Kaum Qhov Kev Ceeb Toom rau LED Txoj Kev Teeb LED Txoj Kev Teeb

Kaum Qhov Kev Ceeb Toom rau LED Txoj Kev Teeb-LED Txoj Kev Teeb Muaj ntau qhov kev siv ntawm LED txoj kev teeb nyob rau hauv lub neej niaj hnub no tau ua lub luag haujlwm txiav txim siab hauv kev txhim kho teeb pom kev zoo, tshwj xeeb tshaj yog ob yam ntawm kev txuag hluav taws xob thiab cov pa roj carbon tsawg ntawm LED txoj kev teeb tau ua ib qho tseem ceeb hauv zej zog. Cia peb tham txog cov txheej txheem ntawm kev siv txhua hnub. 10 yam uas LED txoj kev teeb yuav tsum xyuam xim rau. 1. LED txoj kev teeb hluav taws xob yuav tsum yog qhov tam sim no Cov khoom siv teeb pom kev zoo ntawm LED txoj kev teeb txiav txim siab tias nws cuam tshuam los ntawm ib puag ncig. Piv txwv li, raws li qhov kub thiab txias, qhov tam sim no ntawm LED yuav nce; Tsis tas li ntawd, qhov tam sim no ntawm LED yuav kuj nce nrog qhov nce ntawm qhov voltage. Yog tias kev ua haujlwm ntev tshaj li qhov ntsuas tam sim no, nws yuav ua rau lub neej ua haujlwm luv ntawm LED teeb hlaws.

LED tsis tu ncua tam sim no yog los xyuas kom meej tias tam sim no tus nqi ntawm nws cov hauj lwm tseem tsis hloov thaum ib puag ncig yam xws li kub thiab voltage hloov. 2. Qhov tseeb tam sim no ntawm LED txoj kev teeb hluav taws xob qhov tseeb qhov tseeb ntawm qee cov khoom siv hluav taws xob hauv khw tsis zoo, qhov yuam kev yuav ncav cuag ± 8%, thiab qhov tsis tu ncua tam sim no yuam kev loj heev. Qhov kev xav tau dav dav yog nyob rau hauv ± 3%.

Raws li cov qauv tsim ntawm 3%. Cov khoom siv fais fab yuav tsum tau kho kom zoo kom ua tiav ± 3% yuam kev. 3. Ua hauj lwm voltage ntawm LED txoj kev teeb fais fab mov Feem ntau, qhov pom zoo ua hauj lwm voltage ntawm LEDs yog 3.0-3.5V. Tom qab kev sim, feem ntau ntawm lawv ua haujlwm ntawm 3.2V, yog li cov qauv kev suav raws li 3.2V yog qhov tsim nyog dua.

Tag nrho qhov hluav taws xob ntawm N teeb hlaws hauv series = 3.2 * N 4. Dab tsi yog qhov tsim nyog ua haujlwm tam sim no ntawm LED txoj kev lub teeb fais fab? Piv txwv li, qhov ntsuas ua haujlwm tam sim no ntawm LED yog 350mA, qee lub chaw tsim khoom siv thaum pib, thiab tsim 350mA, qhov tseeb, kev ua haujlwm kub yog qhov hnyav heev nyob rau hauv qhov tam sim no, tom qab ntau qhov kev sib piv, nws yog qhov zoo tshaj plaws los tsim nws li 320mA. Txo cov cua sov tsim kom tsawg, kom muaj hluav taws xob ntau dua tuaj yeem hloov mus ua lub teeb pom kev zoo. 5. Yuav ua li cas dav yog qhov kev sib txuas ntawm cov kab sib txuas thiab qhov dav ntawm LED txoj kev teeb hluav taws xob? Txhawm rau ua kom cov LED txoj kev teeb lub teeb hluav taws xob ua haujlwm nyob rau hauv qhov sib txawv ntawm cov khoom siv hluav taws xob sib txawv ntawm AC85-265V, LED series-parallel kev sib txuas ntawm lub teeb board yog qhov tseem ceeb heev.

Sim tsis txhob siv qhov hluav taws xob dav dav, tuaj yeem muab faib ua AC220V, AC110V ntau npaum li qhov ua tau, thiaj li ua kom ntseeg tau qhov kev ntseeg tau ntawm cov khoom siv hluav taws xob. Txij li cov khoom siv hluav taws xob tam sim no feem ntau yog ib qho kev tsis sib cais ntawm cov kauj ruam-down tas li tam sim no fais fab mov, thaum qhov yuav tsum tau muaj qhov hluav taws xob yog 110V, cov zis voltage yuav tsum tsis pub tshaj 70V, thiab cov xov tooj sib txuas yuav tsum tsis txhob ntau tshaj 23. Thaum cov input voltage yog 220V, cov zis voltage yuav ncav cuag 156V.

Qhov ntawd yog hais tias, tus naj npawb ntawm cov kev sib txuas ntawm series tsis tshaj 45 cov hlua. Tus naj npawb ntawm cov kev sib txuas sib txuas yuav tsum tsis txhob loj dhau, txwv tsis pub cov kev ua haujlwm tam sim no yuav loj dhau thiab cov khoom siv hluav taws xob yuav kub hnyiab heev. Kuj tseem muaj kev daws teeb meem dav dav, APFC lub zog them nyiaj siv hluav taws xob yog thawj zaug siv L6561/7527 kom nce qhov hluav taws xob mus rau 400V, thiab tom qab ntawd nqis, uas yog sib npaug rau ob lub zog hloov khoom siv.

