led燈珠35伏 led燈壓降是多少 |
| 發布時間:2022-08-24 12:13:45 |
大家(jia)好(hao)今天來介紹led燈珠(zhu)35伏(fu)(50wled驅動電源電路圖)的問(wen)題，以下(xia)是小編對此問(wen)題的歸(gui)納整(zheng)理，來看(kan)看(kan)吧(ba)。 文章目錄列表:
35伏500毫安的led配什么樣的驅動器35伏500毫(hao)安(an)的(de)Ied燈(deng)的(de)額(e)(e)定電(dian)(dian)壓(ya)(ya)為35伏，額(e)(e)定電(dian)(dian)流(liu)(liu)為500毫(hao)安(an)，當使用(yong)驅(qu)(qu)動(dong)(dong)器(qi)去驅(qu)(qu)動(dong)(dong)35伏500毫(hao)安(an)的(de)Ied燈(deng)時，則驅(qu)(qu)動(dong)(dong)器(qi)的(de)額(e)(e)定電(dian)(dian)壓(ya)(ya)要(yao)與(yu)35伏500毫(hao)安(an)的(de)led燈(deng)的(de)額(e)(e)定電(dian)(dian)壓(ya)(ya)相同，驅(qu)(qu)動(dong)(dong)器(qi)的(de)額(e)(e)定電(dian)(dian)流(liu)(liu)要(yao)大于Ⅰed燈(deng)的(de)額(e)(e)定電(dian)(dian)流(liu)(liu)，在800毫(hao)安(an)左(zuo)右，所以該Ⅰed耍匹(pi)配35伏800毫(hao)安(an)的(de)驅(qu)(qu)動(dong)(dong)器(qi)。
led點亮后壓降多少如果是(shi)(shi)(shi)LED，那么(me)(me)(me)應(ying)(ying)該(gai)是(shi)(shi)(shi)集(ji)成芯片，30-35V應(ying)(ying)該(gai)是(shi)(shi)(shi)10串，每顆壓降為3-3.4V比較正常，那10串就(jiu)是(shi)(shi)(shi)30-34V了，但7安的(de)(de)電流就(jiu)有點奇(qi)怪了，那么(me)(me)(me)大(da)的(de)(de)電流只能(neng)(neng)是(shi)(shi)(shi)20并了，集(ji)成燈(deng)珠很難(nan)做(zuo)這么(me)(me)(me)大(da)的(de)(de)功率了，散(san)熱太難(nan)做(zuo)了，如果是(shi)(shi)(shi)燈(deng)具就(jiu)有可能(neng)(neng)了，里面應(ying)(ying)該(gai)至少有4個集(ji)成的(de)(de)燈(deng)珠 5v和35v同樣10w的led燈一樣亮嗎是的(de)(de)，只要功(gong)率相同燈(deng)(deng)的(de)(de)亮度應該是一致的(de)(de)。led燈(deng)(deng)跟傳統燈(deng)(deng)泡或熒(ying)光(guang)燈(deng)(deng)是不(bu)一樣的(de)(de)，它的(de)(de)發光(guang)原件是led燈(deng)(deng)珠，也就是發光(guang)二極管，單顆燈(deng)(deng)珠驅(qu)(qu)動電(dian)(dian)壓是很低的(de)(de)，一般(ban)是三(san)點幾伏，因此并不(bu)需要高(gao)電(dian)(dian)壓驅(qu)(qu)動，一般(ban)是通過燈(deng)(deng)珠的(de)(de)串聯并聯組成固燈(deng)(deng)板(ban)使用直(zhi)流電(dian)(dian)供電(dian)(dian)。 LED驅動電源50W1A6用負載儀帶35V輸出正常為什么帶燈珠會閃燈導(dao)(dao)至(zhi)Led燈(deng)(deng)(deng)(deng)珠(zhu)(zhu)(zhu)閃(shan)燈(deng)(deng)(deng)(deng)有兩種情(qing)況。(1)因(yin)為用(yong)(yong)負(fu)載(zai)(zai)儀測試(shi)Led驅(qu)動電(dian)(dian)(dian)(dian)源(yuan)(yuan)的(de)(de)(de)時候，必(bi)(bi)須選擇是(shi)(shi)用(yong)(yong)恒流(liu)(liu)測試(shi)還是(shi)(shi)用(yong)(yong)恒壓(ya)(ya)測試(shi)，是(shi)(shi)滿載(zai)(zai)測試(shi)，半載(zai)(zai)測試(shi)，或是(shi)(shi)空載(zai)(zai)測試(shi)。跟(gen)踞你說的(de)(de)(de)用(yong)(yong)負(fu)載(zai)(zai)儀帶35v輸出(chu)正常，說明(ming)你用(yong)(yong)的(de)(de)(de)是(shi)(shi)恒壓(ya)(ya)測試(shi)正常。沒有用(yong)(yong)恒流(liu)(liu)測試(shi)。