Gukoresha tekinoroji ukoresheje DC power LED
Biroroshye guhindura urumuri rwa LED muguhindura icyerekezo cyimbere kugirango uhindure urumuri. Igitekerezo cya mbere ni uguhindura ibiyobora bigezweho, kubera ko urumuri rwa LED rusa nkaho rugereranije nubushakashatsi bwarwo.
1.1 Uburyo bwo guhindura ibigezweho
Inzira yoroshye yo guhindura imiyoboro ya LED ni uguhindura icyerekezo cyo gutahura gihuza umurongo hamwe nu mutwaro wa LED. Hafi ya DC-DC ihoraho ya chip ifite intera yo kumenya ikigezweho. Umuyoboro uhoraho. Nyamara, agaciro kiyi rezistoriste ikunze kuba nto cyane, gusa oms nkeya, niba ushaka gushyira potentiometero kurukuta kugirango uhindure ikigezweho ntabwo bishoboka, kuko kurwanya isasu nabyo bizaba bifite oms nkeya. Kubwibyo, chip zimwe zitanga igenzura rya voltage. Guhindura ibyinjira byinjira voltage birashobora guhindura ibisohoka bihoraho agaciro.
1.2 Guhindura icyerekezo cyimbere bizahindura chromatogramu
Ariko, gukoresha uburyo bugezweho kugirango uhindure urumuri bizatera ikibazo, ni ukuvuga, bizahindura imiterere yubushyuhe nubushyuhe bwamabara mugihe uhindura urumuri. Kugeza ubu, LED yera ikorwa na fosifori yubururu ishimishije hamwe na LED yubururu. Iyo imiyoboro yimbere igabanutse, ubwiza bwa LED yubururu bwiyongera kandi ubunini bwa fosifori yumuhondo ntibigabanuka ugereranije, bityo byongera uburebure bwiganje bwumurambararo. Kurugero, iyo icyerekezo cyimbere ari 350mA, ubushyuhe bwamabara ni 5734K, naho iyo imbere yimbere yiyongera kuri 350mA, ubushyuhe bwamabara buhinduka kuri 5636K. Mugihe ikigezweho kigabanutse, ubushyuhe bwamabara buzahinduka amabara ashyushye.
Nibyo, ibyo bibazo ntibishobora kuba ikibazo kinini mumuri rusange. Ariko, muri sisitemu ya RGB LED, bizatera ihinduka ryamabara, kandi ijisho ryumuntu ryumva cyane gutandukana kwamabara, kubwibyo nabyo ntibyemewe.