Taw qhia txog qhov ua rau puas tsuaj rau cov teeb LED hlaws thiab cov txheej txheem tiv thaiv
Dawb LED teeb hlaws yog cov khoom siv hluav taws xob. Hauv kev ua haujlwm tiag, tam sim no yog 20mA raws li qhov txwv siab tshaj. Txawm li cas los xij, tam sim no feem ntau yuav nce vim yog ntau yam laj thawj hauv kev siv. Yog tias tsis muaj kev ntsuas tiv thaiv, qhov nce ntxiv Cov hlaws LED teeb yuav raug puas ntsoog tom qab tam sim no dhau lub sijhawm thiab qhov dav.
Qhov laj thawj tseem ceeb rau kev puas tsuaj ntawm LED teeb hlaws yog:
Circuit Qhov luv Circuit Court ntawm qee yam khoom siv lossis kab ntawv luam tawm lossis lwm cov xov hlau hauv kab hluav taws xob tsim cov hluav taws xob luv hauv cheeb tsam ntawm txoj kab hluav taws xob ntawm LED teeb hlaws, uas nce qhov hluav taws xob hauv qhov chaw no.
② Ua kom lub zog hluav taws xob nce sai.
Temperature Qhov kub hauv lub teeb yog siab dhau, uas ua rau cov yam ntxwv ntawm cov teeb ci LED teeb tsis zoo.
④ Qee qhov teeb ci LED teeb tau luv-ncig vim nws tus kheej puas tsuaj, thiab nws qhov hluav taws xob qub poob tau hloov mus rau lwm lub teeb LED hlaws.
Hen Thaum sib sau ua ke, kev ua haujlwm tiv thaiv zoo li qub tsis tau ua tiav, yog li sab hauv ntawm lub teeb LED hlaws tau raug puas tsuaj los ntawm hluav taws xob zoo li qub. Txawm hais tias qhov hluav taws xob ib txwm muaj thiab qhov txiaj ntsig tam sim no tau siv, nws yooj yim heev ua rau puas tsuaj rau lub teeb LED hlaws.
⑥ Dej nkag rau hauv lub teeb, thiab cov dej yog cov coj.
Yog li, peb puas yuav tsum tiv thaiv lub teeb LED hlaws?
1. Siv cov hluav taws xob hluav taws xob hluav taws xob qis
Kev tiv thaiv hluav taws xob hluav taws xob ntev yog qhov tiv thaiv kev ua haujlwm tau zoo hauv daim ntawv ntawm diode. Thaum nws ob tus ncej raug rau qhov rov ua haujlwm hloov pauv lub zog loj, nws tuaj yeem txo qhov kev tiv thaiv nruab nrab ntawm nws ob tus ncej mus rau qhov tsis kam tiv thaiv ntawm qhov nrawm ntawm 10 rho tawm 12 vib nas this hauv lub sijhawm luv luv, thiab nqus mus txog ob peb kilowatts ntawm lub zog muaj zog. , Qhov ntsuas hluav taws xob nruab nrab ntawm ob tus ncej yog clamped rau tus nqi hluav taws xob uas tau txiav txim siab ua ntej, uas tiv thaiv cov khoom siv tau zoo hauv cov hluav taws xob hluav taws xob. Kev siv hluav taws xob tua hluav taws xob muaj qhov zoo ntawm lub sijhawm teb nrawm, lub zog loj hloov pauv, tsis muaj xau tam sim no, zoo sib xws ntawm kev tawg qhov hluav taws xob sib txawv, tswj tau yooj yim ntawm qhov hluav taws xob clamping, tsis muaj kev puas tsuaj, thiab me me. Txawm li cas los xij, nws tsis yooj yim mus nrhiav TVS cov cuab yeej uas ua tau raws li qhov xav tau tus nqi hluav taws xob hauv kev siv tiag. Kev puas tsuaj ntawm LED lub teeb hlaws feem ntau yog tshwm sim los ntawm kev ua kom sov sab hauv lub nti vim muaj ntau dhau. TVS tsuas tuaj yeem txheeb xyuas qhov overvoltage tab sis tsis dhau tam sim no. Nws nyuaj rau xaiv qhov tsim nyog tiv thaiv qhov ntsuas hluav taws xob, thiab yam khoom siv no tsis tuaj yeem tsim thiab nws nyuaj rau siv hauv kev xyaum.
2. Fuse tau siv hauv kev tiv thaiv Circuit Court
Vim tias lub fuse pov tseg, cov tshuaj tiv thaiv qeeb qeeb, cov txiaj ntsig tsis zoo, thiab kev siv teeb meem, yog li lub fuse tsis haum rau siv hauv lub teeb LED ua tiav, vim tam sim no lub teeb LED tam sim no feem ntau siv hauv nroog [GG ] #39; txoj haujlwm zoo kawg nkaus thiab txoj haujlwm teeb pom kev zoo. Nws xav kom cov teeb hluav taws xob tiv thaiv kab mob LED ua rau hnyav heev: kev tiv thaiv tuaj yeem ua haujlwm tau tam sim thaum qhov kev siv tam sim no tau dhau mus, yog li txoj kev siv hluav taws xob ntawm LED raug txiav tawm, yog li LED thiab lub zog tuaj yeem tiv thaiv tau , thiab nws tuaj yeem rov kho tau tom qab lub teeb tag nrho yog qhov qub. Lub zog siv hluav taws xob tsis cuam tshuam rau kev ua haujlwm ntawm LED. Lub voj voog tsis tuaj yeem nyuaj dhau, tsis loj heev, thiab tus nqi qis. Yog li ntawd, nws nyuaj heev rau kev siv fuse.
3. Xaiv lub fuse rov zoo rau tus kheej
Fuse rov qab rau tus kheej, tseem hu ua polymer qhov ntsuas kub zoo thermistor PTC, yog tsim los ntawm polymer thiab cov khoom coj ua. Tom qab ua tiav tshwj xeeb, cov khoom siv coj los ua ib txoj hauv kev zoo li txoj hauv kev hauv cov polymer. Thaum qhov kev ua haujlwm tam sim no dhau los (lossis cov khoom sib xyaw yog qhov kub ib puag ncig ib puag ncig), PTC rov pib dua fuse yog nyob hauv lub xeev tsis kam tiv thaiv; thaum muaj qhov txawv txav overcurrent hauv Circuit Court, cov cua sov tsim los ntawm cov dej loj tam sim no ua rau cov polymer nthuav dav sai, thiab nws raug txiav tawm. Txoj kev coj ua uas tsim los ntawm cov khoom coj ua, PTC rov ua dua fuse yog nyob rau hauv lub xeev tiv taus siab; thaum cov hluav taws xob tam sim no dhau mus, cov polymer txias thiab lub ntim rov qab mus rau qhov qub, thiab cov khoom siv hluav taws xob rov tsim dua txoj hauv kev, thiab PTC rov pib dua fuse xav tias yog lub xeev qub. Lub xeev tsis kam tiv taus
Qhov saum toj no yog txoj kev tiv thaiv ntawm LED teeb hlaws, Kuv vam tias nws yuav muaj txiaj ntsig zoo rau txhua tus.
