Nidaamka mugdiga LED ee mustaqbalka
Haddaba noocee ah nidaamka dimming waa in LED-yadu isticmaalaan?
4.1 PWM Dimming
Sidii hore loo soo sheegay, iftiinka LED-ka ayaa ugu fiican in la isticmaalo dimming PWM. Markaad isticmaalayso PWM dimming, waxaad ku rakibi kartaa koronto-dhaliye fudud oo PWM ah beddelka gidaarka, ka dibna isticmaal potentiometer-ka si aad u xakamayso saamiga waajibaadka PWM si aad u gaadho hoos u dhac. Laakin haddii aad rabto in aad shid ama damiso nalka, waxa aad u baahantahay in aad ku darto laba fiilood. Sidaa darteed, kuma habboona sunta rasaasta thyristor ee gidaarka asalka ah. Daboolka asalka ah ee thyristor wuxuu leeyahay laba hogaan oo kaliya, kuwaas oo la dami karo oo la bedeli karo. Faa'iidadani way adag tahay in la is waafajiyo. Si kastaba ha ahaatee, dhab ahaantii, nalalka madow ee inta badan la isticmaalo waa nalalka miiska ama nalalka taagan. Furayaashaas dimmer waxay ku rakiban yihiin xadhigga korantada halkii ay ka ahaan lahaayeen gidaarka, markaa dhib ma laha in la isticmaalo labada hogaan ee gidaarka. Si kale haddii loo dhigo, Dimming PWM si toos ah ayaa loogu dabaqi karaa nalalka miiska khafiifinta.
