Inkcazo yeParamitha yeDiode eLuminous

I-diode yokukhanya eyaziwayo iyancipha ukuya kwi-1.6V-2.1V, kunye neempawu zokusebenza zangoku ze-5-20mA LED 1. Intsingiselo yomlinganiselo weparamitha (1) Isithembiso sosetyenziso lwamandla PM: thembisa ukongeza iintloko ezimbini ze-LED ukuya kumbane wombane we-DC Elona xabiso lobusuku lidala eliqukuqela kuyo. Wela eli xabiso, umkhuhlane we-LED kunye nokutshatyalaliswa. (2) Positive DC yangoku IFM: Eyona databst ebalulekileyo yangoku ethenjisiweyo. Eli xabiso lingatshabalalisa i-diode. (3) I-voltage ebuyela umva i-VRM: Awona mandla ombane amadala abuyela umva athenjiswe ngawo ukongeza. Ngeli xabiso, i-diode ekhupha ukukhanya ingachithwa kwaye itshatyalaliswe. (4) I-TOPM: Umlinganiselo wobushushu we-diode ekhupha ukukhanya unokusebenza ngokuqhelekileyo. Ngezantsi okanye ngaphezulu kolu bushushu, i-diode ekhupha ukukhanya ayiyi kusebenza kakuhle, kunye nesiphumo sokuncipha. 2. Ukubaluleka kweeparamitha zombane (1) Ukusebenza kakuhle okwangoku IF: Kubhekiselele kwixabiso elihle langoku lokukhanya okuqhelekileyo kwe-diode xa i-diode evuthayo. Ekusetyenzisweni okwenyani, kuya kufuneka ukhethe ukuba ufuna ukukhetha ukuba uyafuna ·Ngezantsi ifm. (2) I-voltage esebenzayo ye-VF: I-voltage esebenzayo enikwe kwitheyibhile yepharamitha ifunyenwe phantsi komsinga onikiweyo wangaphambili. Ngokuqhelekileyo kulinganiswa xa IF = 20mA. I-diode ekhanyayo ikwi-voltage yokusebenza VF kwi-1.4 3V. Xa ubushushu bangaphandle bukhuphuka, i-VF iya kuhlala. (3) Isici se-V-I: Xa ubudlelwane phakathi kombane kunye nombane we-diode ekhupha ukukhanya ingaphantsi kwexabiso elithile (elibizwa ngokuba yi-threshold), umsinga uncinci kakhulu kwaye awukhuphi ukukhanya. Xa i-voltage ibeka ixabiso elithile, i-front current i-agile kunye ne-voltage kunye nokukhanya. Ungayisusa njani i-Inokususa i-voltage elungileyo yetyhubhu yokukhanya, i-reverse current kunye ne-reverse voltage yombhobho wokukhanya ukusuka kwindlela yokususa i-V-LED bead yesibane. Umbhobho okhanyayo oqaqambileyo ovuzayo wangoku we-IR