Guud ahaan, ilaha iftiinka LED si fudud ayaa loo qaybin karaa laba qaybood: shakhsiNalalka LED-kailo ama ilo iftiin diode LED leh resistors.Codsiyada, mararka qaarkood ilaha iftiinka LED waxaa loo qaabeeyey sidii module ka kooban beddelaha DC-DC, iyo qaybo kakan oo kale kuma jiraan baaxadda dooda maqaalkan.Haddii isha iftiinka LED-ka ama moduleka uu yahay diode gooni ah laftiisa, habka dimming ee caadiga ah waa in la hagaajiyo baaxaddagelinta LED hadda.Sidaa darteed, xulashada awoodda darawalka LED waa in ay tixraacaan sifadan.Xarigga iftiinka LED-ka waxaa si weyn loogu isticmaalaa iska-caabiyeyaasha leh diode-yada LED-yada oo taxane ah, sidaa darteed korantadu waa mid deggan.Sidaa darteed, isticmaalayaashu waxay isticmaali karaan wax kasta oo ganacsi ahaan la heli karo koronto joogto ah si ay u wadaanXarigga iftiinka LED.

Xalka ugu fiican ee laydhka iftiinka LED-ku waa in la isticmaalo qaabaynta xajmiga garaaca wadnaha ee cabbirka shaqada PWM dimming si loo xalliyo dhibaatooyinka dhimirka ee caadiga ah.Iftiinka wax-soo-saarka wuxuu ku tiirsan yahay wareegga culeyska ee calaamadda dhimista si loo gaaro isbeddello yareynaya oo yareynaya iftiinka.Halbeegyada muhiimka ah ee xulashada sahayda korantada wadista waa falanqaynta dhumucda iyo inta jeer ee wax soo saarka ballaca ballaca garaaca wadnaha PWM.Awooda yaraynta ugu yar waa inay ahaataa mid hoose sida 0.1% si loo gaadho 8-bit xallinta dhimista si loo daboolo dhammaan codsiyada iftiinka iftiinka LED.Wax-soo-saarka balaadhka garaaca wadnaha ee soo noqnoqda ee PWM waa inuu ahaadaa mid aad u sarreeya si looga hortago dhibaatooyinka iftiinka iftiinka, Sida laga soo xigtay suugaanta cilmi-baarista farsamada ee la xidhiidha, waxaa lagu talinayaa in la haysto inta jeer ee ugu yaraan ka sarreeya 1.25kHz si loo yareeyo roodhida muuqda ee indhaha bini'aadamka.