Vim lawv lub neej ntev, kev siv hluav taws xob, thiab sleek, niaj hnub zoo li,LED downlightsyog qhov kev xaiv nrov rau ob lub tsev thiab kev lag luam. Txawm li cas los xij, flickering - uas grating pulsing lossis flashing ntawm lub teeb - yog ib qho teeb meem tsis kaj siab uas ntau tus neeg ntsib. Ntxiv nrog rau qhov tsis pom kev, nws tuaj yeem ua rau mob taub hau, qhov muag pom, thiab txawm tias txo qis kev tsim khoom hauv chaw ua haujlwm. Yog li ntawd, dab tsi ua rau LED downlights flicker thiab yuav kho li cas? Peb mam li nthuav tawm nws hauv cov ntawv blog no nrog ntau cov lus nug nquag nug thiab cov lus teb meej, muab cov lus qhia meej, muaj txiaj ntsig zoo rau kev nkag siab thiab kho LED flickering. Cia peb pib.
Vim li cas LED Flickering tshwm sim thiab nws yog dab tsi?
Teb: Cov kev hloov pauv nrawm los sis tsis sib xws hauv lub teeb siv, xws li los ntawm cov pulses faint pulses mus rau blatant strobing, yog hu ua LED flickering. LEDs (Lub Teeb Emitting Diodes) siv hluav taws xob tsav tsheb los hloov qhov hloov pauv tam sim no (AC) los ntawm koj lub tsev hluav taws xob rau hauv qhov hluav taws xob ncaj qha (DC), qhov sib txawv ntawm cov teeb pom kev zoo, uas ci tsis tu ncua vim cov cua sov filaments. Flickering yog tshwm sim los ntawm kev cuam tshuam nyob rau hauv txoj kev uas cov tsav tsheb tswj voltage thiab tam sim no.
Ib puag ncig hloov pauv, qhov chaw sib txuas, lossis hluav taws xob tsis sib haum yog feem ntau ua rau flickering. Piv txwv li, LEDs muaj kev cuam tshuam rau 50-60 Hz oscillations ntawm AC, thiab yog tias cov kev hloov pauv no tsis tswj tau zoo, lawv tshwm sim raws li kev hloov pauv hauv lub teeb pom kev. Raws li kev tshawb fawb, flashing saum 100 Hz yuav tsis pom, tab sis nws tseem yuav ua rau mob subliminal xws li mob taub hau lossis qaug zog. Kev kho nws yuav tsum muaj kev nkag siab txog qhov teeb meem hauv qab no, uas peb yuav dhau mus rau ntau yam hauv qab no.
Thaum kuv siv lub dimmer hloov, yog vim li cas kuv lub teeb downlights flicker?
Teb: Ib qho kev hloov tsis zoo dimmer yog ib qho ntawm cov neeg ua txhaum ntau zaus. Pa dimmers, ua rau incandescent lossis halogen teeb, txiav AC waveform siv ob qho tib si ua -ntug lossis trailing- ntug theem- txiav cov tswv yim kom qis voltage. Tab sis vim tias LEDs xav tau qhov tam sim no tsis tu ncua, cov dimmers no tuaj yeem cuam tshuam rau LED tsav lub luag haujlwm, uas tuaj yeem ua rau flickering, tshwj xeeb tshaj yog nyob rau qis qis.
Piv txwv li, tus tsav tsheb LED tuaj yeem ntsib cov pulses yog tias lub triac dimmer poob zog dhau lawm. Cov teeb meem tshwj xeeb yog qhov tsawg-voltage MR16 downlights thaum siv nrog tsis yog-dimmable halogen transformers. Koj tuaj yeem pom qhov ci ntsa iab ntawm qhov siab tshaj plaws lossis flickering thaum dimming.
Kev daws: Hloov lub dimmer tawm rau ib qho uas sib xws nrog LEDs, suav nrog cov uas ua los ntawm Lutron lossis Leviton thiab cim "LED" lossis "universal." Txheeb xyuas qhov load ntau ntawm lub dimmer; LEDs siv hluav taws xob tsawg (5-10W piv rau 60W rau incandescents), yog li nco ntsoov tias nws tuaj yeem ua haujlwm tsawg -wattage loads. Yog tias flickering tseem tsis tau siv lub dimmer, xyuas qhov hloov mus rau cov teeb meem vim nws yuav ua raws li cov teebmeem ntawm lub dimmer.
