Txheeb xyuas qhov teeb meem ntawm LED Qhov Chaw Module Failure

Kev hloov pauv ntawm LED teeb hlaws VF tsis suav nrog, ua rau muaj kev ua haujlwm qis ntawm lub teeb, thiab txawm tias tus nqi thauj khoom ntawm LED teeb qhov chaw module hauv qhov tsis ruaj tsis khov LED teeb qhov chaw module. Nws feem ntau yog tsim los ntawm ntau txoj hlua LED ntawm LEDs. kom muaj nuj nqis. LED's VF hloov nrog kub hloov. Feem ntau, ntawm qhov tam sim no, VF ua qis dua ntawm qhov kub thiab txias, thiab VF ua rau kub qis. Yog li ntawd, qhov ua haujlwm voltage ntawm LED teeb thauj khoom ntawm qhov kub siab sib raug rau VOL, thiab lub teeb ci LED load load kev khiav hauj lwm voltage ntawm qhov kub qis sib haum rau VOH. Thaum xaiv lub LED tsav, tus tsav tsheb cov zis voltage ntau dua VOL VOH. Yog hais tias tus nqi ntawm LED lub teeb qhov chaw module rau qhov loj tso zis voltage yog qis dua VOH, qhov kam rau ua ntawm lub teeb ntawm qhov kub thiab txias yuav tsis ncav cuag lub hwj chim tiag. Yog tias xaiv LED tsav mus rau qhov tsis tshua muaj hluav taws xob siab dua VOL, lub tsav yuav raug tsav ntawm qhov kub ntawm qhov kub siab. Cov zis ntau tshaj qhov kev ua haujlwm, kev ua haujlwm tsis ruaj khov, lub teeb yuav flash, thiab lwm yam. Tab sis kev paub txog tus nqi thiab kev ua haujlwm zoo, koj tsis tuaj yeem ua qhov muag tsis pom qhov ntau ntawm LED tsav lub ultra-wide tso zis voltage ntau: vim hais tias tus tsav tsheb voltage tsuas yog nyob rau hauv ib tug tej yam, lub efficiency ntawm tsav yog lub siab tshaj plaws efficiency. Tom qab tshaj qhov ntau, qhov ua tau zoo thiab lub zog muaj zog (PF) yuav deteriorate. Nyob rau tib lub sijhawm, kev tsim cov khoom siv hluav taws xob ntau ntawm cov neeg tsav tsheb dav dhau, uas yuav ua rau cov nqi nce ntxiv thiab kev ua haujlwm tsis tuaj yeem ua kom zoo dua. Yog hais tias lub zog tshuav nyiaj li cas thiab qhov yuav tsum tau txo qis tsis tau txiav txim siab, lub zog nominal ntawm LED tsav yog hais txog cov ntaub ntawv ntsuas los ntawm qhov ntsuas ib puag ncig thiab cov ntsuas hluav taws xob. Xav tias cov neeg siv khoom sib txawv yuav muaj cov ntawv thov sib txawv, feem ntau cov neeg siv khoom siv LED yuav muab lub zog txo qis ntawm lawv tus kheej cov khoom lag luam (cov khoom siv dav dav VS ambient kub poob nkhaus thiab thauj khoom VS input voltage txo nkhaus)). Qhov nkhaus liab qhia tau hais tias thaum tus nqi ntawm LED lub teeb qhov chaw module yog input 120VAC, lub zog txo nkhaus nrog lub ambient kub hloov. Thaum lub ambient kub qis dua 50 C, tus neeg tsav tsheb tso cai rau 100 tag nrho loads. Thaum lub ambient kub siab li 70 C, tus neeg tsav tsheb tsuas yog txo cov load rau 60%. Thaum lub ambient kub hloov ntawm 50-70 C, lub load load ntawm lub tsav yog nrog rau qhov kub thiab txias nrog rau qhov kub thiab txias nce thiab linear poob. Qhov nkhaus xiav qhia tau hais tias thaum tus tsav tsheb LED nkag mus rau 230VAC lossis 277VAC, nws cov khoom thauj muaj lub zog txo qis nrog cov kev hloov pauv ntawm qhov kub thiab txias. Txoj kev nkhaus xiav txhais tau hais tias thaum tus tsav tsheb LED yog 55 C, qhov tso zis hluav taws xob txo qhov nkhaus nrog cov kev hloov pauv hauv qhov hluav taws xob input hloov. Thaum lub input voltage yog 140VAC, lub load ntawm tus tsav tsheb tso cai rau 100 tag nrho loads, thiab raws li cov input voltage yog txo; Yog hais tias cov zis hluav taws xob tseem tsis hloov pauv, cov tswv yim tam sim no yuav nce, uas ua rau qhov nce hauv qhov kawg ntawm cov tswv yim poob, qhov ua tau zoo txo, qhov kub ntawm cov cuab yeej yuav nce, cov ntsiab lus kub ntawm tus kheej tuaj yeem ua tau. Cov qauv ntau dhau tuaj yeem ua rau cov cuab yeej ua tsis tiav. Yog li ntawd, thaum lub input voltage tsawg dua 140VAC, cov zis load ntawm tus neeg tsav tsheb yuav tsum tau txo nrog lub input voltage thiab linear txo. Tom qab nkag siab txog qhov txo qis qis thiab cov kev xav tau sib xws, thaum xaiv tus nqi ntawm LED teeb qhov chaw module, koj yuav tsum ua tib zoo xav thiab xaiv raws li qhov tseeb ib puag ncig qhov kub thiab txias input voltage, thiab tawm kom tsim nyog tawm ntawm kev txo qis ntawm qhov txo qis ntawm qhov txo qis.