Ukuveliswa kwee-LEDs (i-light emitting diodes) yayiyinkqubo yezigaba ezininzi ezibandakanya iminikelo evela kwizazinzulu ezininzi. Nanga amanye amaxesha abalulekileyo embali ekuyilweni kwee-LEDs:
Ithiyori yangaphambili kunye nemifuniselo:
1907:Isazinzulu saseBritane u-HJ Round waqala waqaphela ukuba i-semiconductor material silicon carbide (SiC) ikhupha ukukhanya xa kufakwa umbane. Le yayiyeyokuqala erekhodiweyo ye-electroluminescence phenomenon yezinto ze-semiconductor.
1920s:Isazinzulu saseRashiya uOleg Losev safunda ngakumbi ngesi siganeko saza sapapasha iphepha elithetha ngemigaqo yee-LED ngowe-1927, kodwa akuzange kutsale ngqalelo yabaninzi ngelo xesha.
Ukuphuhliswa kwee-LED ezibonakalayo:
1962:U-Nick Holonyak Omnci., injineli esebenza kwiGeneral Electric (GE) ngelo xesha, wayila i-LED yokuqala ebonakalayo ebonakalayo (i-LED ebomvu). UHolonyak uyaziwa ngokuba ngu "Yise wee-LEDs".
1972:M. George Craford, umfundi waseHolonyak, wasungula i-LED yokuqala ephuzi kwaye waphucula kakhulu ukukhanya kwe-LED ebomvu kunye ne-orenji. Wenza uphuculo olusekelwe kwi-gallium nitride phosphorus (GaAsP) izinto zokwandisa ukukhanya kwee-LED eziphindwe kalishumi.
Ngoo-1970 noo-1980: Ukuqhubela phambili kweteknoloji kwakhokelela ekudalweni kwee-LED ngemibala emininzi, kuquka eluhlaza, emthubi, kunye neorenji.
Ukuphumelela kwe-LED eluhlaza:
1990s:Izazinzulu zaseHitachi naseNichia, ngakumbi uShuji Nakamura, zenze ii-LED ezikhanyayo eziluhlaza. Oku yaba yinkqubela enkulu kusetyenziswa imathiriyeli ye-gallium nitride (GaN). Ukuveliswa kwee-LED eziluhlaza okwesibhakabhaka kwenza imiboniso enemibala egcweleyo kunye nee-LED ezimhlophe zinokwenzeka.
2014:UShuji Nakamura, u-Isamu Akasaki, kunye no-Hiroshi Amano bawongwa ngeBhaso leNobel kwiFiziksi ngomsebenzi wabo kwii-LED eziluhlaza.
Ukuphuhliswa kwee-LED eziMhlophe:
Ii-LED ezimhlophe ngokuqhelekileyo zidalwe ngokudibanisa ii-LED eziluhlaza kunye ne-phosphors. Ukukhanya okuluhlaza okwesibhakabhaka okuvela kwi-LED eluhlaza okwesibhakabhaka kuyayivuyisa iphosphor, ethi emva koko ikhuphe ukukhanya okutyheli, kwaye indibaniselwano yezi zimbini ivelisa ukukhanya okumhlophe.
Ukuqhubela phambili kwi-teknoloji ye-LED kubangele uluhlu olubanzi lwemibala ye-LED kungekhona nje kwibala elibonakalayo, kodwa nakwi-ultraviolet kunye ne-infrared ranges. Namhlanje, ii-LED zisetyenziswa kwiinkqubo ezahlukeneyo, kubandakanywa iziboniso, ukukhanya, izibane zesalathisi, kunye nonxibelelwano.
Oku kulandelayo sazisa ulwahlulo olusisiseko kunye nokusetyenziswa kwe-LED
● Ukuhlelwa ngamandla emveliso: 0.4W, 1.28W, 1.4W, 3W, 4.2W, 5W, 8W, 10.5W, 12W, 15W, 18W, 20W, 23W, 25W, 30W, 45W, 20W, 10W, 1 , 200W, 300W, njl.
● Ukuhlelwa ngombane ophumayo: DC4V, 6V, 9V, 12V, 18V, 24V, 36V, 42V, 48V, 54V, 63V, 81V, 105V, 135V, njl.
● Ukuhlelwa ngokwesakhiwo sembonakalo: iintlobo ezimbini: ibhodi ye-PCBA engenanto kunye neqokobhe.
● Ukuhlelwa ngokwesakhiwo sokhuseleko: iindidi ezimbini: ezizimeleyo kunye nezingekho zodwa.
● Ukuhlelwa kwezinto zamandla: kunye nokulungiswa kwezinto zamandla kunye nangaphandle kwamandla.
● Ukuhlelwa ngokusebenza kokungena manzi: ukukhuselwa kwamanzi kunye nokungangeni manzi.
● Ukuhlelwa ngendlela yokuvuselela: ukuzivuselela kunye nokuvuselela kwangaphandle.
● Ukuhlelwa nge-topology yesiphaluka: i-RCC, i-Flyback, iPhambili, i-Half-Bridge, i-Full-Bridge, i-Push-PLL, i-LLC, njl.
● Ukuhlelwa ngendlela yokuguqula: AC-DC kunye ne-DC-DC.
● Ukuhlelwa ngokusebenza okuphumayo: i-voltage eqhubekayo, i-voltage engaguqukiyo kunye neyombini yangoku kunye ne-voltage eqhubekayo.
Ukusetyenziswa kombane womqhubi we-LED:
Isetyenziselwa izibane, izibane zekhabhathi, izibane zasebusuku, izibane zokukhusela amehlo, izibane zesilingi ze-LED, iikomityi zezibane, izibane ezifihliweyo, izibane zangaphantsi kwamanzi, iiwasha zodonga, izibane zemvula, izibane zesitalato, iibhokisi zokukhanya zebhodi, izibane zentambo, izibane ezisezantsi, izibane ezikhethekileyo, inkwenkwezi. izibane, izibane zokulinda, izibane zodonga, izibane zodonga, izibane eziguquguqukayo, izibane zebhanti, izibane ze-piranha, izibane ze-fluorescent, izibane eziphakamileyo, izibane zebhulorho, izibane zemigodi, izibane, izibane eziphuthumayo, izibane zetafile, ukukhanya, izibane zendlela, izibane ezonga amandla, iimoto ezisemva, izibane zengca, izibane ezinemibala, izibane zekristale, izibane zegrille, izibane zetonela, njl.
Singumnikezeli wombane we-LED oqeqeshiweyo eTshayina, wamkelekile ukujongaikhathalogu yethu yemveliso.
Nceda uqhagamshelane neemodeli ezininzi, uxhase iimveliso ezilungiselelwe.
Ixesha lokuposa: Aug-03-2024