Iyini i-LED Dimmer Driver?

Njengoba ama-LED adinga i-voltage eqondile yamanje nephansi ukuze asebenze, umshayeli we-LED kufanele alungiswe ukuze alawule inani likagesi ongena ku-LED.
Umshayeli we-LED uyingxenye kagesi elawula i-voltage kanye nezamanje kusukela kumandla kagesi ukuze ama-LED akwazi ukusebenza ngokuphepha nangempumelelo. Umshayeli we-LED ushintsha i-alternating current (AC) ukunikezwa kwamandla ukusuka kumapayipi amakhulu ukuya ku-direct current (DC) ngoba amandla amaningi asebenza kumapayipi amakhulu.
I-LED ingenziwa ingabi namandla ngokushintsha umshayeli we-LED, ophethe ukulawula inani lamanje elingena ku-LED. Lo mshayeli we-LED owenziwe ngezifiso, kwesinye isikhathi obizwa ngokuthi umshayeli we-LED dimmer, ulungisa ukukhanya kwe-LED.
Kubalulekile ukucabangela ukusetshenziswa kalula komshayeli we-LED dimmer ngenkathi uthenga eyodwa. I-LED dimmer driver ene-dual in-line package (DIP) eshintshela phambili yenza kube lula kubasebenzisi ukushintsha okuphumayo kwamanje, okubuye kulungise ukukhanya kwe-LED.
Ukuhambisana komshayeli we-dimmer we-LED namapuleti asebondeni e-Triode for Alternating Current (TRIAC) kanye nogesi kungesinye isici okufanele usihlole. Lokhu kuqinisekisa ukuthi ungakwazi ukulawula amandla kagesi wesivinini esikhulu ageleza ku-LED nokuthi i-dimmer yakho izosebenza kunoma iyiphi iphrojekthi ocabanga ngayo.

Izindlela ezimbili noma ukulungiselelwa kusetshenziswa abashayeli be-LED dimmer ukuze balawule amandla kagesi angena ku-LED: i-amplitude modulation kanye ne-pulse wide modulation.

Ukunciphisa inani lamanje eliholayo elidlula ku-LED kuwumgomo wokuguquguquka kobubanzi be-pulse, noma i-PWM.
Umshayeli ngezikhathi ezithile uvula futhi ayivale i-current futhi ayibuyisele futhi ukuze alawule inani lamanje lamandla e-LED, ngisho noma i-current ingena ku-LED ihlala ingashintshi. Ngenxa yalokhu kushintshisana okufushane kakhulu, ukukhanya kuba lufifi futhi kucwayize ngokushesha ngendlela engaqondakali ukuze kubonwe umuntu.

Ukunciphisa inani lamandla kagesi angena ku-LED kwaziwa ngokuthi i-amplitude modulation, noma i-AM. Ukukhanya kwe-Dimmer kuvela ekusebenziseni amandla amancane. Ngendlela efanayo, ukwehla kwemiphumela yamanje emazingeni okushisa aphansi kanye nokusebenza kahle kwe-LED. I-Flicker nayo iyaqedwa ngalelisu.
Kodwa-ke, khumbula ukuthi ukusebenzisa le ndlela yokufiphalisa kunengozi ethile yokushintsha ukuphuma kombala we-LED, ikakhulukazi emazingeni aphansi.

Ukuthola izishayeli ezicimeka ze-LED kuzokuvumela ukuthi uthole okuningi ekukhanyeni kwakho kwe-LED. Thatha ithuba lenkululeko yokuguqula amaleveli okukhanya ama-LED akho ukuze wonge amandla futhi ube nokukhanya okunethezeka kakhulu endlini yakho.
Xhumana nathiudinga amalambu e-LED ane-dimmer/dimmer dirver noma ezinye izesekeli.