Isingeniso kumshayeli we-LED
Ama-LED angamadivayisi e-semiconductor azwelayo anezici zokushisa ezingezinhle.Ngakho-ke, idinga ukuzinza futhi ivikelwe phakathi nenqubo yesicelo, okuholela kumqondo womshayeli.Amadivaysi e-LED anezidingo ezicishe zibe nzima zamandla okushayela.Ngokungafani nama-incandescent bulbs ajwayelekile, ama-LED angaxhunywa ngokuqondile kugesi ongu-220V AC.
Umsebenzi womshayeli we-LED
Ngokwemithetho yamandla egridi yamandla kanye nezidingo zesici zokunikezwa kwamandla kamshayeli we-LED, amaphuzu alandelayo kufanele acatshangelwe lapho kukhethwa futhi kuklanywa ukunikezwa kwamandla kamshayeli we-LED:
Ukuthembeka okuphezulu: ikakhulukazi njengomshayeli wezibani zomgwaqo ze-LED.Ukunakekela kunzima futhi kuyabiza ezindaweni eziphakeme.
Ukusebenza kahle okuphezulu: Ukusebenza kahle okukhanyayo kwama-LED kuncipha ngezinga lokushisa elikhulayo, ngakho-ke ukuchithwa kokushisa kubaluleke kakhulu, ikakhulukazi uma ukunikezwa kwamandla kufakwe kusibani.I-LED iwumkhiqizo wokonga amandla onamandla okushayela okuphezulu, ukusetshenziswa kwamandla okuphansi kanye nokukhiqizwa kokushisa okuphansi esibanini, okusiza ukunciphisa ukukhuphuka kwezinga lokushisa kwesibani futhi kubambezele ukuncishiswa kokukhanya kwe-LED.
Isici samandla aphezulu: Isici samandla siyisidingo segridi yamandla ekulayisheni.Ngokuvamile, azikho izinkomba eziphoqelekile zezinto zikagesi ezingaphansi kwama-watts angu-70.Nakuba isici samandla esisebenza ngogesi esinamandla amancane siphansi kakhulu, sinomthelela omncane kugridi yamandla.Kodwa-ke, uma izibani zivuliwe ebusuku, imithwalo efanayo izogxila kakhulu, okuzobangela imithwalo enzima kugridi.Kuthiwa kumshayeli we-LED wama-watts angu-30 kuya kwangu-40, kungase kube nezidingo ezithile zenkomba zesici samandla esikhathini esizayo esiseduze.
Isimiso somshayeli we-LED
Ijika lobudlelwane phakathi kokwehla kwe-voltage eya phambili (VF) kanye neyamanje yangaphambili (IF).Kungabonakala ejikeni ukuthi lapho i-voltage eya phambili idlula i-threshold ethile (cishe i-2V) (evame ukubizwa ngokuthi i-on-voltage), cishe kungabhekwa ukuthi i-IF ne-VF ziyalingana.Bheka ithebula elingezansi ukuze uthole izici zikagesi zama-LED amakhulu akhanya kakhulu.Kungabonakala etafuleni ukuthi i-IF ephakeme kakhulu yama-LED amanje akhanyayo angafinyelela ku-1A, kuyilapho i-VF ivamise ukuba ngu-2 kuya ku-4V.
Njengoba izici zokukhanya ze-LED ngokuvamile zichazwa njengomsebenzi wamanje kunomsebenzi we-voltage, okungukuthi, ijika lobudlelwane phakathi kwe-luminous flux (φV) kanye ne-IF, ukusetshenziswa komshayeli womthombo wamanje ongashintshi kungalawula kangcono ukukhanya. .Ngaphezu kwalokho, ukwehla kwe-voltage eya phambili ye-LED inobubanzi obukhulu kakhulu (kufika ku-1V noma ngaphezulu).Njengoba kungabonakala ejikeni le-VF-IF esithombeni esingenhla, uguquko oluncane lwe-VF luzoholela ekushintsheni okukhulu kwe-IF, okuholela ekukhanyeni okukhulu nezinguquko ezinkulu.
Ijika lobudlelwane phakathi kwezinga lokushisa le-LED kanye ne-luminous flux (φV).Isibalo esingezansi sibonisa ukuthi ukuguquguquka okukhanyayo kuhambisana ngokuphambene nezinga lokushisa.I-flux ekhanyayo ku-85°C iyingxenye ye-flux ekhanyayo ku-25°C, futhi ukuphuma okukhanyayo ku-40°C izikhathi ezingu-1.8 zokukhanya okukhanyayo ku-25°C.Ukushintsha kwezinga lokushisa nakho kuba nomthelela othile kubude begagasi be-LED.Ngakho-ke, ukukhishwa okuhle kokushisa kuyisiqinisekiso sokuqinisekisa ukuthi i-LED igcina ukukhanya okungapheli.
Ngakho-ke, ukusebenzisa umthombo wamandla kagesi ongashintshi ukushayela akukwazi ukuqinisekisa ukuvumelana kokukhanya kwe-LED, futhi kuthinta ukwethembeka, ukuphila kanye nokuncishiswa kokukhanya kwe-LED.Ngakho-ke, ama-LED akhanyayo kakhulu avame ukuqhutshwa umthombo wamanje oqhubekayo.
Isikhathi sokuthumela: Sep-03-2021