Dab tsi voltage yog siv los ntawm LED qhov muag teev? Nov yog peb cov lus teb!
Koj yuav tsum nkag siab txog qhov sib txawv ntawm ntau lub qhov muag teeb coj los xaiv qhov zoo tshaj plaws coj teeb pom kev zoo. Koj yuav tsum paub txog qhov voltage rau nws.
Muaj ntau ntau yam voltages ntawm LED teeb muaj. Koj yuav tsum muaj kev nkag siab tseem ceeb ntawm tag nrho cov teeb pom kev zoo txhawm rau txiav txim siab qhov tsim nyog rau koj lub teeb ci LED.
Los ntawm cov khoom siv hluav taws xob tsawg rau cov khoom siv high-tech LED qhov muag teev, muaj ntau ntau hom qhov muag teev, qee qhov tseem tuaj yeem siv tau.
Muaj ntau ntau yam sib txawv, yog li nws yog ib qho tseem ceeb uas koj nkag siab qhov voltage lawv ua haujlwm li cas thiaj li tau txais qhov tsim nyog rau txoj haujlwm.
Feem ntau cov teeb ci LED ua haujlwm ntawm qhov tsis tshua muaj hluav taws xob, uas yog sib npaug rau lub teeb hluav taws xob tsawg ntawm 8 txog 24 volts. High-voltage LED qhov muag teev kuj muaj, qee qhov tuaj yeem tsim tau txog 120 volts. Feem ntau ntawm LED teeb tsis ua haujlwm dhau 24 volts vim tias ua li ntawd yuav ua rau muaj kev phom sij.
Raws li qhov yuav tsum tau ua theem tso zis, qee qhov LED qhov muag teev siv kev sib xyaw ua ke ntawm cov hluav taws xob qis thiab siab.
LED yog dab tsi, raws nraim?
Lub teeb Emitting Diodes, los yog LEDs, yog cov teeb uas tsim los kom tawm lub teeb yam tsis muaj cua sov.
Tsis tas li ntawd, cov khoom siv no siv cov semiconductors. Cov semiconductors no tuaj yeem qhib thiab tawm ntau yam zoo li lub teeb pom kev zoo.
Thaum koj hloov ntawm LED, lub teeb yog tsim thaum electrons txav los ntawm qhov chaw ntawm lub semiconductor. Cov LED dawb yog ib qho ntawm indium phosphide LEDs uas tau siv ntau zaus.
Cov LEDs no yog tsim los muab lub teeb dawb nrog cov tsos zoo ib yam li lub teeb pom kev zoo. Vim lub fact tias LEDs yog tsim los ntawm ib tug neeg diodes, feem ntau ntawm LED teeb muaj ib tug kuj zoo li zoo li.
Qhov tseeb yog tias LED teeb muaj nyob rau hauv ntau yam tsis zoo ntawm qhov ntau thiab tsawg thiab tsim, yog li koj yuav tsum tau ua qee qhov kev tshawb fawb kom pom qhov zoo tshaj plaws haum rau koj cov kev xav tau.
Dab tsi voltage yuav tsum tau rau lub hwj chim LED?
Lub zog txuag hluav taws xob yog lub teeb-emitting diode, lossis LED. Lawv tsis muaj filament, lawv me me, thiab lawv tsis kub heev.
Lawv yog ib qho yooj yim txaus gadget siv nyob rau hauv tej yaam num rau beginners nyob rau hauv electronics.
LED fais fab tuag tej zaum yuav nyuaj me ntsis. Lub zog ib txwm ntsuas hauv Volts, thiab qee lub zog LEDs xav tau qhov hluav taws xob ntau dua li lwm tus.
Koj xav tau pes tsawg volts?Feem ntau LED tsav tsheb tsis tshua pom tus tsav lub zog; xwb, lawv tsuas qhia tus nqi ntawm lub hwj chim xa.
