【LED燈條(tiao)功率(lv)】3528燈帶(dai)、5050燈帶(dai)一米(mi)多少瓦 LED燈條(tiao)電(dian)壓(ya)限制

大家都(dou)知(zhi)道(dao)正(zheng)常(chang)情況的(de)(de)LED燈(deng)帶(dai)(dai)電(dian)(dian)壓(ya)常(chang)規規格(ge)(ge)是(shi)(shi)12V和24V，12V的(de)(de)LED燈(deng)帶(dai)(dai)是(shi)(shi)三顆LED為一組，24V的(de)(de)LED燈(deng)帶(dai)(dai)是(shi)(shi)6顆LED為一組。曾(ceng)經有(you)客戶要求降(jiang)低供電(dian)(dian)電(dian)(dian)壓(ya)，當(dang)然不是(shi)(shi)所有(you)顏色、規格(ge)(ge)的(de)(de)都(dou)可(ke)以降(jiang)低電(dian)(dian)壓(ya)使用的(de)(de)，并且也不是(shi)(shi)可(ke)以無(wu)條(tiao)件的(de)(de)降(jiang)低。為了更明白的(de)(de)區分什么樣規格(ge)(ge)的(de)(de)LED燈(deng)帶(dai)(dai)電(dian)(dian)壓(ya)可(ke)以降(jiang)低，我(wo)們來看(kan)看(kan)下(xia)面(mian)5種(zhong)常(chang)規顏色單顆LED的(de)(de)正(zheng)常(chang)電(dian)(dian)壓(ya)：

1、紅色LED：1.8~2.2V

2、藍色(se)LED：3.0~3.2V

3、黃色(se)LED：1.8~2.0V

4、綠色LED：2.9~3.1V

5、白色LED：3.0~3.3V

市面上的(de)標準直(zhi)流電源電壓(ya)規格(ge)有6V、9V、12V、18V、24V等，那(nei)么(me)LED燈帶降壓(ya)的(de)規格(ge)也必須與這些規格(ge)相符，否則電源的(de)匹配也是一個問(wen)題。

一、下面就以這幾種常規顏色的LED為例來說明3顆LED為一組的LED燈帶的最低電壓限制：

根(gen)據公式i(電(dian)(dian)(dian)(dian)流(liu))=U(電(dian)(dian)(dian)(dian)壓(ya))/R(電(dian)(dian)(dian)(dian)阻(zu)(zu))，電(dian)(dian)(dian)(dian)壓(ya)相(xiang)同時(shi)，電(dian)(dian)(dian)(dian)阻(zu)(zu)大(da)(da)則(ze)電(dian)(dian)(dian)(dian)流(liu)小(xiao)，電(dian)(dian)(dian)(dian)阻(zu)(zu)小(xiao)則(ze)電(dian)(dian)(dian)(dian)流(liu)大(da)(da)；電(dian)(dian)(dian)(dian)阻(zu)(zu)相(xiang)同時(shi)，電(dian)(dian)(dian)(dian)壓(ya)大(da)(da)則(ze)電(dian)(dian)(dian)(dian)流(liu)大(da)(da)，電(dian)(dian)(dian)(dian)壓(ya)小(xiao)則(ze)電(dian)(dian)(dian)(dian)流(liu)小(xiao)；電(dian)(dian)(dian)(dian)流(liu)相(xiang)同時(shi)，電(dian)(dian)(dian)(dian)阻(zu)(zu)大(da)(da)則(ze)分(fen)配的電(dian)(dian)(dian)(dian)壓(ya)大(da)(da)

1、白(bai)色(se)LED：按最(zui)低(di)驅動(dong)電(dian)(dian)(dian)壓計算：3*3.0=9V，如果(guo)LED燈帶(dai)(dai)的供(gong)電(dian)(dian)(dian)電(dian)(dian)(dian)壓是(shi)9V，則沒有(you)(you)辦法再加限(xian)流(liu)電(dian)(dian)(dian)阻(zu)(zu)了。如果(guo)其它組(zu)LED燈帶(dai)(dai)有(you)(you)損壞的話(hua)，就會造成這一(yi)組(zu)LED燈帶(dai)(dai)的電(dian)(dian)(dian)流(liu)加大而燒壞LED。但是(shi)如果(guo)加了限(xian)流(liu)電(dian)(dian)(dian)阻(zu)(zu)，就會低(di)于LED的最(zui)低(di)驅動(dong)驅動(dong)電(dian)(dian)(dian)壓，會影(ying)響LED燈帶(dai)(dai)的發光(guang)強度(du)和發光(guang)效果(guo)。因此(ci)，光(guang)虹白(bai)色(se)LED燈帶(dai)(dai)的最(zui)低(di)電(dian)(dian)(dian)壓限(xian)制(zhi)為12V。

2、紅色LED：按最低驅動電壓(ya)(ya)1.8V計算(suan)，3*1.8V=5.4V，則(ze)按常(chang)規(gui)電源電壓(ya)(ya)規(gui)格來看，6V電壓(ya)(ya)就可以(yi)了。6-5.4V=0.6V，還可以(yi)加30歐(ou)姆的限(xian)流電阻。故紅色LED燈帶的最低電壓(ya)(ya)限(xian)制(zhi)為(wei)6V。

3、藍色(se)(se)LED：與白色(se)(se)LED燈帶的最低(di)電(dian)(dian)壓限(xian)制是(shi)一樣的，是(shi)12V電(dian)(dian)壓。

