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使用白光led燈珠為什么不能超電壓或超電流

不(bu)論(lun)是(shi)移動電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)源(yuan)（標稱5V）還是(shi)鋰電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)池（標稱3.7V），都可以作(zuo)為led電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)源(yuan)。由于電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)源(yuan)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)壓(ya)(ya)(ya)(ya)(ya)(ya)小(xiao)于led燈(deng)珠(zhu)(zhu)工(gong)(gong)作(zuo)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)壓(ya)(ya)(ya)(ya)(ya)(ya)的(de)(de)2倍，要想(xiang)led燈(deng)珠(zhu)(zhu)正(zheng)常(chang)發光(guang)，只能并(bing)聯(lian)(lian)使用。直接(jie)(jie)接(jie)(jie)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)源(yuan)，存在(zai)(zai)超壓(ya)(ya)(ya)(ya)(ya)(ya)導致的(de)(de)超流(liu)，加速光(guang)衰(shuai)甚至(zhi)燒(shao)毀（一(yi)會不(bu)久就出(chu)現(xian)一(yi)兩(liang)個(ge)LED在(zai)(zai)不(bu)斷的(de)(de)閃爍，LED摸(mo)上去挺(ting)熱的(de)(de)---就是(shi)例證。閃爍表明已經損壞）。要讓led工(gong)(gong)作(zuo)在(zai)(zai)正(zheng)常(chang)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)壓(ya)(ya)(ya)(ya)(ya)(ya)下(xia)（相當于間接(jie)(jie)維持合適工(gong)(gong)作(zuo)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)流(liu)），必須把(ba)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)源(yuan)比led多出(chu)的(de)(de)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)壓(ya)(ya)(ya)(ya)(ya)(ya)加以分壓(ya)(ya)(ya)(ya)(ya)(ya)，最簡單(dan)的(de)(de)就是(shi)根(gen)據物理學原理，串聯(lian)(lian)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)阻(zu)分壓(ya)(ya)(ya)(ya)(ya)(ya)的(de)(de)方法。理論(lun)計算方法如(ru)下(xia)每個(ge)支路(lu)的(de)(de)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)阻(zu)阻(zu)值(zhi)（Ω）＝（電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)源(yuan)輸(shu)(shu)出(chu)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)壓(ya)(ya)(ya)(ya)(ya)(ya)－3V）÷0.02；電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)阻(zu)功(gong)率（W）＞（電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)源(yuan)輸(shu)(shu)出(chu)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)壓(ya)(ya)(ya)(ya)(ya)(ya)－3V）×0.02。如(ru)果(guo)是(shi)n個(ge)led并(bing)聯(lian)(lian)后(hou)共(gong)用1個(ge)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)阻(zu)的(de)(de)阻(zu)值(zhi)（Ω）＝（電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)源(yuan)輸(shu)(shu)出(chu)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)壓(ya)(ya)(ya)(ya)(ya)(ya)－3V）÷n×0.02。電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)阻(zu)功(gong)率（W）＞（電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)源(yuan)輸(shu)(shu)出(chu)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)壓(ya)(ya)(ya)(ya)(ya)(ya)－3V）×n×0.02。注：led是(shi)非線性元件，燈(deng)珠(zhu)(zhu)的(de)(de)內阻(zu)不(bu)是(shi)一(yi)個(ge)定值(zhi)，不(bu)同工(gong)(gong)作(zuo)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)流(liu)下(xia)呈(cheng)現(xian)不(bu)同的(de)(de)相當于阻(zu)值(zhi)，實踐(jian)中無需計算。

用LED燈養蔬菜需要多少藍光加多少紅光

可(ke)以，沒必要，紅光(guang)搭配藍(lan)光(guang)更(geng)好。

1.全光(guang)譜只(zhi)是(shi)(shi)噱頭而(er)已，led燈很(hen)難(nan)實(shi)(shi)(shi)現真正的(de)全光(guang)譜，因為led發(fa)光(guang)芯片(pian)光(guang)譜是(shi)(shi)極窄的(de)，那你要實(shi)(shi)(shi)現全光(guang)譜，即(ji)使是(shi)(shi)可見光(guang)區域，也(ye)需要幾百顆燈珠，那就很(hen)不現實(shi)(shi)(shi)。配合熒光(guang)粉的(de)話，單(dan)色led確實(shi)(shi)(shi)可以達到白光(guang)的(de)效果，但是(shi)(shi)只(zhi)是(shi)(shi)視覺上是(shi)(shi)白色，光(guang)譜并(bing)不全，而(er)且電能有損耗。。