Kev tuav tsawg kawg yog 2 volt nyiaj siv ua haujlwm yog pom zoo vim qee tus neeg tsav tsheb xav tau qhov no kom ua haujlwm raug. Yog li, yog tias tag nrho cov hluav taws xob xa mus rau ib lub voj voog yog 9.55, 12V yuav tsum muaj kev nyab xeeb.
Tus tsav tsheb uas muaj qhov tso zis ntau ntawm 3-12 VDC rau off-line (AC input) tsav tsheb kuj yuav tsim nyog rau daim ntawv thov no; koj tsuas yog yuav tsum paub txog qhov no.
Puas yog LED Teeb Xav Tau Transformer?
Tib hom teeb pom kev zoo uas tuaj yeem ua haujlwm yam tsis muaj qhov hloov pauv yog lub teeb LED. Tsis tas li ntawd, txhua txhua xyoo cov qhov muag teev tau ci dua thiab muaj zog dua.
LED qhov muag teev ntev dua thiab siv zog tsawg dua li cov teeb pom kev zoo. Nyob rau hauv qhov tseeb, LED teeb kav tsuas yog 3-5 xyoo uas tsis yog 100 ntxiv rau xyoo rau cov qhov muag teev, tab sis lawv haus 90 feem pua tsawg zog.
Lumens thiab watts, uas txawv ntawm lub teeb rau lub teeb, feem ntau yog siv rau qib LED teeb pom kev zoo.
Qhov no txhais tau hais tias txhawm rau hloov kho qhov voltage thiab tam sim no ntawm LEDs thiab ua rau lawv ua haujlwm tau zoo, yuav tsum muaj ntau hom kev hloov pauv.
LED teeb muaj qhov ci ci dua li cov teeb pom kev zoo thiab siv lub zog tsawg dua. Tsis tas li ntawd, vim lawv tsis muaj mercury, tawg lawv yuav tsis ua rau hluav taws xob poob.
Uas tau hais tias, siv cov teeb ci LED tsis muaj qhov hloov pauv tsis pom zoo. Nws yog ib qho tsim nyog xav tias ntau tus neeg tau pib siv lub teeb ci LED hauv lawv lub tsev, tab sis lawv tau paub sai sai tias qhov no tsis yog lub tswv yim zoo tshaj plaws los txo lawv cov kev siv zog.
AC lossis DC hluav taws xob siv los ntawm LED teeb?
Nws yog ib qho tseem ceeb kom muaj peev xwm paub sai sai ntawm lub teeb lub zog. Paub seb lub teeb LED yog siv los ntawm AC lossis DC tam sim no yog qhov tseem ceeb yog tias koj muaj ib qho.
Kev nkag siab tias ob qhov sib txawv yuav ua rau koj ua tau zoo tshaj plaws ntawm koj lub teeb pom kev zoo.
Cov teeb pom kev zoo thiab lwm yam khoom siv teeb pom kev zoo, suav nrog cov teeb pom kev zoo hauv koj lub tsev thiab kev lag luam, nquag siv LED teeb pom kev zoo.
Txawm hais tias hluav taws xob tam sim no taug kev los ntawm cov xaim luv luv ua rau lub teeb los ntawm LED teeb, feem ntau ntawm lub zog xav tau los ntawm LED teeb yog muab los ntawm kev hloov tam sim no, lossis AC.
Txij li thaum lub teeb LED tuaj yeem qhib thiab tawm siv AC tam sim no, lub zog tsawg dua yog siv los teeb pom kev hauv chav dua li kev tswj hwm AC hluav taws xob.
Lub zog hluav taws xob uas yog AC lossis DC tuaj yeem siv los tswj ntau yam khoom siv LED.
AC feem ntau muab cov zis ntau tshaj plaws rau lub zog LEDs. DC muaj lub teeb pom kev tsawg heev thiab siv lub zog LED siv lub roj teeb.