4、綠(lv)(lv)色LED：按(an)最(zui)低驅動電壓(ya)2.9V計(ji)算，3*2.9V=8.7V，則按(an)常規(gui)(gui)電源(yuan)電壓(ya)規(gui)(gui)格(ge)來看，9V電壓(ya)還可以。9-8.7V=0.3V，還可以加15歐(ou)姆的(de)(de)限流電阻。故光(guang)虹(hong)綠(lv)(lv)色LED燈帶(dai)的(de)(de)最(zui)低電壓(ya)限制為(wei)9V。

5、黃色(se)LED：與光虹紅色(se)LED燈帶的最低電壓限制是(shi)一樣，都是(shi)6V。

LED燈帶什么顏色好>>

二、6顆LED為一組的LED燈帶的最低電壓限制：

根(gen)據公式i(電(dian)(dian)(dian)流)=U(電(dian)(dian)(dian)壓)/R(電(dian)(dian)(dian)阻(zu)),電(dian)(dian)(dian)壓相(xiang)同時(shi)(shi)，電(dian)(dian)(dian)阻(zu)大(da)(da)則(ze)(ze)(ze)電(dian)(dian)(dian)流小，電(dian)(dian)(dian)阻(zu)小則(ze)(ze)(ze)電(dian)(dian)(dian)流大(da)(da)；電(dian)(dian)(dian)阻(zu)相(xiang)同時(shi)(shi)，電(dian)(dian)(dian)壓大(da)(da)則(ze)(ze)(ze)電(dian)(dian)(dian)流大(da)(da)，電(dian)(dian)(dian)壓小則(ze)(ze)(ze)電(dian)(dian)(dian)流小；電(dian)(dian)(dian)流相(xiang)同時(shi)(shi)，電(dian)(dian)(dian)阻(zu)大(da)(da)則(ze)(ze)(ze)分配的電(dian)(dian)(dian)壓大(da)(da)

1、白(bai)色(se)LED：按(an)最(zui)低(di)驅(qu)動(dong)(dong)電(dian)壓(ya)計算：6*3.0=18V，如(ru)果(guo)(guo)光虹(hong)LED燈(deng)(deng)帶(dai)的供電(dian)電(dian)壓(ya)是(shi)18V，則沒有辦法再加(jia)限(xian)流(liu)電(dian)阻了。如(ru)果(guo)(guo)其它組(zu)LED燈(deng)(deng)帶(dai)有損壞的話，就會(hui)造(zao)成這(zhe)一組(zu)LED燈(deng)(deng)帶(dai)的電(dian)流(liu)加(jia)大而燒壞LED。但是(shi)如(ru)果(guo)(guo)加(jia)了限(xian)流(liu)電(dian)阻，就會(hui)低(di)于LED的最(zui)低(di)驅(qu)動(dong)(dong)驅(qu)動(dong)(dong)電(dian)壓(ya)，會(hui)影響LED燈(deng)(deng)帶(dai)的發光強度和發光效果(guo)(guo)。因此，白(bai)色(se)LED燈(deng)(deng)帶(dai)的最(zui)低(di)電(dian)壓(ya)限(xian)制為24V。

2、紅(hong)色LED：按(an)最低(di)驅動電(dian)壓1.8V計算，6*1.8V=10.8V，則(ze)按(an)常規電(dian)源電(dian)壓規格來看，需要12V電(dian)壓。12-10.8V=1.2V，還可以加60歐姆的限流電(dian)阻。故紅(hong)色LED燈(deng)帶的最低(di)電(dian)壓限制(zhi)為12V。

3、藍色LED：與光(guang)虹白(bai)色LED燈帶的最低(di)電壓(ya)限制是一(yi)樣的，是24V電壓(ya)。

4、綠(lv)色(se)(se)LED：按最(zui)低(di)驅動電(dian)壓2.9V計(ji)算，6*2.9V=17.4V，則按常規(gui)(gui)電(dian)源電(dian)壓規(gui)(gui)格來看(kan)，18V電(dian)壓還可以。18-17.4V=0.6V，還可以加30歐姆的限(xian)流(liu)電(dian)阻。故(gu)綠(lv)色(se)(se)LED燈帶的最(zui)低(di)電(dian)壓限(xian)制(zhi)18V。

5、黃色(se)LED：與紅(hong)色(se)LED燈(deng)帶的最低電壓限制是(shi)一樣，都是(shi)12V。

三、LED燈帶功率

功(gong)(gong)率(lv)是(shi)(shi)能量的(de)傳輸(shu)率(lv)的(de)度量，在(zai)直流(liu)電(dian)(dian)路中它是(shi)(shi)電(dian)(dian)壓V和(he)電(dian)(dian)流(liu)A的(de)乘積；在(zai)交(jiao)流(liu)系統(tong)里則要復雜的(de)多了。不管是(shi)(shi)高壓還是(shi)(shi)低壓led燈(deng)帶，它們都是(shi)(shi)將交(jiao)流(liu)轉化為直流(liu)來進(jin)行工作的(de)。 所(suo)以，led燈(deng)帶功(gong)(gong)率(lv)計算可以用： P=UI 每(mei)個廠家由于(yu)芯片不一樣，會導(dao)致led燈(deng)珠(zhu)工作電(dian)(dian)壓和(he)工作電(dian)(dian)流(liu)不一樣。所(suo)以，市場上同(tong)樣一米(mi)led燈(deng)帶，它們的(de)功(gong)(gong)率(lv)會不盡(jin)相同(tong)。

3528燈帶一米多少瓦 5050燈帶一米多少瓦

LED燈帶12V一米的有多種功率，常見的5w到20w之間，例如： 3528led，每米30顆led，每米功率2.4w；每米60顆led，每米4.8w。 5050led ，每米30顆led，每米7.2w；每米60顆led ，每米14.4w。

LED燈帶安裝圖解>>