LED tau tsim sai heev nyob rau hauv ntau daim ntawv thov teb nyob rau hauv xyoo tas los no, vim hais tias nws tsis muaj tshuaj lom, yog ib puag ncig tus phooj ywg, muaj ib tug ntev kev pab cuam lub neej, thiab muaj high optical efficiency.Hauv txoj kev xav, lub neej kev pab cuam ntawm LED yog kwv yees li 100,000 teev, tab sis nyob rau hauv tag nrho cov txheej txheem thov, qee tus neeg tsim teeb pom kev zoo LELED tsis paub txaus txog LED tsav tsheb hloov hluav taws xob lossis siv tsis tsim nyog, thiab qhov xaus ua rau lub neej ua haujlwm ntawm LED teeb pom kev zoo. cov khoom.
Vim lub uniqueness ntawm LED ntau lawm, ua thiab ntau lawm, tam sim no thiab kev khiav hauj lwm voltage yam ntxwv ntawm LEDs tsim los ntawm txawv manufacturers thiab txawm tib lub chaw tsim tshuaj paus nyob rau hauv tib batch ntawm cov khoom muaj ib tug zoo sib txawv.Noj 1W dawb lub teeb LED cov lus qhia tshwj xeeb thiab cov qauv ua piv txwv, raws li kev hloov pauv ntawm LED tam sim no thiab ua haujlwm voltage, nws tau piav qhia luv luv tias 1W lub teeb dawb feem ntau lees txais qhov ua haujlwm zoo ntawm li 3.0-3.6V.Txhawm rau kom ntseeg tau tias lub neej ua haujlwm ntawm 1WLED, cov chaw tsim khoom siv dav dav LED pom zoo tias lub Hoobkas teeb pom kev zoo siv tam sim no ntawm 350mA los tsav.Thaum lub zog tam sim no ntawm ob sab ntawm LED nce mus txog 350mah, lub zog ua haujlwm rau pem hauv ntej ntawm ob sab ntawm LED yuav tsis nce ntau, uas yuav ua rau kom muaj zog rau pem hauv ntej ntawm LED kom nce qhov muag teev LED, ua rau LED ambient kub rau hauv. ib kab sib npaug, yog li ua kom lub teeb ci LED.kev puas tsuaj, txo cov kev pab cuam lub neej ntawm LED.Vim yog qhov tshwj xeeb ntawm LED qhov kev khiav hauj lwm voltage thiab tam sim no hloov pauv, lub zog hloov hluav taws xob uas tsav LEDs yog tswj nruj me ntsis.
LED tsav switching fais fab mov yog lub hauv paus ntawm LED teeb.Nws zoo li tib neeg lub hlwb.Txhawm rau tsim cov teeb pom kev zoo LED, txoj hauv kev tsis tu ncua ntawm kev tsav tsheb LED yuav tsum tau tso tseg.
Nyob rau theem no, rau cov khoom siv teeb pom kev zoo LED tsim los ntawm ntau lub tuam txhab (xws li cov laj kab tiv thaiv, lub khob khob, cov teeb pom kev zoo, cov teeb nyom nyom, thiab lwm yam), xaiv cov resistors, txo cov ntshav siab, thiab tom qab ntawd ntxiv Zener diode Zener raj rau lub zog LED. muab qhov system, yog li txhawm rau txhawb nqa LED Txoj kev muaj qhov tsis zoo, ua ntej ntawm tag nrho cov, nws tsis muaj txiaj ntsig, siv ntau lub zog hluav taws xob ntawm cov kauj ruam-down resistor, thiab tej zaum yuav ntau tshaj qhov hluav taws xob hluav taws xob siv los ntawm LED, thiab tsis tuaj yeem. tsav cov dej ntws loj.Vim tias qhov siab dua tam sim no, lub zog ntau dua yog dissipated ntawm cov kauj ruam-down resistor, tsis muaj kev lees paub tias LED tam sim no yuav tsis tshaj nws cov qauv kev ua haujlwm.Thaum tsim cov khoom lag luam, xaiv los txo ob lub DC voltages ntawm LED tsav lub zog hluav taws xob yog qhov zoo tshaj plaws ntawm kev tso tseg ntawm LED chromaticity.Xaiv qhov kev tiv thaiv, txoj kev txo cov ntshav siab los thawb lub LED, lub vijtsam ci ntawm LED tsis tuaj yeem ruaj khov.Thaum lub hwj chim mov voltage ntawm lub hwj chim mov system yog tsawg, lub chromaticity ntawm lub LED yog tsaus, thiab thaum lub hwj chim mov voltage ntawm lub hwj chim mov system yog siab, lub chromaticity ntawm lub LED yog siab, thiab lub chromaticity ntawm lub LED yog. siab.Lawm, txoj kev txo cov ntshav siab yog qhov zoo tshaj plaws ntawm kev txo tus nqi qis.
Post lub sij hawm: Lub Xya hli ntuj-28-2022