【LED燈(deng)條功率】3528燈(deng)帶、5050燈(deng)帶一米多少瓦 LED燈(deng)條電壓限制

大家都知道正常(chang)(chang)情況的LED燈(deng)帶(dai)(dai)電(dian)(dian)壓(ya)常(chang)(chang)規(gui)規(gui)格(ge)(ge)是12V和24V，12V的LED燈(deng)帶(dai)(dai)是三顆LED為(wei)(wei)(wei)一(yi)組，24V的LED燈(deng)帶(dai)(dai)是6顆LED為(wei)(wei)(wei)一(yi)組。曾(ceng)經有(you)客戶(hu)要求降(jiang)(jiang)低(di)(di)供(gong)電(dian)(dian)電(dian)(dian)壓(ya)，當然不(bu)是所有(you)顏色(se)、規(gui)格(ge)(ge)的都可(ke)以(yi)降(jiang)(jiang)低(di)(di)電(dian)(dian)壓(ya)使(shi)用的，并且也不(bu)是可(ke)以(yi)無條件的降(jiang)(jiang)低(di)(di)。為(wei)(wei)(wei)了更(geng)明白的區分什么樣(yang)規(gui)格(ge)(ge)的LED燈(deng)帶(dai)(dai)電(dian)(dian)壓(ya)可(ke)以(yi)降(jiang)(jiang)低(di)(di)，我們來看看下面5種常(chang)(chang)規(gui)顏色(se)單顆LED的正常(chang)(chang)電(dian)(dian)壓(ya)：

1、紅(hong)色LED：1.8~2.2V

2、藍色LED：3.0~3.2V

3、黃色LED：1.8~2.0V

4、綠(lv)色LED：2.9~3.1V

5、白色LED：3.0~3.3V

市面上的標準直流電源(yuan)電壓規(gui)格有6V、9V、12V、18V、24V等，那么LED燈帶降壓的規(gui)格也必須與這些規(gui)格相符，否(fou)則電源(yuan)的匹配也是一個問題。

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(shi)i(電(dian)(dian)(dian)(dian)(dian)(dian)流(liu)(liu))=U(電(dian)(dian)(dian)(dian)(dian)(dian)壓(ya))/R(電(dian)(dian)(dian)(dian)(dian)(dian)阻)，電(dian)(dian)(dian)(dian)(dian)(dian)壓(ya)相同(tong)時，電(dian)(dian)(dian)(dian)(dian)(dian)阻大則電(dian)(dian)(dian)(dian)(dian)(dian)流(liu)(liu)小，電(dian)(dian)(dian)(dian)(dian)(dian)阻小則電(dian)(dian)(dian)(dian)(dian)(dian)流(liu)(liu)大；電(dian)(dian)(dian)(dian)(dian)(dian)阻相同(tong)時，電(dian)(dian)(dian)(dian)(dian)(dian)壓(ya)大則電(dian)(dian)(dian)(dian)(dian)(dian)流(liu)(liu)大，電(dian)(dian)(dian)(dian)(dian)(dian)壓(ya)小則電(dian)(dian)(dian)(dian)(dian)(dian)流(liu)(liu)小；電(dian)(dian)(dian)(dian)(dian)(dian)流(liu)(liu)相同(tong)時，電(dian)(dian)(dian)(dian)(dian)(dian)阻大則分配的電(dian)(dian)(dian)(dian)(dian)(dian)壓(ya)大

1、白色LED：按最(zui)(zui)低驅(qu)動(dong)(dong)電(dian)壓計算(suan)：3*3.0=9V，如果LED燈帶的(de)(de)供電(dian)電(dian)壓是9V，則沒有辦法再(zai)加限(xian)流電(dian)阻了(le)。如果其(qi)它組LED燈帶有損壞(huai)的(de)(de)話，就會(hui)造成這一組LED燈帶的(de)(de)電(dian)流加大而(er)燒壞(huai)LED。但(dan)是如果加了(le)限(xian)流電(dian)阻，就會(hui)低于LED的(de)(de)最(zui)(zui)低驅(qu)動(dong)(dong)驅(qu)動(dong)(dong)電(dian)壓，會(hui)影響(xiang)LED燈帶的(de)(de)發光強度和發光效果。因此，光虹白色LED燈帶的(de)(de)最(zui)(zui)低電(dian)壓限(xian)制(zhi)為12V。

2、紅色LED：按最低(di)驅動(dong)電(dian)(dian)(dian)(dian)壓(ya)1.8V計算(suan)，3*1.8V=5.4V，則(ze)按常規(gui)電(dian)(dian)(dian)(dian)源電(dian)(dian)(dian)(dian)壓(ya)規(gui)格來看，6V電(dian)(dian)(dian)(dian)壓(ya)就可(ke)(ke)以了。6-5.4V=0.6V，還可(ke)(ke)以加30歐姆的限流電(dian)(dian)(dian)(dian)阻(zu)。故紅色LED燈(deng)帶的最低(di)電(dian)(dian)(dian)(dian)壓(ya)限制(zhi)為6V。

3、藍色LED：與白(bai)色LED燈帶的最低電(dian)壓(ya)限制是(shi)一樣的，是(shi)12V電(dian)壓(ya)。

4、綠(lv)色LED：按(an)最低驅(qu)動電壓(ya)2.9V計算，3*2.9V=8.7V，則按(an)常規電源電壓(ya)規格來看，9V電壓(ya)還(huan)可以。9-8.7V=0.3V，還(huan)可以加15歐姆的限流電阻。故光虹綠(lv)色LED燈帶的最低電壓(ya)限制為(wei)9V。

