Dab tsi yog cov yam ntxwv ntawm LED qhov muag teev?
Txawm hais tias LED teeb yog me me, lawv siv tau. Qhov tseem ceeb tshaj plaws luminous qauv ntawm LED (Light Emitting Diode) teeb yog lub teeb hlaws qhov loj ntawm mung taum. Muaj qhov sib txawv loj nrog cov teeb pom kev zoo ib txwm muaj, yog li dab tsi yog lub hauv paus ntsiab lus ntawm cov teeb pom kev zoo? Dab tsi yog cov yam ntxwv ntawm diode qhov muag teev? Don'tsis txhawj, BENWEI LIGHTING nyob ntawm no los piav qhia rau sawv daws, cia's saib.
coj teeb
Txoj cai ntawm LED teeb:
Los ntawm qhov pom ntawm lub cev: thaum tam sim no dhau los ntawm wafer, cov electrons nyob rau hauv N-hom semiconductor thiab lub qhov nyob rau hauv P-hom semiconductor quab yuam sib tsoo thiab recombine nyob rau hauv lub teeb-emitting txheej los tsim photons, uas emit zog nyob rau hauv daim ntawv ntawm photons (uas yog, lub teeb uas sawv daws pom). LED tseem hu ua lub teeb-emitting diode, nws lub cev yog me me thiab tsis yooj yim, nws tsis yooj yim rau siv ncaj qha. Yog li tus tsim tsim tau ntxiv lub plhaub tiv thaiv rau nws thiab muab ntim rau hauv, yog li tsim ib qho yooj yim-rau-siv LED hlaws hlaws.
Qhov rov qab tawg voltage ntawm lub teeb-emitting diode yog hais txog 5 volts. Nws cov volt-ampere yam ntxwv nkhaus yog qhov khov heev, thiab tam sim no-txheej resistor yuav tsum tau txuas nrog hauv cov koob los tswj cov tam sim no los ntawm lub raj. Tam sim no-limiting resistance R tuaj yeem xam los ntawm cov qauv hauv qab no:
R=(E－UF)/IF
Qhov twg E yog lub hwj chim mov voltage, UF yog lub pem hauv ntej voltage poob ntawm lub LED, thiab IF yog cov kev khiav hauj lwm tam sim no ntawm lub LED. Qhov ntev ntawm ib qho ntawm ob qho kev coj ntawm lub teeb-emitting diode yog lub anode, uas yuav tsum yog lub anode ntawm lub hwj chim mov. Ob tug coj ntawm qee lub teeb-emitting diodes yog tib qhov ntev, tab sis muaj tus nplaig me me ntawm lub plhaub, thiab cov hlau lead ze ntawm tus nplaig me me yog qhov zoo electrode.
Piv nrog rau cov qij me me thiab cov teeb neon, cov yam ntxwv ntawm lub teeb-emitting diodes yog: tsis tshua muaj hluav taws xob ua haujlwm (qee qhov tsuas yog ob peb volts); me me ua haujlwm tam sim no (qee qhov tsuas yog ob peb feem kaum ntawm milliamp tuaj yeem tawm teeb pom kev); poob siab thiab poob siab tsis kam ua haujlwm zoo, muaj kev ntseeg siab, thiab lub neej ntev; qhov kev siv ntawm luminescence tuaj yeem hloov kho tau yooj yim los ntawm kev hloov kho qhov kev siv ntawm tam sim no dhau los. Vim yog cov yam ntxwv no, lub teeb-emitting diodes yog siv los ua lub teeb ci hauv qee cov khoom siv hluav taws xob tswj hluav taws xob, thiab ua cov teeb liab qhia hauv ntau cov khoom siv hluav taws xob. Lub raj tub ntxhais yog tsim rau hauv ib daim hlab, thiab 7 strips ntawm lub teeb-emitting raj yog siv los ua ib tug 7-seg semiconductor nixie raj, txhua nixie raj tuaj yeem tso saib 0-9 kaum tus lej.
coj teeb
Dab tsi yog cov yam ntxwv ntawm diode qhov muag teev?
1. Voltage: LED siv lub tshuab hluav taws xob qis, qhov hluav taws xob hluav taws xob yog nyob nruab nrab ntawm 6-24V, nyob ntawm cov khoom, yog li nws yog lub zog hluav taws xob muaj kev nyab xeeb dua li kev siv cov khoom siv hluav taws xob siab, tshwj xeeb tshaj yog tsim rau cov pej xeem. .
2. Kev ua tau zoo: Kev siv hluav taws xob txo qis los ntawm 80% piv nrog cov teeb pom kev zoo tib yam luminous efficiency
3. Kev siv tau: me me, txhua chav LED nti yog 3-5mm square, yog li nws tuaj yeem npaj rau hauv ntau yam duab ntawm cov khoom siv, thiab tsim nyog rau qhov chaw sib txawv.
4. Kev ruaj ntseg: 100,000 teev, lub teeb lwj yog 50% ntawm qhov pib
5. Lub sij hawm teb: lub sij hawm teb ntawm lub teeb incandescent yog milliseconds, thiab lub sij hawm teb ntawm LED teeb yog nanoseconds
6. Ib puag ncig muaj kuab paug: tsis muaj teeb meem hlau mercury
7. Xim: hloov tam sim no tuaj yeem hloov xim. Lub teeb-emitting diode tuaj yeem hloov kho lub zog band qauv thiab qhov sib txawv ntawm cov khoom siv los ntawm kev hloov kho tshuaj kom ua tiav lub teeb liab, daj, ntsuab, xiav, thiab txiv kab ntxwv ntau xim. Piv txwv li, lub teeb liab LED ntawm qhov qis tam sim no tuaj yeem hloov mus rau txiv kab ntxwv, daj, thiab thaum kawg ntsuab raws li tam sim no nce.
8. Nqe: LEDs kim dua. Piv nrog rau cov teeb incandescent, tus nqi ntawm ob peb LEDs tuaj yeem sib npaug ntawm lub teeb incandescent. Feem ntau, txhua pab pawg teeb liab teeb yuav tsum muaj 300-500 diodes.
coj teeb
Cov saum toj no yog qhov kev piav qhia ntawm kev paub txog lub teeb-emitting txoj cai ntawm lub teeb coj thiab cov yam ntxwv ntawm lub teeb diode.
