Nrhiav kom muaj lub zog hluav taws xob zoo rau koj lub LEDs yog qhov tseem ceeb txawm tias koj tab tom tsim koj tus kheej LED fixture, kho thiab rov kho qhov khoom uas twb muaj lawm, lossis yuav cov teeb ci LED tshiab. Rau koj cov LEDs ua haujlwm kom raug, koj yuav xav tau qhov hluav taws xob tsis tu ncua lossis ib tus tsav tsheb tam sim no, lossis kev sib xyaw ntawm ob. Thaum xaiv lub zog hluav taws xob rau LED teeb pom kev zoo, muaj ntau yam los coj mus rau hauv tus account. Kab lus no yuav dhau mus dhau tag nrho cov kev hloov pauv no thiab pab koj xaiv lub zog zoo tshaj plaws rau koj lub LEDs.
Txhawm rau kom tsis txhob overdriven, feem ntau ntawm LEDs yuav tsum muaj tam sim no - txwv cov cuab yeej, uas tej zaum yuav yog cov resistors lossis tus tsav tsheb. Los ntawm kev tswj cov tam sim no ntws mus rau LEDs, tus tsav tsheb tam sim no tsis tu ncua lossis tam sim no txwv tsis pub ua kom lawv khiav lag luam nyab xeeb thiab ncua lawv txoj sia. Raws li LEDs cua sov, lawv cov khoom hluav taws xob hloov pauv; yog tias tam sim no tsis tswj tau, lawv yuav thaum kawg kos cov nqi tam sim no ntau dhau. Lub teeb ci LED yuav kawg ua tsis tiav vim muaj cua sov sab hauv los ntawm qhov tam sim no overdraw, uas yuav ua rau lub teeb ci sib txawv. Koj yuav xav tau lub cuab yeej tam sim no hauv koj lub cev txawm tias koj tab tom tsim koj tus kheej LED fixture los yog siv ib qho ntawm peb lub hnub qub LEDs. Cov tsav tsheb lossis cov resistors los tswj qhov tam sim no twb muaj nyob rau hauv feem ntau ntawm cov khoom ua tiav LED lossis LED sawb teeb (uas koj yuav yuav ncaj qha los ntawm lub khw). Koj tuaj yeem paub yog tias koj xav tau cov khoom tam sim no tsis tu ncua los ntawm kev nyeem cov ntawv tshaj tawm no. Nrhiav tus tsav tsheb yog thawj kauj ruam yog tias koj tsis muaj lub cuab yeej txwv tam sim no. Yog tias koj cov khoom lag luam LED tam sim no muaj kev tswj hwm tam sim no, koj tuaj yeem siv nplooj ntawv no los nrhiav cov khoom siv hluav taws xob nrog qhov hluav taws xob tas li.
Cov khoom siv hluav taws xob tsis tu ncua
LED teeb uas twb tau nruab nrog cov resistors lossis cov tsav tsheb tam sim no tuaj yeem siv tau los ntawm lub zog hluav taws xob tas li. Ib qho DC voltage tsis tu ncua feem ntau xav tau rau cov khoom no. Koj muaj hmoo yog tias koj siv lub roj teeb los ua lub zog koj lub teeb lossis yog tias koj muaj DC tsis tu ncua uas txaus rau lawv. Qhov no tsis tshua muaj tshwm sim, thiab koj yuav xav tau lub zog hluav taws xob los hloov koj cov hluav taws xob mus rau qhov muaj kev nyab xeeb DC rau koj lub teeb. Yog tias koj yuav tsum muab LED flex strips rau hauv koj lub tsheb, piv txwv li, koj yuav tsis xav tau lub zog hluav taws xob vim tias lawv tuaj nrog rau ntawm -board tam sim no limiting resistors. Lub tsheb roj teeb tso tawm 12VDC, muab lossis nqa. Koj lub teeb yuav tau muab tag nrho los ntawm lub roj teeb lub zog 12V. Txawm li cas los xij, yuav tsum muaj AC rau DC converter txhawm rau txhawm rau muab cov hlua khi rau hauv tsev. Lub converter no yuav tsum muaj peev xwm hloov tau qhov hluav taws xob hauv tsev ib txwm muaj ntawm 120VAC rau 12VDC.
