Nrog LEDs, tsis muaj persistence, yog li qhov zaus ntawm lub teeb tso zis yog lub sij hawm rau cov zis waveform ntawm lub hwj chim qhov chaw. Qhov tso zis ntau zaus ntawm tus neeg tsav tsheb raug LED yog ob npaug ntawm qhov input zaus (50 Hz input voltage yog sib npaug rau 100 Hz tso zis zaus). Txawm hais tias feem coob ntawm cov tib neeg yuav tsis tuaj yeem pom qhov flashing, lawv tseem yuav ua rau muaj kev cuam tshuam tsis zoo ntawm kev raug ncua ntev, suav nrog mob taub hau, qhov muag, thiab qaug zog.
Thaum muaj cov mem tes nrog kev hloov kho, uas yog cov txheej txheem dimming, flickering yuav tshwm sim. Flickering yuav pom tau thaum lub mem tes nrog kev hloov pauv tswj cov LED lub zog tawm tswv yim tshwj tsis yog tias muaj qee qhov kev tswj hwm ntawm PWM zaus.
Cov zis yuav raug nce mus rau ntau pua ntawm hertz nrog tus tsim zoo LED tsav tsheb, ua rau nws pom tsis tau rau tib neeg lub qhov muag. LED tsav tsheb yuav tsum nyob ze rau ntawm lub teeb LED thiaj li ua tau qhov no, uas tsis yog ib txwm ua tau nyob rau hauv lub teeb pom kev zoo. Txawm li cas los xij, nws tau tshwj tseg rau kev teeb tsa zoo li TV thiab cov yeeb yaj kiab.
Tsim rau LED tsav tsheb thiab tswj cov tshuab
Yog tias koj xav tau lub teeb ci LED uas tsis flicker, koj yuav tsum txuas lub capacitor rau tus tsav tsheb tso tawm kom tshem tawm cov ripple. Qhov tsis zoo yog tias nws tuaj yeem ua rau lub neej luv luv thiab kev cia siab. (Cov kab ke yog lub npe hu ua kev txom nyem los ntawm cov capacitors tsis zoo.)
Kev siv cov tsav tsheb nrog ob-theem fais fab kev kho uas tuaj yeem tswj cov zis zaus, ripple, thiab suab nrov kuj tseem ceeb heev.
Txawm siv txoj hauv kev twg los xij, nws yog ib qho tseem ceeb los nrhiav thiab teeb tsa tus tsav tsheb zoo LED uas txo cov zis tawm ripple tam sim no hloov pauv. Vim li no, nws yog ib qho tseem ceeb rau cov neeg tsim teeb pom kev zoo los koom tes nrog LED tsav tsheb cov chaw muag khoom thiab cov chaw tsim khoom los tsim cov kev daws teeb meem uas yuav ua haujlwm nyob rau hauv ib puag ncig uas tsim yuav siv.