Puas yog LED downlights flicker raws li qhov tshwm sim ntawm qhov hloov pauv hluav taws xob?
Teb: Yog, qhov kev hloov pauv ntawm qhov hluav taws xob hauv koj cov khoom siv hluav taws xob yog qhov ua rau nquag. Lub hwj chim hauv tsev tsis yog ib txwm ruaj khov - siab -cov khoom siv xws li cua txias, tub yees, lossis tshuab ntxhua khaub ncaws tuaj yeem ua rau muaj hluav taws xob poob thaum lawv mus ncig. LEDs yog rhiab heev rau cov kev hloov no; txawm tias 1-2% poob tuaj yeem ua rau tus neeg tsav tsheb tawm tsam, ua rau flickering lossis lub sijhawm dimming.
Qhov teeb meem yog exacerbated nyob rau hauv kev lag luam chaw thaum sib koom circuits nrog motors los yog fluorescent teeb tsim hluav taws xob suab nrov los yog harmonics. Piv txwv li, qhov kev thov hauv cheeb tsam yuav ua rau brownouts thaum hmo ntuj tsaus ntuj, ua rau lub teeb flicker. Qhov teeb meem no ua rau tsis zoo los ntawm tsawg- cov tsav tsheb zoo LED, uas nquag pom nyob rau hauv lub teeb pheej yig thiab tsis muaj zog capacitors los txo cov nthwv dej no.
Kev daws: Nruab ib qhov hluav taws xob stabilizer lossis tsis cuam tshuam lub zog hluav taws xob (UPS) rau cov khoom siv hluav taws xob. Ua kom siv cov hwm LED tsav tsheb uas suav nrog kev tiv thaiv surge. Tham nrog ib tus kws kho hluav taws xob saib xyuas cov xaim hluav taws xob tsis txaus lossis tsis tsim nyog hauv av, uas tuaj yeem ua rau muaj qhov tsis txaus ntseeg, yog tias flickering cuam tshuam nrog kev siv cov khoom siv.
Puas yog kuv lub teeb LED Downlight Flickering Vim Loose Wiring?
Teb: Tseeb tiag. Arcing thiab flickering tuaj yeem tshwm sim los ntawm kev sib cuag tsis sib xws los ntawm kev sib txuas ntawm cov xaim xoob lossis tsis zoo hauv qhov hloov, lub thawv sib txuas, lossis kev sib txuas. Qhov no yog qhov tshwm sim hauv cov tsev laus lossis cov khoom siv tsis zoo uas cov LEDs tau siv rau qhov chaw halogen downlights. Thaum lub sij hawm, kev sib txuas yuav tau xoob vim thermal expansion lossis ko taw vibrations, thiab cov terminals yuav deteriorate vim corrosion los ntawm ya raws (xws li hauv chav dej).
Koj tuaj yeem pom flickering uas tsuas yog cuam tshuam rau ib lub teeb nyob rau hauv ib ntus, qhia txog qhov teeb meem hauv cheeb tsam, lossis qhov ntawd ua rau muaj kev txav mus los, xws li taug kev hla hauv pem teb saum toj no.
Kev daws: Txheeb xyuas cov kev sib txuas thiab txiav fais fab ntawm lub breaker. Siv cov txiv ntseej hlau ntsuas rau qhov amperage ntawm lub voj voog, ceev cov ntsia hlau, thiab sib pauv cov xov hlau uas hnav. Xyuas kom lub caij nplooj ntoos hlav clips los yog thawb- nyob rau hauv kev sib txuas yog fastened ruaj ntseg rau recessed downlights. Ib tus kws tshaj lij hluav taws xob uas tau lees paub yuav tsum tau ntiav yog tias koj tsis muaj kev ntseeg siab vim tias kev xaim tsis raug yuav ua rau muaj hluav taws.
Puas yog Flickering tshwm sim nrog qis-Zoo LED qhov muag teev lossis tsav tsheb?
Teb: Yog, qis- LED downlights zoo lossis tsav tsheb yog qhov ua rau flickering. Cov neeg tsav tsheb pheej yig nrog cov khoom tsis sib xws, xws li cov capacitors tsis muaj zog, uas tsis tuaj yeem txhawb nqa cov khoom tso tawm tas li yog feem ntau siv hauv cov nqi qis - nqi fixtures. Thermal throttling, uas lub teeb flickers los yog dims los tiv thaiv nws tus kheej, tej zaum yuav tshwm sim los ntawm cov tsav tsheb overheating. Tsis tas li ntawd, phosphor txheej ntawm LED yog tsis muaj zog los ntawm overheating, uas ua rau cov xim hloov los yog tsis sib xws illumination.
