Vim li cas LEDs flicker - thiab yuav ua li cas kom tsis txhob tshwm sim
Vim li cas FLICKER LEDS?
Tag nrho cov khoom siv hluav taws xob uas siv hluav taws xob flicker, txawm tias lawv yog incandescent, roj, fluorescent, lossis LED, txawm tias koj yuav tsis pom nws ib txwm.
Hauv UK, lub zog loj yog muab los ua qhov hloov pauv tam sim no (AC) nrog 50 hertz zaus. Qhov no qhia tau hais tias 50 zaug hauv ib ob, cov hluav taws xob tam sim no uas ua rau koj lub teeb-lossis ib lub teeb-hloov rov qab mus rau pem hauv ntej.
Nrog rau peb lub teeb incandescent qub, peb tsis paub txog nws vim tias cov filament tseem ci ntawm flickers ua tsaug rau lub teeb qhov seem ntawm cov cua sov. Qhov no yog ib tug byproduct ntawm yuav ua li cas ineffective pa taws teeb. Nyob ib ncig ntawm 90 feem pua ntawm lub zog siv los ntawm cov teeb pom kev qub qub no tau ploj mus ua cua sov!
Nov yog yuav ua li cas siv daim kab xev dawb dawb tsis muaj flickering.
Yog li cia peb dispel ib tug dab neeg ua ntej peb pib sib tham no. Qee tus neeg xav tias LED flicker tuaj yeem raug tshem tawm tag nrho ntev npaum li lub zog tawm tswv yim (tam sim no thiab qhov hluav taws xob) nyob twj ywm vim tias LED flicker yog qhov tshwm sim ntawm koj cov khoom siv hluav taws xob.
Qhov ntawd tsis muaj tseeb. Txhua lub hauv paus-powered lub teeb ci flickers tsis tu ncua.
Tab sis vim li cas qee cov neeg ntseeg tias FLICKERING LEDs yog qhov teeb meem yog tias txhua lub teeb FLICKER?
Flickering LEDs tau siv los ua qhov teeb meem tsis tu ncua. Qhov no yog vim tias LEDs tsis muaj kev ua siab ntev, sib piv rau cov teeb pom kev zoo, halogens, thiab fluorescent teeb. Thaum lub LED lub zog hluav taws xob raug kaw, lub teeb emission xaus tam sim ntawd. Yog li ntawd, ib qho LED yuav qhib thiab tawm 50 zaug hauv ib ob yog tias nws txuas ncaj qha rau AC lub zog hluav taws xob, uas txaus rau nws pom rau tib neeg lub qhov muag.
Hauv lawv lub tswv yim, LEDs hloov pauv ntau dua li qhov chaw teeb pom kev zoo vim qhov no. Qhov ntawd yeej muaj tseeb yav tas los. Tab sis qhov ntawd tsis muaj tseeb tam sim no.
Niaj hnub nimno LED installation pib tsis ntsib teeb meem nrog LED flicker. Qhov no yog vim qhov tseeb tias peb tsis txuas cov LEDs ncaj qha mus rau lub mains mov. Hloov chaw, peb siv tus tsav tsheb LED uas tau tsim tshwj xeeb rau lub hwj chim teeb.
YUAV UA LI CAS YUAV TSUM TAU TXAIS LED HLOOV TSHUAJ tuaj yeem daws teeb meem LED FLICKER: Ua kom pom qhov muag ntawm koj cov LEDs
Direct tam sim no (DC) es tsis yog AC lub zog yog xav tau los ua haujlwm LED teeb pom kev zoo. Qhov no yog xov xwm zoo vim tias hom hluav taws xob uas koj siv los tsav koj lub teeb yog tus yuam sij rau tshem tawm LED flicker.
Txawm hais tias cov khoom siv hluav taws xob (tseem hu ua "tsav tsheb") feem ntau raug xa mus rau hauv kev lag luam teeb pom kev zoo li "LED transformers," lawv muaj ntau tshaj qhov ntawd. Lub hwj chim tsis yog tsuas yog nqis los (hloov) los ntawm tus tsav tsheb LED. Tsis tas li ntawd, nws hloov AC mains tam sim no rau DC. Xaiv qhov zoo tshaj plaws LED lub zog los muab koj cov LEDs ib txwm muaj tam sim no. Yog li ntawd, koj yuav tau txais illumination uas tsis flicker.
