【LED燈條(tiao)(tiao)功(gong)率】3528燈帶(dai)、5050燈帶(dai)一米多少瓦 LED燈條(tiao)(tiao)電壓限制

大家都知道正常(chang)情(qing)況(kuang)的(de)LED燈(deng)帶電壓(ya)(ya)常(chang)規(gui)規(gui)格是12V和24V，12V的(de)LED燈(deng)帶是三顆LED為一組(zu)，24V的(de)LED燈(deng)帶是6顆LED為一組(zu)。曾經有客(ke)戶(hu)要求(qiu)降低(di)(di)供電電壓(ya)(ya)，當(dang)然不是所有顏色、規(gui)格的(de)都可以降低(di)(di)電壓(ya)(ya)使用的(de)，并(bing)且也不是可以無條件(jian)的(de)降低(di)(di)。為了更明白(bai)的(de)區分什么(me)樣規(gui)格的(de)LED燈(deng)帶電壓(ya)(ya)可以降低(di)(di)，我(wo)們來看(kan)看(kan)下面5種常(chang)規(gui)顏色單顆LED的(de)正常(chang)電壓(ya)(ya)：

1、紅(hong)色(se)LED：1.8~2.2V

2、藍色(se)LED：3.0~3.2V

3、黃(huang)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(biao)準直(zhi)流電源(yuan)電壓(ya)規(gui)格(ge)有6V、9V、12V、18V、24V等(deng)，那么LED燈(deng)帶降壓(ya)的規(gui)格(ge)也必須與這些(xie)規(gui)格(ge)相(xiang)符，否則電源(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：

根據公式i(電(dian)(dian)(dian)(dian)流(liu)(liu))=U(電(dian)(dian)(dian)(dian)壓)/R(電(dian)(dian)(dian)(dian)阻(zu)(zu))，電(dian)(dian)(dian)(dian)壓相(xiang)同時，電(dian)(dian)(dian)(dian)阻(zu)(zu)大(da)則(ze)電(dian)(dian)(dian)(dian)流(liu)(liu)小(xiao)，電(dian)(dian)(dian)(dian)阻(zu)(zu)小(xiao)則(ze)電(dian)(dian)(dian)(dian)流(liu)(liu)大(da)；電(dian)(dian)(dian)(dian)阻(zu)(zu)相(xiang)同時，電(dian)(dian)(dian)(dian)壓大(da)則(ze)電(dian)(dian)(dian)(dian)流(liu)(liu)大(da)，電(dian)(dian)(dian)(dian)壓小(xiao)則(ze)電(dian)(dian)(dian)(dian)流(liu)(liu)小(xiao)；電(dian)(dian)(dian)(dian)流(liu)(liu)相(xiang)同時，電(dian)(dian)(dian)(dian)阻(zu)(zu)大(da)則(ze)分(fen)配的電(dian)(dian)(dian)(dian)壓大(da)

1、白色(se)LED：按最(zui)低(di)驅動(dong)電(dian)(dian)壓(ya)(ya)計算：3*3.0=9V，如(ru)果LED燈(deng)帶(dai)(dai)的供電(dian)(dian)電(dian)(dian)壓(ya)(ya)是(shi)9V，則(ze)沒(mei)有(you)辦(ban)法再(zai)加(jia)限(xian)流(liu)電(dian)(dian)阻了(le)。如(ru)果其它組(zu)(zu)LED燈(deng)帶(dai)(dai)有(you)損壞的話(hua)，就(jiu)會造成這一(yi)組(zu)(zu)LED燈(deng)帶(dai)(dai)的電(dian)(dian)流(liu)加(jia)大而燒壞LED。但(dan)是(shi)如(ru)果加(jia)了(le)限(xian)流(liu)電(dian)(dian)阻，就(jiu)會低(di)于LED的最(zui)低(di)驅動(dong)驅動(dong)電(dian)(dian)壓(ya)(ya)，會影響LED燈(deng)帶(dai)(dai)的發光(guang)強度(du)和發光(guang)效果。因(yin)此，光(guang)虹白色(se)LED燈(deng)帶(dai)(dai)的最(zui)低(di)電(dian)(dian)壓(ya)(ya)限(xian)制為12V。

2、紅色LED：按最低驅動(dong)電(dian)(dian)(dian)壓(ya)(ya)1.8V計(ji)算，3*1.8V=5.4V，則按常規(gui)(gui)電(dian)(dian)(dian)源(yuan)電(dian)(dian)(dian)壓(ya)(ya)規(gui)(gui)格來看，6V電(dian)(dian)(dian)壓(ya)(ya)就可以(yi)了。6-5.4V=0.6V，還可以(yi)加30歐姆的限(xian)流電(dian)(dian)(dian)阻。故紅色LED燈帶的最低電(dian)(dian)(dian)壓(ya)(ya)限(xian)制為6V。

3、藍色LED：與(yu)白(bai)色LED燈帶的最低電壓(ya)限制是一(yi)樣的，是12V電壓(ya)。

4、綠色LED：按最低(di)驅動電(dian)壓2.9V計算，3*2.9V=8.7V，則按常規電(dian)源電(dian)壓規格來看，9V電(dian)壓還(huan)可以。9-8.7V=0.3V，還(huan)可以加15歐姆(mu)的(de)限流(liu)電(dian)阻。故光虹綠色LED燈(deng)帶的(de)最低(di)電(dian)壓限制為9V。