Qhov kub thiab txias ambient (pom nyob rau hauv attics los yog kaw fixtures, piv txwv li) hasten no deterioration thiab drastically shorten ib teev 50,000-teev lifespan. Thaum nyob rau hauv hom teeb, ntse LED downlights yuav txhob txwm flicker (piv txwv li, flashing ib zaug txhua ob thaum ua ke nrog ib qho app), tab sis tsis tu ncua flickering qhia muaj teeb meem.
Kev daws: Ua kev nqis peev hauv cov tuam txhab muaj txiaj ntsig nrog UL / ETL cov ntawv pov thawj, xws li Philips, Cree, lossis Osram. Txhawm rau txheeb xyuas cov tsav tsheb nrog siab - zaus Pulse Width Modulation (PWM) saum toj no 3 kHz, uas tsis tuaj yeem kuaj tau rau tib neeg, nrhiav "flicker-dawb" labeling. Txhawm rau txhim kho kev tswj hwm thermal, sib pauv cov cuab yeej kub rau cov uas muaj qhov cua txaus lossis nruab cov dab dej kub.
Flickering puas tuaj yeem tshwm sim los ntawm kev thauj khoom tsis raug lossis ntau lub teeb?
Teb: Flickering tuaj yeem tshwm sim los ntawm Circuit Court overloads lossis load tsis sib haum. Muaj qhov tsawg kawg nkaus thiab siab tshaj qhov ntsuas rau dimmers thiab tsav tsheb. Vim tias LEDs siv lub zog me me, lawv tuaj yeem ua haujlwm hauv qab qhov chaw qis tshaj plaws ntawm lub dimmer, uas yuav ua rau tus cwj pwm tsis zoo xws li buzzing lossis flickering. Ib lub teeb tsis zoo yuav ua rau muaj teeb meem ntxiv hauv circuits nrog ob peb lub teeb, los yog unscrewing ib lub teeb yuav sib npaug lub load thiab khov kho rau lwm tus.
Tshwj xeeb tshaj yog thaum lub sij hawm ntawm kev siv siab, overloading Circuit Court nrog ntau dhaudownlightstuaj yeem ua rau muaj kev ntxhov siab rau lub tshuab hluav taws xob, ua rau muaj hluav taws xob sags thiab pab pawg flickering.
Teb: Ua kom tag nrho cov wattage ntawm koj lub teeb nyob rau hauv qhov kev ntsuam xyuas ntawm tus tsav tsheb los yog dimmer. Txhawm rau ua kom tiav qhov tsawg kawg nkaus uas yuav tsum tau ua rau qis -wattage configurations, siv lub resistor lossis dummy load. Txhawm rau kom muaj kev sib haum xeeb thoob plaws ob peb lub teeb, faib cov kab hluav taws xob dhau los lossis siv cov tsav tsheb tas li - tam sim no.
Puas yog LED downlights cuam tshuam los ntawm Electromagnetic Interference (EMI)?
Teb: Yog, nyob rau qee qhov xwm txheej. LED circuits yuav flicker vim lub suab nrov uas tsim los ntawm electromagnetic cuam tshuam (EMI) los ntawm cov khoom siv nyob ib sab xws li xov tooj cua, microwaves, Wi-Fi routers, los yog lub tsev ntse (Zigbee, Bluetooth). Qhov no yog tshwj xeeb tshaj yog nyob rau hauv cov nroog uas muaj zog RF kis tau tus mob los yog nyob rau hauv cov tsev uas muaj ntau yam technology. Pheej yig LEDs uas tsis zoo insulated tsav tsheb yog tshwj xeeb tshaj yog yooj yim.
Flickering uas cuam tshuam nrog kev siv cuab yeej, xws li kev sib tham hauv xov tooj ze rau lub teeb lossis siv microwave, yuav raug pom.
Kev daws: Txhawm rau txo kev cuam tshuam, siv cov hlua khi los yog cov hlaws ferrite ntawm cov hlua. Cov khoom siv xws li routers yuav tsum tau txav deb ntawm cov teeb pom kev zoo. Xaiv sab saum toj -tus tsav tsheb nrog EMI lim.