Yuav Ua Li Cas Xaiv Qhov Kev Siv Hluav Taws Xob?
Yog li ntawd, koj xav tau lub hwj chim ntawm qee yam uas tuaj yeem hloov koj lub tsev AC voltage mus rau DC voltage. Nrhiav lub zog zoo tshaj plaws rau koj qhov kev xav tau muaj ntau yam kev xav. Kev kaw cov hluav taws xob uas peb xav tau los ntawm peb lub zog yuav tsum yog peb qhov tseem ceeb tshaj plaws.
Wattage
Txhawm rau pib, nrhiav seb koj lub teeb yuav siv pes tsawg watts. Yog tias koj vam tias yuav khiav ntau tshaj ib lub teeb tawm ntawm ib lub hwj chim, koj yuav tsum suav cov wattages mus nrhiav tag nrho cov watts siv. Nco ntsoov kom muaj lub zog loj txaus los ntawm kev muab koj tus kheej 20% cushion tshaj tag nrho cov wattage koj xam los ntawm koj cov LEDs. Qhov no tuaj yeem ua tau yooj yim los ntawm kev muab koj cov wattage tag nrho los ntawm 1.2 thiab tom qab ntawd nrhiav cov khoom siv hluav taws xob rau qhov wattage.
Hais piv txwv li peb muaj 4 khiav ntawm LED strips uas khiav ntawm txog 12 watts txhua. Tsuas yog muab cov no yuav qhia tau tias peb lub zog wattage yuav tsum nyob ib ncig ntawm 48 Watts. Tam sim no peb tuaj yeem ntxiv 20% pom zoo cushion nrog 48 x 1.2=57.6 Watts. Lub hwj chim 60-Watt (los yog siab dua) yuav txaus rau qhov project no.
Voltage / Tam sim no
Nws yog ib qho tseem ceeb kom paub meej tias qhov tso zis hluav taws xob tau sib haum nrog LED qhov hluav taws xob ua ntej tsim lub teeb pom kev zoo LED lossis hloov cov khoom siv hluav taws xob tsis zoo. Thaum nws los txiav txim siab qhov tsim nyog input voltage, LED kev daws teeb meem nrog kev tswj hwm tam sim no feem ntau zoo dua. Piv txwv li, peb cov LED flex strips yuav siv los ntawm 12V mov raws li qhov lawv xav tau.
Siv lub zog siab LEDs nrog cov tsav tsheb tam sim no uas xav tau DC voltage input yog lwm qhov kev siv nrov. Wb hais tias Mean Well LDD-H tsav tsheb muaj zog rau Cree LEDs. Txog 3.1 volts yog xav tau los khiav txhua lub LED. Nyob rau hauv no series Circuit Court, peb yuav muaj tag nrho cov voltage ntawm 18.6VDC nrog rau ntawm lawv. Cov tsav tsheb tsis tshua muaj hluav taws xob, xws li Mean Well LDD-H, feem ntau ua haujlwm zoo dua thaum koj muaj me ntsis ntawm qhov hluav taws xob uas lawv xav tau. Kuv xav tau lub zog hluav taws xob uas tso tawm tsawg kawg 24VDC rau qhov kev teeb tsa no. Nco ntsoov tias koj yuav tsum nco ntsoov paub tseeb tias tus tsav hluav taws xob tsawg uas koj siv -qhov no, Mean Well LDD-H- yog ntsuas rau qhov hluav taws xob uas koj xav tau nkag. Peb raug them rau qhov no vim tias Mean Well LDD{15}}H tuaj yeem txais 9–56VDC. Kawm paub ntxiv txog yuav ua li cas txiav txim siab koj qhov voltage hauv ntau lub circuits ntawm no.
