)近(jin)光(guang)繼電(dian)器(qi)已經出(chu)(chu)現(xian)損壞(huai)了，需(xu)要更換(huan)一(yi)個新的(de)上去(qu)。

近(jin)(jin)光(guang)(guang)繼電(dian)器的(de)(de)作用是(shi)增(zeng)強近(jin)(jin)光(guang)(guang)燈的(de)(de)輸出電(dian)流，使近(jin)(jin)光(guang)(guang)燈的(de)(de)光(guang)(guang)度(du)隨之變亮，一旦近(jin)(jin)光(guang)(guang)繼電(dian)器出現異(yi)常的(de)(de)話，就(jiu)會導致近(jin)(jin)光(guang)(guang)燈的(de)(de)輸出電(dian)流過強，以致于出現led燈老是(shi)燒的(de)(de)現象。

以(yi)上就(jiu)是天成小編對(dui)于led燈(deng)老燒燈(deng)珠(zhu) led燈(deng)珠(zhu)為什么總是燒問(wen)題和相關問(wen)題的(de)解(jie)答(da)了，希望對(dui)你有用(yong) 【責任編輯：榮姐(jie)】