Raws li qhov tshwm sim ntawm nws lub peev xwm los teeb pom kev hauv txhua qhov kev qhia, DC yog qhov zoo tagnrho rau kev teeb pom kev loj loj. Txawm li cas los xij, thaum ua haujlwm tsawg dua, DC LEDs yog tus nqi ntau dua li AC LEDs.
Vim li cas thawb rau tam sim no?
Tus nqi tam sim no uas muab rau LED txiav txim siab npaum li cas lub teeb (Lumens) nws tawm. Cov milliamps (mA) lossis amps (A) yog siv los ntsuas tam sim no.
LEDs nrog lub zog siab tuaj yeem tiv taus tam sim no ntawm 350 mA txog 3000 mA. Thaum xaiv ib qho LED thiab tus tsav tsheb, yuav tsum paub txog qhov kev hloov pauv ntawm cov kev ntsuas tam sim no ntawm LEDs.
Cov kev taw qhia uas tam sim no ib txwm ntws los ntawm qhov muaj peev xwm ntau dua (piv txwv li, txhua qhov chaw uas muaj hluav taws xob ntau) mus rau qhov qis dua (piv txwv li, qhov chaw uas muaj hluav taws xob tsawg). Tam sim no yog qhov txav ntawm hluav taws xob.
Lub ntiaj teb ua haujlwm los ntawm cov hluav taws xob ntws los ntawm lub peev xwm siab mus rau qhov muaj peev xwm tsawg thaum hluav taws xob siv rau qee qhov chaw, ua rau lawv cov conductors.
Thaum lub sij hawm tam sim no yog tus qauv kub rau kev txhim kho LED, lwm yam tseem ceeb kuj ua lub luag haujlwm hauv kev txhim kho LED li cas.
Kev ua tau zoo ntawm LED yog cuam tshuam los ntawm hom LED, hom substrate uas nws loj hlob, thiab txoj kev loj hlob. Nws yog ib qho tseem ceeb los kawm txog qhov cuam tshuam tam sim no li cas LEDs txhawm rau nkag siab txog cov teeb meem no.
Yuav xaiv LED Resistor li cas?
Dab tsi ntawm cov resistor koj xaiv yog ib qho kev txiav txim siab tseem ceeb tshaj plaws los ua thaum yuav LED teeb. Ib lub caij uas hloov hluav taws xob hluav taws xob mus rau lub zog thermal yog ib qho resistor.
Qhov hluav taws xob poob thoob plaws ib qho resistor yog qee zaum hu ua kev tiv thaiv vim nws lav tias lub teeb LED yuav ua haujlwm ntawm ib qho hluav taws xob.
Resistors, uas tuaj nyob rau hauv ntau ntau yam, yog siv los tswj tus nqi ntawm tam sim no mus rau hauv cov khoom xws li LEDs.
Hlau-oxide-semiconductor (MOSFET), uas zoo ib yam li cov me me transistor, yog hom resistor tshaj plaws.
Lub resistor yog positioned ntawm lub load uas yuav tsum tau energized thiab LED, uas yog lub hauv paus ntawm lub tam sim no. Yog li ntawd, tam sim no yuav yooj yim ntws los ntawm qhov chaw mus rau lub load, xws li ib tug LED.
Txoj kev uas cov LEDs sib sau ua ke yog ib yam uas yuav tsum tau coj mus rau hauv tus account. LED teeb pom kev zoo yog qhov zoo nkauj thiab ci ntsa iab, tab sis txawm tias cov LEDs siab tshaj plaws muaj qhov txwv tsis pub muaj sia nyob.
Lub neej ntev ntawm LED tsuas yog 3 mus rau 5 xyoos, thaum lub xov tooj ntawm lub xov tooj tsawg dua, tsuas yog 1 txog 2 xyoos xwb.
Qhov ntawd txhais tau tias hloov koj cov LEDs yuav raug nqi ntau dua li qhov koj xav tau. Nyob rau hauv lub teeb ntawm no, nws yog ib qho tseem ceeb los xaiv ib tug resistor uas nws lifespan yog sib xws nrog cov LED.
