Khetha Amakhono we-chip wemojuli yokukhanya kwe-LED

Intengo yamamojula omthombo wokukhanya we-LED yakhiwe esikhathini esizayo esiseduze, futhi ama-LED aye aqashelwa kabanzi njengemithombo yokukhanya yokuhlanza okuluhlaza kanye nemvelo. Imithombo yokukhanya ye-LED inempilo ende yesevisi, ukonga amandla nokonga amandla, ukusetshenziswa okulula nokulula, kanye nezindleko zokusebenzisa okuphansi. Ngakho - ke. Kusukela ngo-2008, ukuthunyelwa kwaminyaka yonke kwezihlalo zokukhanyisa ekhaya emhlabeni wonke bekungama-yuan ayizigidi eziyizinkulungwane ezingama-50. Ubuchwepheshe bemithombo yokukhanya ye-LED buye bukhula ngokukhula, futhi ukugeleza kokukhanya kwethayela ngalinye kuye kwanda ngokushesha, okwenza ukuba kuncishiswe intengo unyaka nonyaka. Imakethe enkulu kanye nesidingo esiqhubekayo sokukhula okuzinzile kwamalambu aluhlaza e-LED kuzoba imakethe enkulu ye-tsunami embonini yesekethe ehlanganisiwe ngemuva kweVCD, iDVD, izingcingo eziphathwayo kanye neMP3! Ukusebenza okuphezulu okonga amandla aphezulu, impilo ende, nokuvikelwa kwemvelo kwezibani ze-LED ngokuvamile kuyabonwa. 1. I-LED ephezulu -yonga amandla: Umshayeli we-DC, ukusetshenziswa kwamandla okuphansi kakhulu (i-tube eyodwa 0.03 1W) Ukuguqulwa kwamandla okukhanya kagesi kusondele ku-100, umphumela ofanayo wokukhanyisa ungaphezu kuka-80% wokonga amandla kunemithombo yokukhanya evamile. 2. Impilo ende ye-LED: Umthombo wokukhanya we-LED ubizwa nge-longevity light. Imithombo yokukhanya ebandayo eqinile, ukupakishwa kwe-epoxy resin, futhi azikho izingxenye ezixekethile emzimbeni wesibani. Awekho amaphutha afana nokukhanyisa i-filament, ukucwiliswa kokushisa, nokukhanya okusheshayo. Ngaphezu kokungaphezu kwalokho. 3. I-LED Evikela Imvelo Evikelayo: I-LED ingumthombo wokukhanya okuluhlaza, futhi izinzuzo zokuvikela imvelo zingcono. Ayikho imisebe ye-ultraviolet ne-infrared ku-spectrum, ama-calories aphansi kanye ne-flash yamahhala, ayikho imisebe, futhi imfucuza ingagaywa kabusha. Akukho ukungcola ngaphandle kwe-mercury, imithombo yokukhanya ebandayo, engathinteka ngokuphepha. Ingowomthombo wokukhanyisa oluhlaza ojwayelekile. Izici zomsebenzi zemojula yomthombo wokukhanya we-LED ziphansi kakhulu ku-VF voltage yemithombo yokukhanya ye-LED. Ngokuvamile, ingu-2.75 3.8V. Ngakho-ke, i-voltage ephumayo yedrayivu ye-LED IC yi-VFXN noma i-VFX1, futhi i-IF igcina ukugeleza njalo ku-15 1,400ma. Umthombo wokukhanya we-LED osetshenziswa amalambu e-LED unezinhlobo ezimbili: amandla amancane (IF 15 20mA) kanye namandla aphezulu (IF angaphezu kuka-200mA). I-LED yamandla amancane isetshenziswa kakhulu njengamalambu elanga e-LED, amalambu okuhlobisa, namalambu e-grille. I-LED enamandla amakhulu isetshenziselwa ukukhanyisa komndeni, izibani, izibani ezingezansi, izibani zodonga, izibani zasemgwaqweni, izibani zomhubhe, izibani zomsebenzi wemoto, njll. Umthombo wokukhanya we-LED wamandla iyi-low-voltage kanye nedivayisi enkulu eqhutshwa njengamanje. Amandla ayo akhanyayo anqunywa amandla amanje ageleza ku-LED. Okwamanje kuzodala ukuncishiswa kokukhanya