5、黃(huang)色LED：與光(guang)虹紅(hong)色LED燈帶的最低(di)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(ju)公(gong)式i(電(dian)(dian)(dian)(dian)(dian)(dian)(dian)流)=U(電(dian)(dian)(dian)(dian)(dian)(dian)(dian)壓(ya))/R(電(dian)(dian)(dian)(dian)(dian)(dian)(dian)阻(zu)),電(dian)(dian)(dian)(dian)(dian)(dian)(dian)壓(ya)相(xiang)同時(shi)(shi)，電(dian)(dian)(dian)(dian)(dian)(dian)(dian)阻(zu)大(da)則(ze)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)流小(xiao)，電(dian)(dian)(dian)(dian)(dian)(dian)(dian)阻(zu)小(xiao)則(ze)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)流大(da)；電(dian)(dian)(dian)(dian)(dian)(dian)(dian)阻(zu)相(xiang)同時(shi)(shi)，電(dian)(dian)(dian)(dian)(dian)(dian)(dian)壓(ya)大(da)則(ze)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)流大(da)，電(dian)(dian)(dian)(dian)(dian)(dian)(dian)壓(ya)小(xiao)則(ze)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)流小(xiao)；電(dian)(dian)(dian)(dian)(dian)(dian)(dian)流相(xiang)同時(shi)(shi)，電(dian)(dian)(dian)(dian)(dian)(dian)(dian)阻(zu)大(da)則(ze)分(fen)配的電(dian)(dian)(dian)(dian)(dian)(dian)(dian)壓(ya)大(da)

1、白(bai)色(se)LED：按最(zui)低(di)驅動電(dian)壓(ya)計算：6*3.0=18V，如果光虹(hong)LED燈(deng)(deng)帶的供(gong)電(dian)電(dian)壓(ya)是18V，則沒有(you)辦法再加限流電(dian)阻(zu)了(le)。如果其它組LED燈(deng)(deng)帶有(you)損(sun)壞(huai)(huai)的話，就(jiu)(jiu)會(hui)造成這一組LED燈(deng)(deng)帶的電(dian)流加大而燒壞(huai)(huai)LED。但是如果加了(le)限流電(dian)阻(zu)，就(jiu)(jiu)會(hui)低(di)于LED的最(zui)低(di)驅動驅動電(dian)壓(ya)，會(hui)影(ying)響LED燈(deng)(deng)帶的發(fa)光強度和(he)發(fa)光效果。因此，白(bai)色(se)LED燈(deng)(deng)帶的最(zui)低(di)電(dian)壓(ya)限制為24V。

2、紅色LED：按最低驅(qu)動電壓1.8V計(ji)算，6*1.8V=10.8V，則按常(chang)規電源電壓規格來看，需要(yao)12V電壓。12-10.8V=1.2V，還(huan)可(ke)以加60歐姆(mu)的限流電阻。故紅色LED燈(deng)帶的最低電壓限制(zhi)為12V。

3、藍色(se)LED：與光(guang)虹(hong)白色(se)LED燈帶的最(zui)低電(dian)壓(ya)限制是一(yi)樣(yang)的，是24V電(dian)壓(ya)。

4、綠色(se)(se)LED：按最低驅動(dong)電(dian)(dian)壓(ya)(ya)(ya)2.9V計(ji)算(suan)，6*2.9V=17.4V，則按常規電(dian)(dian)源電(dian)(dian)壓(ya)(ya)(ya)規格(ge)來看，18V電(dian)(dian)壓(ya)(ya)(ya)還(huan)可(ke)以(yi)。18-17.4V=0.6V，還(huan)可(ke)以(yi)加30歐姆的限(xian)流電(dian)(dian)阻。故(gu)綠色(se)(se)LED燈帶的最低電(dian)(dian)壓(ya)(ya)(ya)限(xian)制18V。

5、黃色(se)LED：與(yu)紅色(se)LED燈帶(dai)的最低(di)電壓限制是一(yi)樣，都是12V。

三、LED燈帶功率

功(gong)率(lv)(lv)是(shi)(shi)能量的傳(chuan)輸率(lv)(lv)的度量，在(zai)(zai)直流(liu)電(dian)(dian)路(lu)中(zhong)它是(shi)(shi)電(dian)(dian)壓V和(he)電(dian)(dian)流(liu)A的乘積；在(zai)(zai)交流(liu)系(xi)統里則要復雜(za)的多(duo)了。不(bu)(bu)管是(shi)(shi)高壓還(huan)是(shi)(shi)低(di)壓led燈帶(dai)，它們都是(shi)(shi)將交流(liu)轉化(hua)為直流(liu)來(lai)進行工(gong)作的。 所(suo)以(yi)，led燈帶(dai)功(gong)率(lv)(lv)計算可以(yi)用： P=UI 每個廠家(jia)由(you)于(yu)芯片(pian)不(bu)(bu)一樣(yang)，會導致led燈珠工(gong)作電(dian)(dian)壓和(he)工(gong)作電(dian)(dian)流(liu)不(bu)(bu)一樣(yang)。所(suo)以(yi)，市場上同樣(yang)一米led燈帶(dai)，它們的功(gong)率(lv)(lv)會不(bu)(bu)盡相同。

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>>