Txawm li cas los xij, tus tsav tsheb qis qis, yooj yim LED tsis xa cov tam sim no tsis tu ncua. Nws tsuas yog hloov cov kev taw qhia tam sim no los ntawm AC mus rau DC. Daim ntawv no yooj yim tshaj plaws ntawm cov khoom siv hluav taws xob hloov pauv tau ua rau lub oscillating tam sim no, txawm tias nws feem ntau ua ob npaug ntawm qhov zaus ntawm cov khoom siv hluav taws xob. Qhov ntawd yuav tsim qhov zaus ntawm 100 qhov ua tau flickers ib pliag hauv UK.
Tau kawg, 100 flickers ib ob yog zoo dua li 50. Tab sis nws puas tseem zoo li teeb meem? Hmoov zoo, nws tsis tshua muaj teeb meem vim tias tib neeg lub zeem muag tsis nkag siab txaus los ntes nws. Peb feem ntau tsuas pom lub teeb sib txawv ntawm qhov nrawm ntawm 50 lossis tsawg dua ib ob, uas yog qis dua 100 flickers ib thib ob. (Peb tsis tshua pom qhov raug flickering ntawm lub computer screen, uas tshwm sim ntawm 60 thiab 70 hertz.)
Yog li txawm tias cov neeg tsawg tsawg ntawm cov tib neeg tuaj yeem tsis ntseeg pom kev nrawm dua, nws tsis cuam tshuam rau feem coob ntawm peb. Ib qho yooj yim, tsis muaj frills LED "transformer" feem ntau yog txhua yam koj xav tau rau kev teeb tsa qhov project. Txawm tias qee qhov kev siv, xws li oscillating tsheb kauj vab teeb lossis hmo ntuj, tuaj yeem siv LED flicker raws li qhov xav tau.
txo cov haujlwm
CONSTANT BRIGHTNESS plus CONSTANT CURRENT
Lub zog hluav taws xob tas mus li tam sim no yuav yog qhov hloov pauv zoo rau koj yog tias lub zog hluav taws xob ncaj qha LED tsis txaus rau koj qhov project.
Los ntawm kev sib txawv ntawm qhov hluav taws xob thoob plaws hauv Circuit Court los tsim hluav taws xob tas li, cov tsav tsheb LED siab dua tuaj yeem tshem tawm flicker. Qhov no txo qis qhov cuam tshuam ntawm AC / DC hloov dua siab tshiab los ntawm kev ua kom ntseeg tau tias tam sim no xa mus rau koj cov LEDs tsis hloov pauv.
Txawm hais tias tus tsav tsheb LED tsis tu ncua yuav tsis tuaj yeem tshem tawm tag nrho cov flicker hauv qee qhov xwm txheej. Ua ntej txhim kho, xyuas kom tseeb tias koj cov khoom siv LED tau sib xws nrog cov tswj Circuit Court thiab lub zog hluav taws xob uas koj siv. Ib qho laj thawj ntawm kev cuam tshuam yog teeb meem nrog koj lub circuitry tswj.
FLICKER raws li ib txwm muaj - mloog cov lus ceeb toom!
Yog tias kev cuam tshuam lossis kev tsis sib haum xeeb yog qhov ua rau koj flickering LEDs, qhov cuam tshuam flicker yuav tsis sib npaug. Tab sis nws muaj peev xwm uas tsis yog qhov teeb meem koj muaj. Nws yog qhov ua tau heev uas koj lub teeb tau siv lub zog ntau dua li koj tus tsav tsheb LED tau tsim los muab yog tias lawv flickering tsis tu ncua, lub suab nrov (txhua ob, piv txwv).
Qhov no yog li cas cov khoom siv hluav taws xob zoo LED ua tau zoo; lub flickering ua haujlwm ceev faj. Yog tias koj cov LEDs nquag flicker, koj yuav tsum tau hloov mus rau qhov muaj peev xwm ntau dua (lossis ob peb qhov me dua).
Teeb meem kuj tuaj yeem tshwm sim los ntawm kev xoob cabling thiab lwm yam kev sib txuas tsis zoo.
Koj lub dimmer LED yuav overheating yog tias koj muaj ob peb lub tshuab hluav taws xob tau teeb tsa nyob ze rau ib leeg (ntawm tib lub switchplate, piv txwv li) (s). Intermittent flashing feem ntau yuav tshwm sim los ntawm qhov no.
