Ngokuvamile, imithombo yokukhanya ye-LED ingahlukaniswa ngezigaba ezimbili: umuntu ngamunyeUkukhanya kwe-diode ye-LEDimithombo noma imithombo yokukhanya ye-diode ye-LED enama-resistors.Kuzinhlelo zokusebenza, ngezinye izikhathi imithombo yokukhanya ye-LED iklanywa njengemojula equkethe isiguquli se-DC-DC, futhi amamojula anjalo ayinkimbinkimbi awekho ngaphakathi kobubanzi bengxoxo yalesi sihloko.Uma umthombo wokukhanya we-LED noma imojula iyi-diode ye-LED ehlukile ngokwayo, indlela evamile yokufiphalisa iwukuba ulungise ukuphakama kwesibani.Okokufaka kwe-LED yamanje.Ngakho-ke, ukukhethwa kwamandla omshayeli we-LED kufanele kubhekisele kulesi sici.Imichilo yokukhanya ye-LED isetshenziswa kabanzi njengeziphikisayo ezinama-diode e-LED axhunywe ochungechungeni, ngakho-ke i-voltage iyazinzile.Ngakho-ke, abasebenzisi bangasebenzisa noma yimaphi amandla kagesi atholakala ngokwentengiso ukuze bashayeleIzibani ze-LED.

Isixazululo esingcono kakhulu sokufiphalisa umugqa we-LED ukusebenzisa umsebenzi wokufiphalisa wobubanzi be-pulse PWM ukuxazulula izinkinga ezivamile zokufiphala kwe-deadtravel.Ukukhanya okukhiphayo kuncike kumjikelezo wokulayisha wesiginali yokufiphala ukuze kuzuzwe izinguquko zokufiphalisa ezinciphisa ukukhanya.Imingcele ebalulekile yokukhetha ukunikezwa kwamandla okushayela ukuhlaziya ukufiphala kanye nemvamisa yokuphuma kwe-pulse wide modulation PWM.Ikhono elincane lokufiphalisa kufanele libe phansi njengo-0.1% ukuze kufinyelelwe ukulungiswa kokufiphala okungu-8-bit ukuze kuhlangatshezwane nazo zonke izinhlelo zokusebenza zokufiphalisa umugqa wokukhanya we-LED.Imvamisa yokushintshashintsha kobubanzi be-pulse ye-PWM kufanele ibe phezulu ngangokunokwenzeka ukuze kuvinjwe izinkinga zokucwayiza kokukhanya, Ngokuvumelana nezincwadi zocwaningo lobuchwepheshe ezifanele, kutuswa ukuba kube nemvamisa okungenani ephakeme kuno-1.25kHz ukuze kuncishiswe ukucwayiza kwesipoki esibonakalayo esweni lomuntu.