5、黃色(se)LED：與光虹紅色(se)LED燈帶(dai)的最低電壓限制是(shi)一樣，都(dou)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：

根據(ju)公(gong)式i(電(dian)(dian)流(liu)(liu))=U(電(dian)(dian)壓(ya))/R(電(dian)(dian)阻(zu)),電(dian)(dian)壓(ya)相同(tong)時(shi)，電(dian)(dian)阻(zu)大則電(dian)(dian)流(liu)(liu)小，電(dian)(dian)阻(zu)小則電(dian)(dian)流(liu)(liu)大；電(dian)(dian)阻(zu)相同(tong)時(shi)，電(dian)(dian)壓(ya)大則電(dian)(dian)流(liu)(liu)大，電(dian)(dian)壓(ya)小則電(dian)(dian)流(liu)(liu)小；電(dian)(dian)流(liu)(liu)相同(tong)時(shi)，電(dian)(dian)阻(zu)大則分配的電(dian)(dian)壓(ya)大

1、白色(se)(se)LED：按最低(di)驅(qu)動電(dian)(dian)(dian)(dian)壓計(ji)算：6*3.0=18V，如果(guo)(guo)(guo)光虹LED燈(deng)(deng)帶的(de)供電(dian)(dian)(dian)(dian)電(dian)(dian)(dian)(dian)壓是18V，則沒有辦(ban)法再加限(xian)(xian)流(liu)電(dian)(dian)(dian)(dian)阻了。如果(guo)(guo)(guo)其它組LED燈(deng)(deng)帶有損(sun)壞的(de)話，就(jiu)會造成(cheng)這一組LED燈(deng)(deng)帶的(de)電(dian)(dian)(dian)(dian)流(liu)加大而燒壞LED。但是如果(guo)(guo)(guo)加了限(xian)(xian)流(liu)電(dian)(dian)(dian)(dian)阻，就(jiu)會低(di)于LED的(de)最低(di)驅(qu)動驅(qu)動電(dian)(dian)(dian)(dian)壓，會影響(xiang)LED燈(deng)(deng)帶的(de)發(fa)光強度(du)和發(fa)光效(xiao)果(guo)(guo)(guo)。因此(ci)，白色(se)(se)LED燈(deng)(deng)帶的(de)最低(di)電(dian)(dian)(dian)(dian)壓限(xian)(xian)制為24V。

2、紅色LED：按最低驅動電(dian)壓(ya)(ya)1.8V計算，6*1.8V=10.8V，則按常規電(dian)源電(dian)壓(ya)(ya)規格來看，需要12V電(dian)壓(ya)(ya)。12-10.8V=1.2V，還可以加(jia)60歐(ou)姆的限流(liu)電(dian)阻。故紅色LED燈(deng)帶的最低電(dian)壓(ya)(ya)限制為12V。

3、藍(lan)色LED：與光虹白色LED燈帶(dai)的最低(di)電壓(ya)限制是一樣(yang)的，是24V電壓(ya)。

4、綠色(se)LED：按最(zui)(zui)低驅(qu)動電壓(ya)(ya)2.9V計算，6*2.9V=17.4V，則按常規(gui)電源電壓(ya)(ya)規(gui)格(ge)來看，18V電壓(ya)(ya)還可(ke)以。18-17.4V=0.6V，還可(ke)以加30歐(ou)姆的限流電阻。故綠色(se)LED燈帶的最(zui)(zui)低電壓(ya)(ya)限制18V。

5、黃色LED：與(yu)紅色LED燈帶(dai)的(de)最(zui)低電壓限制是一樣，都(dou)是12V。

三、LED燈帶功率

功率是(shi)(shi)能(neng)量(liang)的(de)(de)傳輸率的(de)(de)度量(liang)，在(zai)直流(liu)(liu)(liu)電(dian)路(lu)中(zhong)它是(shi)(shi)電(dian)壓V和(he)電(dian)流(liu)(liu)(liu)A的(de)(de)乘積；在(zai)交流(liu)(liu)(liu)系統里則(ze)要(yao)復雜的(de)(de)多了(le)。不管是(shi)(shi)高壓還是(shi)(shi)低壓led燈帶，它們(men)都是(shi)(shi)將(jiang)交流(liu)(liu)(liu)轉(zhuan)化為(wei)直流(liu)(liu)(liu)來進行工(gong)作(zuo)的(de)(de)。 所(suo)(suo)以，led燈帶功率計算(suan)可(ke)以用(yong)： P=UI 每個廠家由于(yu)芯片(pian)不一(yi)樣(yang)(yang)，會導(dao)致led燈珠工(gong)作(zuo)電(dian)壓和(he)工(gong)作(zuo)電(dian)流(liu)(liu)(liu)不一(yi)樣(yang)(yang)。所(suo)(suo)以，市(shi)場上同樣(yang)(yang)一(yi)米(mi)led燈帶，它們(men)的(de)(de)功率會不盡相同。

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>>