Ubuhlalu besibani se-LED Thenga Ukungaqondi Okuthathu Okukhulu

Ukungaqondi kahle 1, okulindelekile kwempilo yangempela yesevisi kuphezulu kakhulu umenzi wobuhlalu besibani se-LED ulindele ukuthi impilo yobuhlalu besibani se-LED ifinyelele amahora ayi-100,000. Kodwa-ke, njengayo yonke imithombo yokukhanya eyisisekelo, ukugeleza kokukhanya kokukhanya kobuhlalu besibani se-LED nakho kwehlile ngokuhamba kwesikhathi. Ngakho-ke, nakuba isikhathi sokukhanyisa ubuhlalu besibani se-LED singaba side, i-MTBF akuyona ukuphela kokucatshangelwa kokunquma impilo yesevisi. Ukubola kobuhlalu besibani se-LED kuthinteka ezimweni eziningi zemvelo ezifana nezinga lokushisa lemvelo, umswakama kanye nokukhipha umoya. Umthelela wokuncishiswa isikhathi eside nawo uyathinteka ekulawuleni, ukuphatha okushisayo, izinga lamanje, nokunye okuningi okucatshangelwayo komklamo kagesi. Abathengisi abaningi bangase banikeze amakhasimende ulwazi oluthile olungaqondakali ngezizathu ezithile lapho bethengisa ubuhlalu besibani se-LED, okubangela ukudukisa. Isibonelo, impilo yesevisi yobuhlalu besibani se-LED cishe amahora angu-100,000. Amahora angu-100,000 lapha abhekisela empilweni yempilo yoMbane we-LED elindelwe umenzi. Kodwa-ke, njengomthombo wokukhanya wokukhanyisa, ukukhanya kwezibani kunenqubo yokubola kancane kancane ibe mnyama (njengokukhanya kwelanga, izibani zokulondoloza amandla). Le nqubo ibizwa ngokuthi ukubola kokukhanya. Ngakho-ke, abathengi kufanele banake ijubane layo lokubola kokukhanya lapho bethenga ubuhlalu besibani se-LED, bangasebenzisi isikhathi. Abathengi ngeke balindele iminyaka yokuphila yangempela. Hlukanisa i-engeli yokukhanya yangempela njenge-engeli ephumelelayo yobuhlalu besibani se-LED ibe i-engeli ephumelelayo kanye ne-engeli yokukhanya yangempela njenge-engeli ephumelelayo yobuhlalu besibani se-LED. I-engeli ephakathi kwe-engeli ephakathi kwesiqondiso samandla aphumayo iyingxenye yesiqondiso samandla e-axial kanye ne-axial ekhipha ukukhanya (indlela) i-engeli evumelekile. Iphinda kabili i-engeli (noma i-semi -power angle) ye-engeli enguhhafu -value i-engeli yokukhanyisa yangempela. I-engeli engaphezu kwe-engeli yamandla e-axial, ngenxa yokuthi ukukhanya kubuthakathaka kakhulu ekusetshenzisweni kwangempela, akubalwa ku-engeli evumelekile. Ngakho-ke, abathengi kufanele banake i-angle yokukhanyisa yangempela yomkhiqizo lapho bethenga imikhiqizo. Lapho kubalwa inani lemikhiqizo esetshenziswe kuphrojekthi yokubala, i-engeli yokukhanyisa yangempela iyoba khona. Ukungaqondi okuthathu, amandla amakhulu, ukukhanya kobuhlalu belambu le-LED kulinganiswa ngomfutho wokukhanya okukhiphayo. Amandla okukhipha ukukhanya abhekisela ekukhanyeni kokukhanya ekuqondeni komugqa wendlela (kuya epayipini elikhanyayo eliyisilinda libhekisela eksisi yalo) Ukukhanya okukhanyayo, iyunithi ukukhanya kwekhandlela (CDLA, CD). Ngenxa yokuthi ukukhanya okukhanyayo kobuhlalu besibani se-LED jikelele kuncane, amandla okukhanya avame ukusetshenziswa kumayunithi wezwe. Ngokuvamile, umthombo wokukhanya uzokhipha ukukhanya kwawo ngezindlela ezihlukene ngezindlela ezihlukene. Ubukhulu bemisebe yokukhanya obubonakalayo obukhishwe ku-engeli enezinhlangothi ezintathu zeyunithi ohlangothini oluthile bubizwa ngokuthi ukuqina kokukhanya, okubizwa ngokuthi ukukhanya kwe-eksisi. Kusukela emcabangweni wamandla kuya emandleni amandla ngesikhathi esifanayo, i-current iyashesha, yamanje iyashesha, ugesi mkhulu; i-current ihamba kancane, amandla kagesi mancane, noma ngesikhathi esilinganayo, lapho i-current yenza umsinga, ugesi mkhulu. Ebuhlaluni besibani se-LED, amandla amakhulu, ayanda ukukhanya komkhiqizo. Ukuthatha ubuhlalu besibani se-LED obuthathu obukhanyayo obukhanyayo be-Yimei Electronics njengesibonelo, lapho ukukhanya kwe-axial kungu-1200mcd, okwamanje kungu-40mA futhi amandla angu-0.48W; ubuhlalu besibani se-LED obumhlophe obuthathu bungaphansi kokukhanya okufanayo, okwamanje yi-18mA, amandla angu-0.24W kuphela angu-0.24w Kungabonakala ukuthi amandla ezibani ezimbili ngaphansi kokukhanya okufanayo ahlukile. Ngakho-ke, abathengi kufanele banake ukukhanya kwe-axis yayo lapho bethenga ubuhlalu besibani se-LED, hhayi amandla.