2.植物最適合(he)吸收的是660nm紅(hong)光和450nm藍(lan)光，用led燈(deng)珠的話(hua)一(yi)般8紅(hong)1藍(lan)比(bi)較合(he)適，對植物好且省電。

3.植(zhi)物的(de)葉綠(lv)體是可以(yi)吸(xi)(xi)收(shou)其他光譜的(de)光的(de)，所以(yi)使(shi)用所謂全(quan)光譜led只要亮(liang)度夠，植(zhi)物也可以(yi)生長，只不過(guo)吸(xi)(xi)收(shou)效(xiao)率低。

4.以上說的是種草莓。如果(guo)是觀賞植物，當然是多種顏(yan)色的白光(guang)顯(xian)色性更(geng)好一(yi)點，看著比(bi)較鮮艷。

RGB Led燈是什么

為您解（RGB燈(deng)(deng)(deng)(deng)(deng)(deng)珠(zhu)(zhu)(zhu)的(de)一(yi)種(zhong)(zhong)）藍(lan)光(guang)(guang)(guang)LED顧名思義就是(shi)發出(chu)的(de)光(guang)(guang)(guang)為藍(lan)色(se)的(de)LED，且只能發出(chu)藍(lan)色(se)光(guang)(guang)(guang)線，波長一(yi)般在450-470NM居多，而RGB led燈(deng)(deng)(deng)(deng)(deng)(deng)珠(zhu)(zhu)(zhu)是(shi)指采用紅(hong)光(guang)(guang)(guang)芯(xin)片/綠(lv)(lv)(lv)光(guang)(guang)(guang)芯(xin)片/藍(lan)光(guang)(guang)(guang)芯(xin)片封裝在一(yi)個燈(deng)(deng)(deng)(deng)(deng)(deng)杯里(li)的(de)LED燈(deng)(deng)(deng)(deng)(deng)(deng)珠(zhu)(zhu)(zhu)，由于其集成了光(guang)(guang)(guang)的(de)三種(zhong)(zhong)基色(se)（紅(hong)綠(lv)(lv)(lv)藍(lan)），所(suo)以(yi)(yi)RGB燈(deng)(deng)(deng)(deng)(deng)(deng)珠(zhu)(zhu)(zhu)除了能單(dan)獨發出(chu)紅(hong)色(se)光(guang)(guang)(guang)線/綠(lv)(lv)(lv)色(se)光(guang)(guang)(guang)線以(yi)(yi)及(ji)藍(lan)色(se)光(guang)(guang)(guang)線以(yi)(yi)外，還可以(yi)(yi)通過配(pei)光(guang)(guang)(guang)調配(pei)出(chu)白光(guang)(guang)(guang)等其它任(ren)何顏色(se)，最多可以(yi)(yi)實現(xian)1600萬色(se)。目(mu)前大火的(de)SK6812燈(deng)(deng)(deng)(deng)(deng)(deng)珠(zhu)(zhu)(zhu)，就是(shi)在RGB燈(deng)(deng)(deng)(deng)(deng)(deng)珠(zhu)(zhu)(zhu)的(de)基礎上(shang)，又增加了一(yi)顆(ke)IC控制器，從而使RGB燈(deng)(deng)(deng)(deng)(deng)(deng)珠(zhu)(zhu)(zhu)更方便快捷地實現(xian)各種(zhong)(zhong)色(se)彩變幻(huan)，同(tong)時實現(xian)各種(zhong)(zhong)閃(shan)爍(shuo)模式，更大大降低了LED燈(deng)(deng)(deng)(deng)(deng)(deng)珠(zhu)(zhu)(zhu)與IC控制器故障的(de)概率。（SK6812燈(deng)(deng)(deng)(deng)(deng)(deng)珠(zhu)(zhu)(zhu)）以(yi)(yi)上(shang)希望(wang)能夠幫(bang)到您

以上(shang)就(jiu)是小編對(dui)于450nm led燈珠(LED燈波(bo)段)問題和相關問題的解答(da)了，希望(wang)對(dui)你有用(yong)