kwe-LED, futhi okwamanje kuncane kakhulu kuzothinta amandla akhanyayo e-LED. Ngakho-ke, umshayeli we-LED udinga ukuhlinzeka ngamandla amanje wamanje ukuze aqinisekise ukuphepha kwama-LED aphezulu, futhi ngesikhathi esifanayo afinyelele amandla okukhanyisa afanelekile. Emkhakheni wokukhanyisa kwe-LED, ukuze ubonise izici zokulondoloza amandla okukhanya kwe-LED nokuphila isikhathi eside, kubalulekile ukukhetha kahle umshayeli we-LED IC. Ngaphandle komdlalo omuhle we-IC womshayeli, izinzuzo zokukhanyisa kwe-LED azikwazi ukuboniswa. Umthombo wokukhanya ohlangothini lwe-LED Imojula yokubumba umjovo we-LED Umugqa wokukhanya we-LED weglue wokunisela ungangeni manzi Imojula ye-Hongyan cabin three-one Izidingo zemojula yomthombo wokukhanya we-LED wamashiphu okushayela aphansi-voltage kufanele zihlangatshezwe nobubanzi be-voltage okufakwayo ye-chip yokushayela, DC 8 40V, ukumboza izidingo zohlelo olubanzi. Ikhono lokumelana nokucindezela likhulu kuno-45V. Uma okokufaka kuyi-AC 12V noma 24V, i-voltage elula yokulungisa ibhuloho izoguquguquka ne-voltage yegridi, ikakhulukazi uma i-voltage iphezulu, i-voltage ye-DC ephumayo izoba phezulu. Uma i-IC yokushayela ingenalo ibanga le-voltage yokufaka elibanzi, ngokuvamile izongenwa lapho i-voltage yegridi yamandla ikhuphuka, ngaleyo ndlela ishise umthombo wokukhanya we-LED. 2. Okukhiphayo okujwayelekile kwe-chip yokushayela kudinga okukhulu kuno-1.2 1.5A. Njengomthombo wokukhanya we-LED wokukhanyisa, amandla okuzisholo omthombo wokukhanya we-LED wamandla angu-1W ngu-350mA, futhi ukusebenza okusebenzayo okwamanje komthombo wokukhanya we-LED wamandla angu-3W ngu-700mA. Imithombo yokukhanya ye-LED enamandla amakhulu idinga isimanje esikhulu, ngakho-ke umshayeli we-IC okhethwe izibani ze-LED kufanele abe nokukhiphayo okwanele kwamanje. Lapho uklama imikhiqizo, umsebenzi we-IC yomshayeli kufanele usetshenziselwe ukusebenza ku-70-90% wendawo yokusebenza engcono kakhulu engu-70-90% womkhiqizo ogcwele womthwalo. Ama-ICs okushayela usebenzisa umthamo ogcwele wamanje wokuphuma komthwalo awahlakazwa esikhaleni esincane sezibani, okungaholela kalula ekukhathaleni nasekuhlulekeni kwangaphambi kwesikhathi kwesibani. 3. Umphumela wamanje we-chip yokushayela kufanele ugcinwe ungashintshi, ukuze i-LED ikwazi ukukhanya ngokuzinzile ngaphandle kokukhanyisa. Iqoqo elifanayo lama-chips okushayela lisetshenziswa ngaphansi kwezimo ezifanayo, futhi okukhiphayo kwamanje kufanele kuhambisane ngangokunokwenzeka, okungukuthi, i-discreteness kufanele ibe encane, ukuze iqinisekise ukusebenza kahle nokuhleleka lapho ikhiqiza inani elikhulu lokukhiqiza okuzenzakalelayo. imigqa. Ukuze uthole i-chip ethile eqondile edalulwa okuthile kokuphumayo kwamanje, kuyadingeka ukukhetha okukhethiwe phambi kwefekthri noma ukukufaka emgqeni wokukhiqiza, lungisa inani lokumelana lokumelana nokusetha kwamanje ebhodini le-PCB, ukuze izibani ze-LED -ibhodi lamanje lokushayela elikhiqizwa ibhodi le-PCB Ukukhanya nokukhanya komthombo wokukhanya kuyahambisana nokugcina ukuhambisana komkhiqizo wokugcina.