Yav tom ntej LED dimming system
Yog li dab tsi ntawm qhov dimming system yuav tsum siv LEDs?
4.1 PWM Dimming
Raws li tau hais ua ntej, LED dimming yog qhov zoo tshaj plaws los siv PWM dimming. Thaum siv PWM dimming, koj tuaj yeem nruab ib lub tshuab hluav taws xob PWM yooj yim hauv phab ntsa hloov, thiab tom qab ntawd siv lub potentiometer los tswj PWM lub luag haujlwm piv kom ua tiav dimming. Tab sis yog tias koj xav hloov lub teeb rau thiab tawm, koj yuav tsum tau ntxiv ib khub ntawm cov xov hlau. Yog li ntawd, nws tsis sib xws nrog cov hlau lead ntawm thyristor hloov hauv thawj phab ntsa. Tus thawj thyristor hloov pauv tsuas muaj ob txoj hauv kev, uas tuaj yeem dimmed thiab hloov pauv. Qhov zoo dua no yog qhov nyuaj rau kev sib haum xeeb. Txawm li cas los xij, qhov tseeb, feem ntau siv cov dimming teeb yog lub rooj teeb lossis cov teeb sawv. Cov dimmer keyboards yog ntsia rau ntawm lub hwj chim qaum es tsis txhob ntawm phab ntsa, yog li nws tsis muaj teeb meem los siv ob qho tib si hauv phab ntsa. Hauv lwm lo lus, PWM dimming tuaj yeem siv ncaj qha rau lub rooj teeb dimming.
