Yav dhau los, halogen teeb feem ntau tau xaiv rau lub tsheb teeb pom kev zoo.Nyob rau hauv xyoo tas los no, daim ntawv thov ntawm LED nyob rau hauv tag nrho lub tsheb pib loj hlob sai heev.Lub neej kev pab cuam ntawm cov teeb halogen ib txwm siv tsuas yog li 500 teev, thaum lub teeb tseem ceeb ntawm LED teeb yog txog 25000 teev.Qhov zoo ntawm lub neej ntev yuav luag tso cai rau cov teeb ci LED kom npog tag nrho lub neej voj voog ntawm lub tsheb.
Daim ntawv thov ntawm sab nrauv thiab sab hauv teeb, xws li pem hauv ntej teeb pom kev zoo headlamp, tig teeb liab teeb, tail teeb, sab hauv teeb, thiab lwm yam, pib siv LED teeb qhov chaw rau tsim thiab ua ke.Tsis tsuas yog lub tsheb teeb pom kev zoo, tab sis kuj tseem muaj teeb pom kev zoo los ntawm cov neeg siv khoom siv hluav taws xob mus rau cov khoom siv hluav taws xob hauv lub Hoobkas.LED tsim nyob rau hauv cov teeb pom kev zoo no muaj ntau haiv neeg thiab kev sib koom ua ke, uas yog tshwj xeeb tshaj yog nyob rau hauv tsheb teeb pom kev zoo.
Kev loj hlob sai ntawm LED hauv tsheb teeb pom kev zoo
Raws li lub teeb pom kev zoo, LED tsis tsuas yog muaj lub neej ntev dua, tab sis nws cov kev ua haujlwm luminous kuj zoo heev tshaj li cov teeb halogen zoo tib yam.Lub luminous efficiency ntawm halogen teeb yog 10-20 Im / W, thiab luminous efficiency ntawm LED yog 70-150 Im / W.Piv nrog rau qhov tsis sib haum xeeb ntawm cov hluav taws kub dissipation ntawm cov teeb pom kev zoo, kev txhim kho luminous efficiency yuav txuag hluav taws xob ntau dua thiab muaj txiaj ntsig hauv teeb pom kev zoo.Lub sij hawm teb LED nanosecond kuj tseem muaj kev nyab xeeb dua li lub teeb halogen thib ob lub sijhawm teb, uas yog qhov tshwj xeeb tshaj yog nyob rau hauv qhov kev ncua deb.
Nrog rau kev txhim kho txuas ntxiv ntawm LED tsim thiab qib kev sib xyaw ua ke nrog rau kev txo qis ntawm tus nqi, LED teeb pom kev zoo tau raug txheeb xyuas hauv cov khoom siv hluav taws xob hauv tsheb hauv xyoo tas los no thiab tau pib ua kom nws feem ntau hauv tsheb teeb pom kev zoo.Raws li TrendForce cov ntaub ntawv, qhov nkag mus ntawm LED headlights nyob rau hauv lub ntiaj teb no cov neeg nrog caij tsheb yuav ncav cuag 60% nyob rau hauv 2021, thiab qhov nkag mus ntawm LED headlights nyob rau hauv lub tsheb fais fab yuav siab dua, mus txog 90%.Nws kwv yees tias qhov nkag mus yuav nce mus rau 72% thiab 92% raws li hauv 2022.
Tsis tas li ntawd, cov thev naus laus zis zoo xws li lub teeb taub hau ntse, teeb pom kev, teeb pom kev zoo, MiniLED / HDR tsheb zaub kuj tau ua kom nrawm nkag mus ntawm LED hauv tsheb teeb pom kev zoo.Niaj hnub no, nrog rau kev txhim kho lub teeb pom kev zoo ntawm lub tsheb ntawm tus kheej, kev sib txuas lus, thiab kev pab tsav tsheb, ob lub tuam txhab tsheb thiab cov tuam txhab hluav taws xob tau pib nrhiav txoj hauv kev los sib txawv LED.
Kev xaiv ntawm LED tsav tsheb topology
Raws li lub teeb pom kev zoo, LED ib txwm yuav tsum tau tswj los ntawm kev tsav tsheb.Feem ntau, thaum tus naj npawb ntawm LED loj lossis lub zog siv ntawm LED loj, nws yog ib qho tsim nyog yuav tsum tau tsav tsheb (feem ntau yog ob peb theem ntawm kev tsav).Xav txog qhov sib txawv ntawm kev sib txuas ntawm LED, nws tsis yooj yim rau cov neeg tsim qauv tsim tus tsav tsheb tsim LED.Txawm li cas los xij, nws tuaj yeem paub meej tias vim yog cov yam ntxwv ntawm LED nws tus kheej, nws tsim cov cua sov loj thiab xav tau kev txwv tam sim no rau kev tiv thaiv, yog li qhov kev tsav tam sim no yog qhov zoo tshaj plaws LED tsav hom.
Lub hauv paus ntsiab lus ntawm kev tsav tsheb ib txwm siv tag nrho lub zog ntawm LEDs hauv qhov system ua qhov ntsuas ntsuas thiab xaiv cov tsav tsheb sib txawv.Yog hais tias tag nrho rau pem hauv ntej voltage siab tshaj qhov input voltage, ces koj yuav tsum xaiv ib tug boost topology kom tau raws li qhov yuav tsum tau voltage.Yog tias tag nrho rau pem hauv ntej voltage qis dua qhov input voltage, koj yuav tsum tau siv cov kauj ruam-down topology los txhim kho tag nrho cov efficiency.Txawm li cas los xij, nrog rau kev txhim kho ntawm LED dimming muaj peev xwm yuav tsum tau thiab qhov tshwm sim ntawm lwm yam yuav tsum tau, thaum xaiv LED tsav tsheb, peb yuav tsum tsis tsuas yog xav txog lub hwj chim theem, tab sis kuj xav txog tag nrho cov topology, efficiency, dimming thiab xim sib tov txoj kev.
Kev xaiv ntawm topology nyob ntawm qhov chaw tshwj xeeb ntawm LED nyob rau hauv lub tsheb LED system.Piv txwv li, nyob rau hauv lub siab beam thiab headlamp ntawm lub tsheb teeb pom kev zoo, feem ntau ntawm lawv yog tsav los ntawm step-down topology.Cov kauj ruam-down tsav no zoo heev hauv kev ua haujlwm bandwidth.Nws tseem tuaj yeem ua tiav EMI kev ua tau zoo los ntawm kev tsim cov kev sib kis spectrum zaus hloov kho.Nws yog qhov kev xaiv zoo tshaj plaws topology hauv LED tsav.EMI kev ua tau zoo ntawm boost LED tsav kuj zoo heev.Piv nrog rau lwm hom topologies, nws yog lub tswv yim tsav me tshaj plaws, thiab nws tau siv ntau dua nyob rau hauv qhov qis thiab siab beam teeb thiab backlights ntawm tsheb.
Post lub sij hawm: Dec-06-2022