大家好我(wo)是天成(cheng)照明(ming)LED燈(deng)(deng)珠廠(chang)家小編(bian)燈(deng)(deng)漂亮今(jin)天我(wo)們來(lai)介紹LED燈(deng)(deng)珠BIN電阻(zu) led燈(deng)(deng)珠阻(zu)值(zhi)大概多少的問(wen)題，以下(xia)就是燈(deng)(deng)漂亮對(dui)此問(wen)題和(he)相關(guan)問(wen)題的歸納整理,一(yi)起來(lai)看(kan)看(kan)吧。

文章目錄導航:

• 1、LED燈珠阻值
• 2、led燈珠電阻多少
• 3、燈珠加電阻怎么調節
• 4、led燈珠壞了用多大的電阻代替
• 5、led燈珠壞了用多大電阻代替

LED燈珠阻值

一、2V左右點亮的LED燈(如紅、黃(huang)、橙等)：12V：470歐車上12V：680歐

二(er)：3V左右點(dian)亮的LED燈(deng)(如(ru)藍、綠、白等)：12V：390歐車上12V：470歐電(dian)(dian)(dian)(dian)阻的參數(shu)一(yi)般有兩個，阻值R和功率(lv)P。R=（U-Uled）/Iled，USB的標準電(dian)(dian)(dian)(dian)壓是DC5V的，所(suo)以R=（5-Uled）/IledUled，燈(deng)珠的正向(xiang)導通電(dian)(dian)(dian)(dian)壓。Iled，燈(deng)珠的正向(xiang)導通電(dian)(dian)(dian)(dian)流。

現在LED有很(hen)多種類，顏色不(bu)同(tong)(tong)，一般電(dian)(dian)(dian)流也(ye)不(bu)同(tong)(tong)。電(dian)(dian)(dian)阻大(da)(da)小影(ying)響(xiang)(xiang)電(dian)(dian)(dian)流大(da)(da)小，進而影(ying)響(xiang)(xiang)燈(deng)珠的(de)亮度(du)，但只(zhi)要(yao)不(bu)超過正向最大(da)(da)電(dian)(dian)(dian)流，都可以使(shi)用，只(zhi)是亮度(du)或有不(bu)同(tong)(tong)，所以選擇(ze)范(fan)圍比較大(da)(da)。

led燈珠電阻多少

小(xiao)功率紅黃的(de),它的(de)電阻=電壓/電流=1.8/0.02=90Ω

小(xiao)功(gong)率藍(lan)綠的(de),它的(de)電(dian)阻(zu)=電(dian)壓/電(dian)流(liu)=3.2/0.02=160Ω

大(da)功率紅黃的,它的電阻=電壓/電流(liu)=2.2/0.35=6Ω

大功率藍綠的,它的電(dian)阻(zu)=電(dian)壓/電(dian)流=3.4/0.35=10Ω

電阻(zu)(zu)是(shi)一個物理量，在物理學中表示導體(ti)對電流阻(zu)(zu)礙(ai)作用的大小，它的英(ying)文(wen)名稱為(wei)resistance，通常縮寫(xie)為(wei)R。

它(ta)是導(dao)體(ti)(ti)的一(yi)種(zhong)基(ji)本性質，與(yu)導(dao)體(ti)(ti)的尺寸、材料、溫(wen)度有關(guan)。導(dao)體(ti)(ti)的電(dian)阻越(yue)大，表示導(dao)體(ti)(ti)對(dui)電(dian)流(liu)的阻礙作用(yong)越(yue)大。不同(tong)的導(dao)體(ti)(ti)，電(dian)阻一(yi)般不同(tong)。

燈珠加電阻怎么調節

Led燈(deng)(deng)珠(zhu)線路上(shang)(shang)串加(jia)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)阻(zu)(zu)(zu)，一般是為(wei)了限流(liu)，在預設的工作電(dian)(dian)(dian)(dian)(dian)(dian)(dian)流(liu)值出(chu)發(fa)去(qu)按供電(dian)(dian)(dian)(dian)(dian)(dian)(dian)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)壓(ya)(ya)去(qu)算出(chu)需要(yao)加(jia)的電(dian)(dian)(dian)(dian)(dian)(dian)(dian)阻(zu)(zu)(zu)值，同(tong)時加(jia)裝的電(dian)(dian)(dian)(dian)(dian)(dian)(dian)阻(zu)(zu)(zu)上(shang)(shang)也(ye)有相應(ying)壓(ya)(ya)降(jiang)(jiang)。比如燈(deng)(deng)珠(zhu)工作電(dian)(dian)(dian)(dian)(dian)(dian)(dian)流(liu)設置為(wei)10mA，所需電(dian)(dian)(dian)(dian)(dian)(dian)(dian)壓(ya)(ya)為(wei)3V，現(xian)有電(dian)(dian)(dian)(dian)(dian)(dian)(dian)壓(ya)(ya)為(wei)5Ⅴ，顯(xian)然(ran)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)壓(ya)(ya)高出(chu)2V，用2V÷10mA=2÷0.01=200歐姆，電(dian)(dian)(dian)(dian)(dian)(dian)(dian)阻(zu)(zu)(zu)上(shang)(shang)壓(ya)(ya)降(jiang)(jiang)為(wei)2V，燈(deng)(deng)珠(zhu)上(shang)(shang)為(wei)3V，電(dian)(dian)(dian)(dian)(dian)(dian)(dian)流(liu)為(wei)10mA。如果(guo)不(bu)清楚燈(deng)(deng)珠(zhu)具體參數(shu)，也(ye)可先串一個電(dian)(dian)(dian)(dian)(dian)(dian)(dian)位器(可變電(dian)(dian)(dian)(dian)(dian)(dian)(dian)阻(zu)(zu)(zu))，從大阻(zu)(zu)(zu)值向下調節，直到燈(deng)(deng)珠(zhu)點亮和亮度適中時，測一下電(dian)(dian)(dian)(dian)(dian)(dian)(dian)位器實(shi)用的電(dian)(dian)(dian)(dian)(dian)(dian)(dian)阻(zu)(zu)(zu)值換(huan)上(shang)(shang)固定電(dian)(dian)(dian)(dian)(dian)(dian)(dian)阻(zu)(zu)(zu)即可。

led燈珠壞了用多大的電阻代替

180歐姆。

這種燈珠壞了，如果你手(shou)頭沒(mei)有(you)LED燈珠，可以用(yong)150-180Ω左右的電(dian)阻代替，若是恒流源(yuan)驅動可以直接短接原燈珠線路兩端即可。

當然，如果拆開里面沒有燒壞的(de)痕(hen)跡(ji)，則找同(tong)類(lei)的(de)電(dian)源先更換試試。不同(tong)的(de)現(xian)象，不同(tong)的(de)處理方法(fa)。要(yao)首先知(zhi)道(dao)，是電(dian)源驅動(dong)電(dian)路的(de)問題，還(huan)是燈珠(zhu)本身的(de)問題。

led燈珠壞了用多大電阻代替

LED燈(deng)珠壞了可以用電(dian)阻(zu)代替。電(dian)阻(zu)值R=U/I。式中，U為燈(deng)珠的正常工作電(dian)壓，I為燈(deng)珠正常發(fa)光時的電(dian)流。

以上就是天成小編對于LED燈(deng)珠(zhu)BIN電(dian)阻 led燈(deng)珠(zhu)阻值(zhi)大(da)概多少(shao)問題(ti)和(he)相關(guan)問題(ti)的解答了，希望對你(ni)有(you)用(yong) 【責任編輯：燈(deng)漂亮】