而燈(deng)(deng)(deng)(deng)珠(zhu)(zhu)(zhu)是(shi)(shi)電(dian)(dian)(dian)(dian)流(liu)(liu)型(xing)元(yuan)件，必(bi)(bi)須用(yong)(yong)恒流(liu)(liu)驅(qu)動電(dian)(dian)(dian)(dian)源(yuan)(yuan)，比如發白光的(de)(de)(de)0.5W的(de)(de)(de)Led燈(deng)(deng)(deng)(deng)珠(zhu)(zhu)(zhu)，電(dian)(dian)(dian)(dian)壓(ya)(ya)2.5v至(zhi)3.4v，電(dian)(dian)(dian)(dian)流(liu)(liu)150mA。1w的(de)(de)(de)Led燈(deng)(deng)(deng)(deng)珠(zhu)(zhu)(zhu)，電(dian)(dian)(dian)(dian)壓(ya)(ya)2.7v至(zhi)3.9v，電(dian)(dian)(dian)(dian)流(liu)(liu)350mA。3w的(de)(de)(de)Led燈(deng)(deng)(deng)(deng)珠(zhu)(zhu)(zhu)，電(dian)(dian)(dian)(dian)壓(ya)(ya)3v至(zhi)4.4v，電(dian)(dian)(dian)(dian)流(liu)(liu)700mA。5w的(de)(de)(de)Led燈(deng)(deng)(deng)(deng)珠(zhu)(zhu)(zhu)，電(dian)(dian)(dian)(dian)壓(ya)(ya)3.1v至(zhi)4.8v，電(dian)(dian)(dian)(dian)流(liu)(liu)1000mA。可以(yi)(yi)看出(chu)功(gong)(gong)(gong)率越大需要的(de)(de)(de)驅(qu)動電(dian)(dian)(dian)(dian)流(liu)(liu)越大，電(dian)(dian)(dian)(dian)壓(ya)(ya)變化很小(xiao)。因(yin)此可以(yi)(yi)判斷Led驅(qu)動電(dian)(dian)(dian)(dian)源(yuan)(yuan)的(de)(de)(de)電(dian)(dian)(dian)(dian)流(liu)(liu)過(guo)(guo)小(xiao)，使(shi)Led燈(deng)(deng)(deng)(deng)珠(zhu)(zhu)(zhu)起動不起來(lai)，導(dao)(dao)至(zhi)Led燈(deng)(deng)(deng)(deng)珠(zhu)(zhu)(zhu)閃(shan)燈(deng)(deng)(deng)(deng)。 (2)Led的(de)(de)(de)散(san)熱(re)(re)問題導(dao)(dao)至(zhi)Led燈(deng)(deng)(deng)(deng)珠(zhu)(zhu)(zhu)閃(shan)爍。因(yin)為Led燈(deng)(deng)(deng)(deng)珠(zhu)(zhu)(zhu)在(zai)光電(dian)(dian)(dian)(dian)轉(zhuan)換的(de)(de)(de)過(guo)(guo)程中，會(hui)產生大量的(de)(de)(de)熱(re)(re)，如果散(san)熱(re)(re)沒有做好，Led燈(deng)(deng)(deng)(deng)珠(zhu)(zhu)(zhu)過(guo)(guo)熱(re)(re)會(hui)影響驅(qu)動電(dian)(dian)(dian)(dian)源(yuan)(yuan)的(de)(de)(de)質量，也就是(shi)(shi)功(gong)(gong)(gong)率會(hui)下(xia)降。功(gong)(gong)(gong)率變小(xiao)了，Led燈(deng)(deng)(deng)(deng)珠(zhu)(zhu)(zhu)起動不起來(lai)，就會(hui)發生閃(shan)燈(deng)(deng)(deng)(deng)的(de)(de)(de)問題。 led燈珠電壓多少伏一般情(qing)況下(xia)LED燈工作(zuo)電壓是3～12V。 LED燈珠(zhu)，其實(shi)就是(shi)一(yi)個發光(guang)二極管，加載(zai)一(yi)定的電(dian)(dian)壓(ya)和(he)電(dian)(dian)流后(hou)就會發光(guang)。通常來說單顆LED芯片的電(dian)(dian)壓(ya)在3V左右，電(dian)(dian)流在30mA這樣，而對于(yu)LED燈珠(zhu)的電(dian)(dian)壓(ya)和(he)電(dian)(dian)流，大都是(shi)LED封裝過程中，LED芯片的串并聯關系決定的。 燈管中用得最(zui)多(duo)的(de)0.2W的(de)LED燈珠(zhu)，是兩顆(ke)LED芯片并聯而成，即(ji)3V，60MA。而對于阻容款(kuan)電源用得最(zui)多(duo)的(de)高壓(ya)LED 9V燈珠(zhu)，則是由三顆(ke)LED芯片串聯而成，即(ji)9V，30MA。 以上就(jiu)是小(xiao)編對(dui)于led燈珠35伏(50wled驅(qu)動電源電路圖)問題(ti)和(he)相關問題(ti)的(de)解答了，希(xi)望對(dui)你(ni)有用(yong) |