Qhov kev pab cuam no tsuas yog siv nyob rau hauv tej yam kev mob. 6. Kev rho tawm / tsis sib cais Feem ntau, yog tias cov khoom siv hluav taws xob sib cais tau tsim rau hauv 15W thiab muab tso rau hauv lub hwj chim raj ntawm LED txoj kev teeb, lub transformer yog loj heev thiab nws yog ib qho nyuaj rau muab tso rau hauv. Nws tsuas yog nyob ntawm qhov chaw qauv thiab nyob ntawm qhov xwm txheej tshwj xeeb. Feem ntau, kev sib cais tsuas tuaj yeem ncav cuag 15W, thiab qhov siab tshaj 15W yog qhov tsawg, thiab tus nqi kim heev.

Yog li ntawd, tus nqi-kev ua tau zoo piv ntawm kev sib cais tsis yog siab. Feem ntau, tsis muaj kev sib cais yog qhov tseem ceeb, thiab qhov ntim tuaj yeem ua kom me me, thiab qhov siab yam tsawg kawg nkaus tuaj yeem yog 8 hli. Qhov tseeb, tsis muaj teeb meem yog tias kev ntsuas kev nyab xeeb tsis raug cais tawm tau zoo. Yog tias qhov chaw tso cai, nws kuj tuaj yeem siv tau los ua ib qho hluav taws xob cais tawm. 7. Yuav ua li cas cov LED txoj kev teeb lub hwj huam mov sib phim lub teeb hlaws board? Qhov tseeb, yog tias koj xaiv qhov kev sib txuas zoo tshaj plaws-sib npaug, qhov voltage thiab tam sim no siv rau txhua lub LED yuav zoo ib yam, tab sis cov khoom siv hluav taws xob yuav muaj qhov ua tau zoo tshaj plaws.

Txoj hauv kev zoo tshaj plaws yog kev sib txuas lus nrog cov chaw tsim khoom siv hluav taws xob ua ntej thiab ua ib qho kev txiav. Los yog tsim koj tus kheej fais fab mov. 8. LED txoj kev teeb pom kev zoo Lub zog tawm tswv yim rho tawm cov nqi hluav taws xob tso tawm, qhov ntsuas no yog qhov tseem ceeb, qhov ntau dua tus nqi, qhov ua haujlwm qis dua, uas txhais tau hais tias feem ntau ntawm cov khoom siv hluav taws xob hloov mus rau hauv tshav kub thiab tawm; Yog tias nws tau nruab rau hauv lub teeb, nws yuav tsim kom muaj qhov kub thiab txias, ntxiv rau cov cua sov tawm los ntawm qhov sib piv ntawm peb cov LED, nws yuav ua rau kub siab dua. Thiab lub neej ntawm tag nrho cov khoom siv hluav taws xob hauv peb cov khoom siv hluav taws xob yuav luv luv thaum qhov kub nce. Yog li kev ua tau zoo yog qhov tseem ceeb tshaj plaws uas txiav txim siab lub neej ntawm cov khoom siv hluav taws xob. Qhov tseem ceeb tshaj plaws yog tias qhov kev ua tau zoo tsis tuaj yeem qis dhau, txwv tsis pub cov cua sov uas siv los ntawm cov khoom siv hluav taws xob yuav loj dhau.

Qhov ua tau zoo ntawm cov yam tsis raug cais tawm yog siab dua li ntawm hom cais, feem ntau tshaj 80%. Txawm li cas los xij, qhov ua tau zoo yog cuam tshuam nrog kev sib txuas ntawm kev sib txuas ntawm lub teeb board. 9. Thaum tshav kub kub dissipation ntawm LED txoj kev teeb qhov chaw Lub ntsiab tseem ceeb ntawm lub tshav kub dissipation tov yog hais tias lub lifespan ntawm LED txoj kev teeb hlaws yuav ntev heev thaum siv nyob rau hauv cov kev mob ntawm tsis overheating. Feem ntau, aluminium alloy yog siv, uas yooj yim rau dissipate tshav kub. Ntawd yog hais tias, LED txoj kev teeb lub teeb hluav taws xob hlaws tau muab tso rau ntawm aluminium substrate, thiab sab nraud tshav kub dissipation cheeb tsam yog nthuav kom ntau li ntau tau. 10. LED txoj kev teeb lub zog txias Lub ntsiab tseem ceeb rau cov cua sov dissipation yog tias LED txoj kev teeb lub hwj chim muab hlaws dai tuaj yeem ua rau lawv lub neej ntev heev thaum siv nyob rau hauv cov xwm txheej tsis kub dhau. Feem ntau, aluminium alloy radiators yog siv, uas yooj yim rau dissipate tshav kub.

Qhov ntawd yog hais tias, LED txoj kev teeb lub zog hlaws hlaws tau muab tso rau ntawm aluminium substrate, thiab sab nraud tshav kub dissipation cheeb tsam yog nthuav kom ntau li ntau tau. Lub kaum yam khoom saum toj no tau txheeb xyuas cov ntsiab lus tseem ceeb ntawm LED txoj kev teeb hauv kev nthuav dav rau peb. Kev siv tsim nyog yuav txhim kho lub neej kev pab cuam ntawm LED txoj kev teeb thiab txo cov nqi tsim khoom. Kuv ntseeg tias leej twg yuav txaus siab heev.