Ngenxa yezimpawu zenani le-VF zeAma-LED, amanye amanani e-VF azoshintsha ngezinga lokushisa nelamanje, ngokuvamile elingafaneleki ukuklama okufanayo. Kodwa-ke, kwezinye izimo, kufanele sixazulule inkinga yezindleko zokushayela zama-LED amaningi ngokuhambisana. Le miklamo ingasetshenziselwa ireferensi.

Qaphela ukuthi inani le-VF lidinga ukuhlukaniswa ngamamaki. Ama-LED anenani elifanayo le-VF kufanele asetshenziswe kumkhiqizo ofanayo ngangokunokwenzeka. Umkhiqizo ungaqinisekisa ukuthi iphutha lamanje lingaphakathi kwe-1mA futhi i-LED isesimweni samanje esingaguquki.

Ukusebenzisa ama-triodes adidiyelwe kungagcina izinga lamanje ngalinyeI-LED engaguquki. Lawa ma-triodes akhiqizwa ngaphansi kwemvelo efanayo yezinga lokushisa kanye nezimo zenqubo efanayo β Inani elifanayo lingaqinisekisa ukuthi umthamo ngamunye uyafana ngokuyisisekelo. Ingxenye yamanje eqhubekayo ingaklanywa ngale ndlela lapho izidingo zingekho phezulu kakhulu. I-voltage ezinzile noma inani lamandla kagesi e-PWM elizinzile lishayela i-voltage ezinzile ye-triode bias ukuze kuzuzwe amandla angashintshi ayisisekelo.

Isebenzisa i-IC enemba okuphezulu njengomthombo wesithenjwa wamanje ongashintshi, u-R angasetha okukhiphayo kwe-IC yamanje. Uma inani lokumelana no-R selinqunyiwe, lingathathelwa indawo ukumelana okugxilile. Ukusetshenziswa kwemishini ehlanganisiwe ye-multi triode kunganciphisa ukusetshenziswa kwe-IC, ngaleyo ndlela kunciphise izindleko zemikhiqizo yokuklama.

I-Linear high-power high-power output engaguquki ye-LED ingasetshenziswa ngokuhambisana. Ekwakhiweni komkhiqizo, ngokuvamile asikwazi ukuthola i-IC yokushayela enamanje amakhulu. Ngokuvamile, akuvamile ukubona i-IC enegama elithi 2A noma ngaphezulu, futhi i-IC enegama elithi 2A ingase ingasetshenziselwa umkhawulo. Isizathu sezindleko zenqubo ye-IC enkulu kune-1a ukuthi amashubhu e-MOS angaphandle, futhi isifunda sethubhu ye-MOS yangaphandle siyinkimbinkimbi futhi ukwethembeka kuncishisiwe. Ukusebenza okuhambisanayo kuyindlela ephumelelayo yokuklama.

Idizayini yereferensi ye-Dd312 iyamukelwa ukushayela ngokuqondile ama-6wled amathathu. Ukunika amandla amasiginali okulawula i-PWM kudinga ukuhlukaniswa okufanele ukuze kugwenywe ukugxambukela kanye nezinkinga zomthamo wokushayela. I-voltage ye-en evumelayo kufanele ihlangabezane nezimfuneko zokucaciswa, futhi ingalimazi iphinikhodi ye-EN ibe phezulu kakhulu. Ngokuvamile, i-IC ukumelana ne-voltage ibhekisela ekulayisheni nasekunikezeni amandla. Uma ingekho inkomba ye-voltage evusa amadlingozi, sicela ungeqi umklamo ongu-5V.

Kulolu hlobo lokutholwa, iI-LED engaguqukiidrayivu ye-IC yamanje ekugcineni kwe-LED ingaklanywa futhi ishayelwe ngokuhambisana. Eqinisweni, i-IC isebenza yodwa futhi ekugcineni isebenza ndawonye ngokufana. Imodi ye-DC-DC isebenza ngefrikhwensi ephezulu. Kufanele kuqashelwe ukuthi ukwakheka kwe-PCB kufanele kugweme ukwakheka okuphambene. Isihlungi esifanele kanye nama-bypass capacitor kufanele asondele ku-IC, futhi umthamo wamanje uzohlanganiswa ekugcineni.