1. Lub tswv yim ntawm LED tsav tsheb
LED yog cov yam ntxwv rhiab heev semiconductor ntaus ntawv, nrog cov yam ntxwv kub tsis zoo, nyob rau hauv daim ntawv thov txheej txheem yuav tsum tau stabilized ua hauj lwm mob thiab kev tiv thaiv, yog li muab lub tswv yim ntawm tus tsav tsheb. Lub luag haujlwm tseem ceeb ntawm tus tsav tsheb LED yog hloov AC voltage mus rau qhov tam sim no lub zog hluav taws xob tsim nyog rau kev ua haujlwm ntawm LED, kom ntseeg tau tias LED tuaj yeem ua haujlwm ntawm qhov tam sim no tsis tu ncua, txhawm rau ua kom muaj kev ua tau zoo tshaj plaws.
2.Cov yam ntxwv ntawm LED tsav tsheb
Kev ntseeg siab:tshwj xeeb tshaj yog rau kev teeb tsa sab nraum zoov lossis qhov siab siab thiab lwm yam nyuaj los tswj cov teeb ci LED thiab teeb ci, nws lub zog tsav yuav tsum muaj kev ntseeg siab, txhawm rau txo qhov nyuaj thiab tus nqi ntawm kev saib xyuas.
Kev ua haujlwm siab: LED luminous efficiency txo qis nrog qhov kub thiab txias, yog li qhov ua tau zoo ntawm cov khoom siv hluav taws xob muaj qhov cuam tshuam tseem ceeb ntawm LED kub dissipation thiab lub teeb degradation. High-efficiency tsav lub zog tuaj yeem txo lub zog poob, txo qis kev tsim hluav taws xob hauv cov teeb thiab teeb, uas yog qhov zoo rau kev ua kom lub teeb tsis ua haujlwm ntawm LED.
High zog yam:fais fab fais fab yog lub hwj chim daim phiaj xav tau rau lub load. Rau high-power LED tsav fais fab mov, lub neej yav tom ntej tej zaum yuav muaj ib tug tej yam taw qhia yuav tsum tau rau lub hwj chim yam. Cov khoom siv hluav taws xob siab tuaj yeem txo cov pa phem ntawm daim phiaj hluav taws xob, txhim kho kev ruaj ntseg ntawm daim phiaj hluav taws xob.
Ntau qhov tso zis tam sim no: cov khoom siv hluav taws xob no hloov pauv tau ua ke, txhua txoj kev LED tsis ua haujlwm tsis cuam tshuam rau lwm yam LED ua haujlwm, tab sis tus nqi siab dua me ntsis. Lwm qhov yog cov khoom siv hluav taws xob tsis tu ncua tam sim no, LED series lossis kev ua haujlwm sib luag, tus nqi qis tab sis tsis yooj yim.
Kev tiv thaiv surge: LED surge resistance tsis zoo, tshwj xeeb tshaj yog muaj peev xwm tiv thaiv qhov hluav taws xob rov qab. Yog li ntawd, LED tsav tsheb fais fab mov yuav tsum muaj lub peev xwm los tiv thaiv surge intrusion thiab tiv thaiv lub LED los ntawm kev puas tsuaj.
Kev tiv thaiv muaj nuj nqi:Ntxiv nrog rau qhov kev tiv thaiv kev ua haujlwm, nws yog qhov zoo tshaj plaws los ua kom cov LED kub tsis zoo tawm tswv yim nyob rau hauv qhov tso zis tam sim no los tiv thaiv qhov kub ntawm LED siab dhau.
Kev tiv thaiv:rau cov teeb thiab teeb ci sab nraum lub installation hom ntawm LED tsav tsheb fais fab mov, nws cov qauv yuav tsum tsis muaj dej tsis zoo, tsis muaj dej pov thawj, lub plhaub yuav tsum tiv taus tshav ntuj.
3.Lub hom LED tsav tsheb
Raws li kev siv sib txawv thiab kev xav tau, hom LED tsav tsheb feem ntau suav nrog:
Tus neeg tsav tsheb tam sim no tsis tu ncua: tus tsav tsheb zoo li no tuaj yeem ua kom ntseeg tau tias qhov hluav taws xob ntawm ob qho kawg ntawm lub teeb LED yog ib txwm khaws cia nyob rau hauv ib qho chaw, thiaj li ua kom ruaj khov ua haujlwm ntawm LED teeb.
Tus neeg tsav tsheb qhov hluav taws xob tsis tu ncua: txawm hais tias qhov hluav taws xob tsis tu ncua ntawm tus tsav tsheb kuj tuaj yeem siv rau LED tsav, tab sis vim hais tias cov yam ntxwv ntawm lub teeb ntawm LEDs feem ntau tau piav qhia raws li kev ua haujlwm ntawm qhov tam sim no, tsis yog kev ua haujlwm ntawm qhov hluav taws xob, qhov chaw tsav tsheb tam sim no feem ntau siv.
Dimming tsav tsheb: hom tsav tsheb no tuaj yeem hloov qhov ci ntawm LED teeb los ntawm kev kho cov khoom siv hluav taws xob kom paub qhov ntse tswj ntawm LED teeb thiab teeb.
Switching power supply driver: hom tsav tsheb no yog siv los hloov AC zog rau DC fais fab, muab DC ruaj khov rau LED teeb lossis LED fais fab mov.
4.Lub hauv paus ntsiab lus ntawm LED tsav tsheb
Lub luag haujlwm tseem ceeb ntawm LED tsav tsheb Circuit Court yog hloov AC voltage mus tas li tam sim no fais fab mov. Nyob rau hauv kev xyaum, muaj ntau yam kev cai Circuit Court kom ua tiav qhov no, xws li resistive buck circuit, cais flyback circuit, thawj ntug kev pab cuam. Cov circuits no muaj lawv tus kheej qhov zoo thiab qhov tsis zoo, thiab yuav tsum tau xaiv raws li cov kev thov tshwj xeeb thiab cov kev xav tau.
5.Qhov kev thov ntawm LED tsav tsheb
LED tsav tsheb yog dav siv hauv teeb pom kev zoo, zaub, tsheb teeb pom kev zoo, TV backlighting thiab lwm yam. Nrog kev nce qib ntawm LED thev naus laus zis thiab txo nqi, daim ntawv thov ntawm LED tsav tsheb kuj nthuav dav.
Ua kom tiav, LED tsav tsheb yog ib qho tseem ceeb ntawm LED daim ntawv thov, thiab nws cov kev ua tau zoo thiab kev ua tau zoo muaj qhov cuam tshuam tseem ceeb rau lub teeb pom kev zoo thiab kev pab cuam lub neej ntawm LED. Yog li ntawd, thaum xaiv thiab tsim LED tsav tsheb, nws yog ib qho tsim nyog yuav tsum tau ua tib zoo xav txog nws cov yam ntxwv, hom, Circuit Court hauv paus ntsiab lus thiab daim ntawv thov.
