Tam sim no, LED teeb pom kev zoo ntawm lub teeb pom kev zoo heev, cov chaw ua hauj lwm muab faib ua peb pawg: ib qho yog qhov tseem ceeb LED chip koom xwm, homeopathic nqes infiltration, kev paub txog ntawm Circuit Court thiab LED fais fab tuag yog tsis ntau; Qhov thib ob yog qhov pib teeb pom kev zoo Hoobkas, nkag rau hauv ib thaj chaw tshiab, nkag siab txog qee qhov kev paub txog Circuit Court; peb yog kiag li tshiab rau lub Hoobkas, lawv siv los ua lwm yam khoom los yog kev lag luam tshiab, lub hwj huam hluav taws xob xais ib co kev to taub, thiab qee cov tsis to taub. LED fais fab tuag yog qhov tseem ceeb tshaj plaws ntawm cov roj fluorescent LED, tsis xaiv qhov teeb meem, cov roj teeb fluorescent teeb tsis tuaj yeem ua haujlwm, lossis tsis zoo li qub.
1, Vim li cas yuav tsum tsis tu ncua tam sim no:
LED tus cwjpwm hluavtaws muaj qee yam yuav ua rau nws muaj kev cuam tshuam rau ntawm ib puag ncig. Piv txwv, qhov kub hloov, LED tam sim no nce, qhov voltage nce, LED tam sim no yuav nce. Ntev dhau txoj hauj lwm uas tau them lawm, yuav ua rau kom lub neej muaj roj ntau heev. LED qhov niaj hnub tam sim no yog nyob rau qhov kub thiab qhov teeb meem thiab lwm yam kev hloov txawv txav, los xyuas kom meej tias nws txoj kev ua hauj lwm tam sim no unchanged.
2, LED fais fab tuag thiab lub teeb lub rooj sib txig sib xyaw:
(Xws li kuv> 350mA, V <> txawm yog qhov tsawg dhau los, qhov tsis muaj zog (xws li kuv <350v), tam="" sim="" no="" tsawg="" dhau,="" qhov="" voltage="" siab="" dhau="" (xws="" li="" kuv=""><40ma, v=""> 180V), qhov tshwm sim yog qhov kub hnyav, tsawg efficiency, los yog cov input voltage ntau tsis txaus. Qhov tseeb, xaiv ib txoj hlua zoo tshaj plaws thiab txoj siv sib luag, ntxiv qhov voltage thiab tam sim no ntawm txhua tus LED yog tib yam, thiab lub zog ntawm cov nyhuv tuaj yeem ua qhov kev ua tau zoo tshaj plaws. Qhov zoo tshaj plaws yog thawj zaug sib txuas lus nrog cov fais fab mov tsim khoom, tsim kho.
3, LED khiav hauj lwm tam sim no:
General LED rated ntawm 20 mA, thiab ib co factories pib siv, tus tsim ntawm 20 mA, qhov tseeb, qhov haujlwm no nyob rau hauv qhov kub hnyiab tamsis no heev, tom qab ntau qhov kev xeem sib tw, tsim rau 17 mA zoo tagnrho N-txoj kev mus tib seem tam sim no = 17 * N;
4, LED kev khiav hauj lwm muaj hluav taws xob:
General LED pom zoo ua hauj lwm voltage yog 3.0-3.5V, kev sim, feem ntau ntawm cov hauj lwm hauv 3.125V, yog li ntawm 3.125V formula ntau dua. M teeb ci hlaws hauv koob nrog rau qhov siab tag nrho = 3.125 * M
5, LED teeb lub rooj tsav tsheb series thiab mus tib seem nrog dav voltage:
Ua kom lub teeb pom kev zoo ntawm lub teeb pom kev zoo nyob rau hauv ntau hom input voltage ntau ntawm AC85-265V, ces lub teeb pom kev zoo LED hlua yuav tsum yog ib qho tseem ceeb heev. Raws li tam sim no lub hwj huam mov yog feem ntau tsis-raug rho tawm-fais fab mov, qhov yuav tsum muaj qhov dav voltage, cov zis qhov hluav taws xob yuav tsum tsis txhob muaj ntau tshaj 72V, qhov input voltage muaj peev xwm ncav cuag 85-265V. Hauv lwm lo lus, cov naj npawb ntawm cov khoom tsis tshaj 23 hom. Cov naj npawb ntawm cov mus tib seem tsis ntau dhau, txwv tsis pub ua hauj lwm tam sim no loj dhau, hnyav kub, pom zoo li 6 thiab / 8 thiab / 12 thiab. Tag nrho cov nyiaj tam sim no tsis pub tshaj 240 mA thiab. Muaj qee qhov kev pabcuam dav dav, uas yog, nrog rau L6561 / 7527 voltage nce mus rau 400V, thiab tom qab ntawd, phom, qhov sib npaug ntawm ob lub hwjchim txuas hluav taws xob, tus nqi ntawm ob, qhov kev pabcuam no tsis yog tus nqi siab, tsis muaj kev ua lag luam.