Tsis tas li ntawd, paub meej tias lub zog hluav taws xob koj xaiv muaj peev xwm tuav koj lub zog tawm tswv yim. Qhov twg koj nyob hauv lub ntiaj teb yuav cuam tshuam cov kab hluav taws xob. Txheeb xyuas yog tias koj muaj siab - kab AC fais fab (200-240VAC) lossis qis-kab AC fais fab (90-120VAC). Ntau cov khoom siv hluav taws xob, zoo li cov tsim los ntawm Mean Well, raug ntsuas rau tag nrho cov khoom, tab sis nws ib txwm muaj txiaj ntsig kom paub tias koj cov tswv yim AC yog dab tsi yog li koj tuaj yeem paub tseeb tias lub hwj chim koj xaiv yog tsim nyog rau nws.
Dimmable LED Fais Fab Khoom
Nco ntsoov tias koj xaiv lub hwj huam mov nrog lub peev xwm dimming yog tias koj cov LEDs yog dimmable thiab koj xav hloov lawv qhov ci. Lub hwj chim qhov chaw dimmability thiab hom dimmer tswj nws siv yuav tsum tau teev nyob rau hauv lub hwj huam mov specifications. Kuv yuav tshuaj xyuas ob hom kev tswj xyuas sai sai:
PWM Dimming:Tag nrho cov khoom siv hluav taws xob tuaj yeem siv cov mem tes -width modulation dimming, raws li nws tseem hu ua. Phab ntsa-mounted lossis tej thaj chaw deb PWM dimmers tuaj yeem siv los dim txawm tias lub hwj chim ntawm peb lub vev xaib uas tsis hais tshwj xeeb "dimmable" hauv cov lus qhia tshwj xeeb. Qhov no tshwm sim los ntawm PWM dimmers dimming ntawm lub Circuit Court 12VDC sab nyob rau hauv txoj kab nrog lub teeb sawb. Txhawm rau hloov lub teeb pom kev zoo li cas rau lub qhov muag tsis pom kev, PWM dimmers tiag tiag pulse lub teeb ntawm lub siab zaus. Lawv yuav ci ntsa iab ntawm ntau zaus.
TRIAC Dimming:LEDs tuaj yeem dimmed siv cov pa dimmers ua tsaug rau hom dimming. Koj yuav tsum tau tshuaj xyuas cov kev qhia tshwj xeeb kom paub tseeb tias lub zog hluav taws xob tsim nyog rau kev hloov tam sim no (TRIAC) dimming. Magnitude Dimmable Power Supplies yog ib qho ntawm peb cov khoom tam sim no uas muab kev tswj dimming xws li cov no. Los ntawm kev siv TRIAC dimmer, cov khoom siv fais fab no kho lub zog ntawm AC sab ntawm lub voj voog. Qhov hluav taws xob ntawm DC tso zis yuav hloov pauv thiab LEDs lub teeb ci yuav raug tswj los ntawm kev hloov hluav taws xob uas lub dimmer ua rau ntawm AC input sab. Cov khw muag khoom kho vajtse feem ntau muaj TRIAC dimmers. Lutron thiab Leviton yog cov zoo tshaj plaws -paub thiab zoo- cov npe nrov.
Kub thiab huab cua
Qhov chaw thiab ib puag ncig uas koj lub zog yuav raug siv yog qhov tseem ceeb uas yuav tsum tsis txhob muab pov tseg. Thaum cov khoom siv hluav taws xob ua haujlwm nyob rau hauv lawv qhov kub thiab txias, lawv ua tau zoo tshaj plaws. Kev nyab xeeb kev ua haujlwm kub yuav tsum suav nrog hauv cov khoom siv hluav taws xob tshwj xeeb. Kev ua haujlwm nyob rau hauv qhov no yog qhov zoo tagnrho, thiab koj yuav tsum tsis txhob tso koj lub hwj chim tso rau hauv ib qho chaw uas muaj cua sov tuaj yeem tsim thiab ua rau nws nce siab tshaj qhov ua haujlwm siab tshaj plaws. Muab lub hwj chim tso rau hauv ib lub thawv me me uas tsis muaj qhov cua tshuab feem ntau yog lub tswv yim phem. Qhov no thaum kawg yuav ua rau lub zog hluav taws xob tau overheated vim qhov tsub zuj zuj ntawm txawm tias qhov me me ntawm cov cua sov tsim los ntawm qhov chaw. Yog li ntawd, xyuas kom tseeb tias qhov kub thiab txias tsis dhau los yog qis dhau thiab qhov kub tsis sib sau mus rau qhov txaus ntshai.
