Fingqa abashayeli kanye nezinyathelo zokuphepha ezisetshenziswa ekubonisweni kwe-elekthronikhi ye-LED

Isibonisi se-elekthronikhi se-LED siwuhlobo lwedivayisi yokulawula yamanje, umshayeli we-LED empeleni amandla okushayela e-LED, okungukuthi, idivayisi yesekethe eguqula amandla e-AC abe amandla e-DC amanje amanje noma angashintshi.Ngokungafani nama-incandescent bulbs ajwayelekile, izibonisi ze-elekthronikhi ze-LED zingaxhunywa ngokuqondile kuma-main angu-220V AC.Ama-LED anezidingo ezicishe zibe nzima zamandla okushayela, futhi amandla ogesi awo asebenzayo ngokuvamile ama-voltage angu-2 ~ 3V DC, futhi isekethe yokuguqula eyinkimbinkimbi kufanele yakhelwe.Izibani ze-LED ngezinhloso ezahlukene kufanele zifakwe ama-adaptha amandla ahlukene.

Amadivayisi e-LED anezidingo eziphakeme kakhulu zokusebenza kahle kokuguqulwa, amandla asebenzayo, ukunemba okungaguquki kwamanje, impilo yamandla, nokuhambisana kukamagnetic kwamandla wedrayivu ye-LED.Amandla okushayela amahle kufanele acabangele lezi zici, ngoba amandla okushayela akuso sonke isibani se-LED.Indima ibaluleke njengenhliziyo yomuntu.Umsebenzi oyinhloko womshayeli we-LED ukuguqula i-voltage ye-AC ibe ugesi wamanje we-DC ongashintshi, futhi ngesikhathi esifanayo uqedele ukufanisa ne-voltage ye-LED namanje.Omunye umsebenzi womshayeli we-LED ukwenza umthwalo wamanje we-LED olawulwa ezingeni elakhiwe ngaphambilini ngaphansi kwethonya lezici ezihlukahlukene.

Kunemibandela yokuthi isibonisi se-elekthronikhi se-LED sikhiphe ukukhanya.I-voltage eya phambili isetshenziswa kuzo zombili iziphetho ze-PN junction, ukuze i-PN junction ngokwayo yakhe izinga lamandla (empeleni uchungechunge lwamazinga wamandla), futhi ama-electron agxume kuleli zinga lamandla futhi akhiqize ama-photon ukuze akhiphe ukukhanya.Ngakho-ke, i-voltage esetshenziswa kuyo yonke i-PN junction iyadingeka ukushayela i-LED ukuze ikhiphe ukukhanya.Ngaphezu kwalokho, ngenxa yokuthi ama-LED angamadivayisi we-semiconductor azwela isici anezici zokushisa ezingezinhle, adinga ukusimamiswa futhi avikelwe phakathi nenqubo yokufaka isicelo, ngaleyo ndlela kuvele umqondo we-LED “drive”.

Noma ubani oke wathintana nama-LED uyazi ukuthi izici ze-volt-ampere zangaphambili zama-LED ziwumqansa kakhulu (i-voltage eya phambili eguquguqukayo incane kakhulu), futhi kuba nzima kakhulu ukunikeza amandla ku-LED.Ngeke inikwe amandla ngokuqondile umthombo we-voltage njengamalambu ajwayelekile e-incandescent.Uma kungenjalo, i-voltage Ngokunyuka kancane kokuguquguquka, i-current izokhuphuka kuze kube yilapho i-LED izoshiswa.Ukuze uzinzise ukusebenza kwamanje kwe-LED futhi uqinisekise ukuthi i-LED ingasebenza ngokujwayelekile nangokuthembekile, kuye kwavela amasekethe ahlukahlukene we-LED drive.


Isikhathi sokuthumela: May-24-2021
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