6, LED series thiab thaum uas tig mus nrog PFC fais fab thiab qhov sib txheeb ntawm qhov dav voltage:
Tam sim no muaj peb hom hwj huam tawm ntawm PFC ntawm kev ua lag luam: ib qho tsis nrog PFC rau hauv Circuit Court, PFC feem ntau yog 0.65; ib qho yog nrog PFC lub voj voog, lub teeb paug zoo, PFC feem ntau yog 0,92; kuj Nrog rau lub sij hawm nquag 7527/6561, PFC tuaj yeem ncav cuag 0.99, tab sis tus nqi ntawm cov tshuaj no yog ob zaug kom kim raws li qhov kev xaiv thib ob. Yog li ob qho kev kawm ntxiv. Rau cov PFC passive circuits: tseem hu ua Paddle-type PFC circuits, qhov kev khiav hauj lwm voltage ntau yog ib nrab lub ncov ntawm AC input voltage. Yog hais tias lub tswv yim 180V, lub ncov yog 180 * 1.414 = 254V, ib nrab ntawm lub ncov voltage yog 127V, rho tawm qhov siab-down siab qhov sib txawv ntawm 30V, lub siab tshaj plaws tso tawm 90V, yog li cov xov tooj ntawm cov teeb LED hlaws series mus txog 28 txoj hlua. Yog li, thiaj li tau txais lub zog kuj raug, tus naj npawb ntawm cov hlaws lub teeb tsis tuaj yeem ua tau ntau dhau los, tsis li, nws tsis tuaj yeem ua raws li qhov tsis tshua muaj qhov qis.
7, qhov tseem ceeb tam sim no:
Muaj qee lub hwj huam khoom hauv kev ua lag luam ntawm cov neeg pluag tam sim no, xws li nrov PT4107 / HV9910 / BP2808 / SMD802 kev pab cuam thiab lwm qhov kev pab cuam tam sim no, qhov yuam kev ntawm ± 8% lossis ± 10%, qhov teeb meem tam sim no loj dhau. Feem ntau hauv 3% ntawm nws. Raws li 3% ntawm qhov yuam kev, 6-txoj kev thaum uas tig mus, qhov yuam kev ntawm txhua txoj kev txog ± 0.5%, yog tias nws yog 12-txoj kev thaum uas tig mus, txhua txoj kev yuam kev ntawm ± 0.25%, qhov tseeb yog qhov txaus. Kev ua tau zoo heev, tus nqi yuav raug ntau dua. Thiab LED yog kev txhawj xeeb, 17 mA thiab 17.5 mA me ntsis nyhuv.
8, raug rho tawm / tsis-cais:
Kev tshem tawm hluav taws xob xws li ua 15W, nyob rau ntawm LED raj, qhov kev hloov pauv loj loj heev, nws yooj yim muab tso rau hauv. Tshwj xeeb tshaj yog rau T6 / T8 teeb, yuav luag tsis yooj yim, yog li kev sib cais tsuas ua tau rau hauv dav 15W, ntau tshaj 15W me ntsis, thiab tus nqi yog kim heev Therefore, qhov kev rho tawm ntawm tus nqi tsis siab, feem ntau tsis raug rho tawm haujlwm rau feem ntau mainstream, qhov ntim tau me me, qhov tsawg kawg nkaus yuav siab 8 hli, qhov tseeb, cov kev tiv thaiv tsis yog cais tawm, tsis muaj teeb meem.
9, Kev siv hluav taws xob:
Output power (zis LED voltage * cov zis tam sim no) / input fais fab. Qhov ntsuas no tseem ceeb heev, yog tias qhov kev ua haujlwm tsis zoo txhais tau hais tias qhov loj ntawm qhov tawm tswv yim rau hauv tshav kub tawm; Yog hais tias ntsia lub teeb yuav ua rau kub kub heev, ua ke nrog peb cov kev ua kom pom zoo tshaj qhov tseem ceeb tshaj qhov kub Thaum lub tshav kub yuav ua kom sov dua, thiab lub neej ntawm txhua qhov hauv hluav taws xob hauv peb lub hwj huam yuav raug ua kom luv zog , yog li ntawd qhov kev ua tau zoo yog qhov tseem ceeb tshaj plaws hauv kev txiav txim siab lub zog ntawm lub neej, qhov ua tau zoo tsis txaus, yog tias lwm tus noj Cov hluav taws xob nyob hauv lub hwj huam yog loj heev. Feem ntau tshaj li 80% ntawm nws, tab sis qhov ua tau zoo ntawm txoj kev sib txuam nrog lub teeb nruab nrog kev sib txuas.
1 0, Qhov Loj:
Qhov siab yog qhov tseem ceeb limiting, feem ntau yog siv rau T6 raj / T8 loj me me tsis tuaj yeem siab siab siab ≤ 9 hli. T10 raj qhov siab ≤ 15 hli. Ntev tau ntev, yooj yim rau cua sov.
Cov khoom kub: Ntse sensor siab bay , LED teeb lub teeb nruas , tawm teeb , LED teeb teeb