Ib qho kev nkag siab -kev tiv thaiv (IP) qhov ntsuas kuj tseem yuav raug muab rau txhua lub zog LED. Ib tus lej ob - tus lej uas sawv cev rau qhov loj ntawm cov khoom thiab qhov siab ntawm cov kua dej uas lub zog hluav taws xob tuaj yeem tiv taus qhov ntsuas IP. Chav tsev kam rau siab rau cov khib nyiab yog qhia los ntawm thawj tus lej, thaum nws kam rau ua kua yog qhia los ntawm qhov thib ob. Kev tiv thaiv qib nce nrog txhua tus lej. Cov khoom yog tiv thaiv los ntawm cov khoom me me (txog rau cov hmoov av) raws li thawj tus lej nce, txo qis qhov yuav ua rau txhua yam nkag mus thiab ua rau nws puas tsuaj. Cov khoom yog tam sim no tiv thaiv nyob rau hauv tag nrho immersion as opposed rau tsuas yog me me los nag raws li tus thib ob tus naj npawb nce. Xyuas kom tseeb tias koj lub hwj huam mov muaj qhov ntsuas IP uas yuav tiv thaiv koj qhov chaw los ntawm ib puag ncig nws yuav nyob hauv los ntawm saib cov lus muaj txiaj ntsig hauv qab no.
Kev ua tau zoo
Tus nqi hluav taws xob uas tiag tiag mus rau hauv kev tig ntawm LED yog qhia los ntawm lub hwj chim mov qhov ua tau zoo. Qhov hluav taws xob ntau dua koj txuag, lub zog hluav taws xob ntau dua qhov ua tau zoo %. Lub zog hluav taws xob nrog 80% kev ua haujlwm lossis siab dua yog qhov kev xaiv ntse rau cov ntawv thov LED. Nrog rau kev ntsuas kev ua tau zoo nyob deb mus rau 90 feem pua, Txhais tau deb thiab Phihong fais fab mov yog qhov kev xaiv pheej yig tshaj plaws.
Loj
Paub qhov twg lub hwj huam mov yuav haum los yog muab tso yog qhov tseem ceeb thaum xaiv ib qho rau koj qhov project LED. Nws yuav tsum yog me me kom haum rau hauv qhov chaw xaiv yog tias koj xav muab nws tso rau hauv cov khoom koj tsim. Nws yuav tsum muaj qhov kev xaiv mount nyob ze yog tias nws nyob sab nraum qhov program. Txhawm rau ua kom tau raws li koj qhov xav tau, ntau yam khoom siv hluav taws xob muaj nyob rau hauv ntau qhov ntau thiab tsawg.
Class II or Class 2??
Tam sim no peb tab tom ze rau qhov kawg ntawm peb txoj kev kawm ntawm LED fais fab mov, cia peb paub tseeb tias peb tuav ob qhov kev ntsuas no vim lawv feem ntau tsis meej pem. A Class 2 fais fab mov txaus siab Standard UL 1310 cov qauv thiab ua raws li National Electric Code's (NEC) tswj cov qib hluav taws xob. Class 2 fais fab mov tuaj yeem muab tau txog li 100 watts ntawm 60VDC. Cov khoom siv hluav taws xob hauv chav kawm 2 tsis tuaj yeem siv hluav taws xob ntau npaum li LEDs li cov neeg sab nraud ntawm lawv pawg vim lawv lub zog qis. Lub sijhawm no, koj yuav tsum txiav txim siab seb koj puas xav siv Chav Kawm 2 fais fab mov, uas muaj kev nyab xeeb tiv thaiv hluav taws xob thiab hluav taws kub, lossis khiav deb dua los ntawm ib lub zog hluav taws xob.
Hauv kev muaj tiag, Class II kev faib tawm tsuas yog txhais tau hais tias cov khoom siv hluav taws xob thiab cov khoom siv hluav taws xob yog ob npaug insulated. Vim tias Class II tsav tsheb tsis xav tau kev sib txuas hauv av, lawv tau siv dav.