Rau kev siv cov yeeb yaj kiab (xws li TV studios, theatre, thiab lwm yam), LEDs xav tau cov khoom siv nrog cov zaus thiab cov kev daws teeb meem siab. Tus neeg tsav tsheb ib txwm tsis tuaj yeem ua qhov no.
Kev tswj ntawm DIMMERING
Txawm hais tias nyob rau hauv ib qho kev siv ntawm LED teeb pom kev zoo uas yog txwv tsis pub, dimming tuaj yeem ua rau muaj teeb meem. Qhov no yog vim lub fact tias cov tsoos dimmers txo tag nrho cov khoom ntawm lub teeb tso zis los ntawm lengthening "tawm" feem ntawm txhua on-off flicker voj voog.
Lub sij hawm rau txoj kev no yog pulse width modulation (PWM). Tsuav qhov kev hloov pauv tsis poob qis dua qhov tib neeg lub qhov muag tuaj yeem ntes tau, PWM muaj txiaj ntsig zoo.
Txhawm rau daws qhov teeb meem no, qee cov neeg tsim khoom tau tsim LED dimmers nrog lub voj voog luv luv. Lub sijhawm xav tau yog ib txhiab hertz voj voog. Qhov no yuav ua raws li txoj hauv kev coj los ntawm hluav taws xob ballasts, uas tau siv lub teeb fluorescent ntev. Txawm li cas los xij, muaj qhov tsis zoo: qhov ze koj lub LEDs yuav tsum yog rau koj lub transformer, qhov ntau dua qhov flicker zaus. Tej zaum yuav tsis muaj txiaj ntsig.
Koj tuaj yeem yooj yim khiav tawm qhov pom tseeb flicker tshwm sim los ntawm pulse width modulation yam tsis tas yuav nruab cov dimmers tsawg dua (thiab kim dua). Koj tuaj yeem zam koj cov LEDs 'flicker voj voog ua kom pom tseeb rau lub qhov muag los ntawm tsuas yog tsis dimming lawv qis.
Qhov ntawd feem ntau txhais tau tias tsis dimming hauv qab li 50 feem pua ntawm tag nrho cov ci ci tsuas yog ob peb xyoos dhau los. Cov dimmers hauv peb cov kab ke tam sim no, txawm li cas los xij, txhua tus muab kev ywj pheej ntau rau koj. Tej zaum koj yuav pom tias tsis muaj qhov pom meej flicker txawm tias koj dim txhua txoj kev!
Txoj kev nyiam rau xoom-rau-10V dimmers rau flash feem ntau yuav qis dua, hais, lub ntsiab TRIAC tswj.
TSEEM CEEB - YUAV UA LI CAS FLICKERING LEDS
Lub lag luam teeb pom kev zoo tau lees txais LEDs ua qhov kev daws teeb meem hluav taws xob hluav taws xob yuav tshwm sim hauv kaum xyoo dhau los. Qhov ntawd tsis yog qhov xav tsis thoob vim txhua qhov txiaj ntsig lawv muab.
Koj thiab koj tus kws kho hluav taws xob, txawm li cas los xij, yuav xav tau kev nkag siab zoo ntawm cov teeb meem hauv qab LED flicker txhawm rau tiv thaiv nws qhov tsis zoo. Yog li nco ntsoov nco ntsoov cov hauv qab no:
1. Tsuas yog ib txwm siv lub zog LED ua rau kev tsav tsheb LED khoom. Kev siv tsis zoo ntawm LED bands siv los ntawm mains AC yuav tsum tsis txhob siv!
2. Xyuas kom tseeb tias tag nrho koj cov khoom siv LED yog sib xws nrog lub zog hluav taws xob thiab cov khoom siv hluav taws xob uas koj siv.
3. Tshawb xyuas cov xaim hluav taws xob rau kev tawg hauv lwm qhov txuas. Tsis tas li ntawd, xyuas seb koj cov dimmers LED tsis dhau dhau lawm.
4. Xav txog kev siv tus tsav tsheb LED nrog lub zog tas li.
5. Ua cov kev ntsuam xyuas los txiav txim seb puas muaj qhov tsawg kawg nkaus dimming qib hauv qab no uas koj yuav tsum tsis txhob siv lub tshuab dimmer.
6. Raws li ib qho kev xaiv rau TRIAC dimming systems, xav txog kev siv xoom-rau -10V los yog digital volt-dimming system.
Yog xav paub ntxiv, thov ua tib zoo mloogBENWEI official lub vev xaib!
