Dimmable LED teeb pom kev zoo tau dhau los ua neeg nyiam vim lawv muaj ntau yam thiab muaj peev xwm txuag hluav taws xob. Txawm li cas los xij, ntau tus neeg feem ntau sab laug xav tias lawv ua haujlwm li cas. Hauv tsab xov xwm no, peb yuav tham txog yuav ua li cas dimmable LED qhov muag teev ua haujlwm thiab dab tsi ua rau lawv txawv ntawm LED qhov muag teev.
Nyob rau hauv lub plawv ntawm dimmable LED teeb qhov muag teev yog me me integrated circuit chips uas tswj cov nqi ntawm tam sim no ntws los ntawm lub teeb. Cov chips no yog lub luag haujlwm rau kev tswj cov teeb pom kev uas lub teeb tsim thiab tseem yog qhov tso cai rau lub teeb kom dim.
Muaj ntau txoj hauv kev uas dimmable LED qhov muag teev tuaj yeem dim. Ib txoj hauv kev zoo tshaj plaws yog los ntawm kev kho tus nqi tam sim no los ntawm lub teeb. Qhov no tuaj yeem ua tiav los ntawm cov txheej txheem hu ua pulse width modulation (PWM), uas cuam tshuam txog kev tig tam sim no rau thiab tawm sai heev. Los ntawm kev hloov qhov kev faib ua feem ntawm lub sijhawm rau thiab tawm, lub teeb tuaj yeem tsim lub teeb ntau dua lossis tsawg dua.
Lwm txoj hauv kev uas dimmable LED qhov muag teev tuaj yeem dim yog los ntawm kev kho qhov hluav taws xob tau muab rau lub teeb. Qhov no yog ua los ntawm cov txheej txheem hu ua analog dimming, uas hloov cov theem voltage ntws los ntawm lub teeb. Analog dimming tsis yog qhov tseeb li PWM, tab sis nws yog ib txoj hauv kev yooj yim dua thiab feem ntau siv hauv cov tshuab dimming qub.
Ib qho ntawm qhov sib txawv tseem ceeb ntawm dimmable LED teeb qhov muag teev thiab cov qij LED tsis tu ncua yog lawv cov tsav tsheb. LED qhov muag teev yuav tsum tau tsav tsheb los tswj tus nqi tam sim no ntws los ntawm lub teeb, tab sis dimmable LED qhov muag teev yuav tsum tau tshwj xeeb tsav tsheb uas tuaj yeem tswj dimming. Cov tsav tsheb no tuaj yeem ua rau hauv lub teeb lossis tuaj yeem ua rau sab nraud, nyob ntawm seb hom teeb thiab qhov dimming system siv.
Nws yog ib qho tsim nyog sau cia tias tsis yog tag nrho cov teeb pom kev zoo ntawm LED yog dimmable, yog li nws yog ib qho tseem ceeb uas yuav tsum tau xyuas cov ntim kom ntseeg tau tias lub teeb koj xaiv yog sib xws nrog koj qhov dimming system. Tsis tas li ntawd, qee lub tshuab dimming yuav tsis sib haum nrog qee qhov dimmable LED teeb qhov muag teev, yog li nws yog ib qho tseem ceeb uas yuav tau xyuas nrog cov chaw tsim khoom kom ntseeg tau tias muaj kev sib haum xeeb.
Hauv kev xaus, dimmable LED qhov muag teev ua haujlwm los ntawm kev siv cov chips sib xyaw ua ke thiab cov tsav tsheb tshwj xeeb uas tso cai rau lawv kom dim. Txawm hais tias los ntawm PWM lossis analog dimming, cov qij no muaj kev yooj yim dua thiab txuag hluav taws xob piv rau cov qij LED li niaj zaus. Nrog rau qhov muaj koob meej loj hlob ntawm dimmable LED teeb qhov muag teev, nws tseem ceeb heev kom paub txog lawv cov yam ntxwv tshwj xeeb thiab muaj peev xwm ua ntej koj yuav khoom.
