Taw qhia: Chen shuming thiab lwm tus los ntawm yav qab teb University of Science thiab thev naus laus zis sib txuas ntawm kev siv pob tshab indium zinc oxide li cov nruab nrab electrode. Cov Diode tuaj yeem ua haujlwm nyob rau hauv qhov zoo thiab tsis zoo hloov tshiab mus los, nrog sab nraud Quantum tau ntawm 20.0,09% thiab 21.15%, feem. Ib qho ntxiv, los ntawm txuas ntau cov kab ke sib txuas nrog cov khoom siv, cov vaj huam sib luag tuaj yeem cuam tshuam ncaj qha los ntawm tsev neeg lub hwj txwv tsis muaj qhov kev xav tau ntawm cov nyom. Nyob rau hauv lub tsav ntawm 220 V / 50 HZ, lub zog hluav taws xob ntawm tus liab ntsaws thiab lub vaj huam sib luag yog 15.70 LM W-1, thiab cov txiaj ntsig kho tau tuaj yeem ncav cuag li 25834 CD M-2.
Lub teeb qhib diodes (coj) tau dhau los ua cov kev tsim teeb pom kev zoo, sib ntsib hauv ntiaj teb no rau kev ua haujlwm thoob ntiaj teb thiab ib puag ncig kev ruaj khov. Raws li Semiconductor Pn Diode, LED tsuas yog ua haujlwm hauv qab tsav ntawm tsawg-voltage ncaj qha (DC). Vim tias unidirectional thiab kev txhaj tshuaj tas mus tas li thiab joule cua kub muaj nyob hauv lub cuab yeej, yog li txo kev ua haujlwm ruaj khov ntawm LED. Tsis tas li ntawd, lub zog hluav taws xob hluav taws xob feem ntau yog raws cov cuab yeej hluav taws xob qib siab, thiab ntau lub teeb LED tsis tuaj yeem siv cov hluav taws xob siab tam sim no. Yog li ntawd, thaum coj tau tsav los ntawm kev siv hluav taws xob hauv tsev neeg, yuav tsum muaj ib qho kev sib cav ntxiv AC-voltage los hloov cov hluav taws xob siab rau hauv qis-voltage dc zog. Ib txwm ac-dc converter suav nrog tus transformer rau txo cov hluav taws xob loj thiab cov duab rectifier puag ncig rau kev kho lub ntsej muag ntawm AC YOOJ YIM (Saib Daim Duab 1a). Txawm hais tias hloov dua siab tshiab ntawm feem ntau AC-DC conterters tau ncav ntau dua 90%, tseem muaj lub zog poob thaum lub sijhawm hloov dua siab tshiab. Tsis tas li ntawd, los kho qhov ci ci ntawm LED, ib qho kev tsav tsheb muaj siab yuav tsum tau siv los tswj cov DC cov khoom siv hluav taws xob zoo thiab muab cov LED (saib cov LED (saib cov LED (saib cov LED (saib cov LED (saib cov LED (saib cov LED (saib ntxiv daim duab 1b).
Kev ntseeg tau ntawm tus neeg tsav tsheb yuav cuam tshuam txog lub teeb taus LED. Yog li, qhia Ac-DC cov neeg tsav tsheb AC-DC tsis yog cov nqi ntxiv (suav nyiaj rau txog li 17% ntawm tag nrho cov teeb hluav taws xob), tab sis kuj tseem ua rau lub teeb ntev ntawm LED teeb. Yog li ntawd, txhim kho LED lossis electroluminescent (el) cov cuab yeej uas tuaj yeem ua ncaj qha los ntawm 50 hz / 60 hz yam tsis tas yuav muaj cov khoom siv hluav taws xob hauv tshuab hluav taws xob yog qhov tsim nyog.
Nyob rau hauv ob peb caug xyoo dhau los, ob peb ac driver electroluminescent (AC-EL) cov khoom siv tau pom. Ib tus neeg raug pob hluav taws xob muaj cov hmoov fluorescent muaj dej pleev cov fluorescent txheej nruab nrab ntawm ob qho txheej txheem insulating (Daim Duab 2a). Kev siv cov rwb thaiv cov txheej tiv thaiv kev txhaj tshuaj ntawm sab nraud them cov thauj khoom sab nraud, yog li tsis muaj qhov tam sim no ntws los ntawm lub cuab yeej. Cov cuab yeej muaj cov haujlwm ntawm lub capacitor, thiab hauv qab tsav ntawm A Ac Fais Fab ua ke tuaj yeem yog qhov chaw ntawm kev ntes khoom rau lub emission txheej. Tom qab tau txais txaus lub zog kev siv lub zog, hluav taws xob sib tsoo nrog lub luminescence center, tsim kom muaj kev lom zem thiab emitting teeb. Vim tias qhov tsis muaj peev xwm kom txhaj hluav taws xob los ntawm sab nraud ntawm cov hluav taws xob, qhov ci ci thiab ua tau qis dua, uas txwv lawv cov ntawv thov hauv lub teeb pom kev zoo thiab zaub.
Txhawm rau txhim kho nws cov kev ua tau zoo, cov neeg tau tsim AC cov pob hluav taws xob nrog ib qho rwb thaiv ib daim duab 2b). Nyob rau hauv tus qauv no, thaum lub voj voog ib nrab ntawm AC tsav, tus nqi them yog txhaj ncaj qha rau hauv cov txheej txheem emission los ntawm cov hluav taws xob sab nraud; Kev ua kom zoo ntawm lub teeb pom kev tshiab tuaj yeem pom los ntawm kev ua haujlwm nrog lwm cov nqi them tus nqi tsim tsim tau sab hauv. Txawm li cas los xij, thaum lub voj voog tsis zoo ntawm AC tsav, cov khoom siv uas muaj teeb meem tsuas yog tshwm sim thaum lub teeb pom kev no yog qis dua li DC cov khoom siv. Tsis tas li ntawd, vim muaj cov yam ntxwv ntawm cov khoom siv hluav taws xob, cov khoom siv hluav taws xob ua tau zoo ntawm ob peb lub zog AC Power
Tsis ntev los no, ib tug neeg thov ib qho cuab yeej hluav taws xob uas tuaj yeem ua haujlwm ntawm kev ua haujlwm ntau ntawm 50 HZ / 60 HZ. Cov cuab yeej no muaj ob lub dc li (saib Daim Duab 2C). Los ntawm hluav taws xob luv luv ntawm cov hluav taws xob ntawm ob lub khoom siv thiab txuas cov hluav taws xob hauv qab no rau AC Powerource, ob lub cuab yeej tuaj yeem hloov kho. Los ntawm cov kev xav ntawm Circuit Courtive, qhov AC-DC cov khoom no tau txais los ntawm kev sib txuas rau tom ntej ntaus ntawv thiab cov cuab yeej rov qab hauv koob. Thaum lub cuab yeej rau pem hauv ntej tig, lub cuab yeej rov qab yog muab tua, ua yeeb yam raws li lub resistor. Vim tias muaj kev tiv thaiv, lub tshuab hluav taws xob yog qhov ua tau qis. Tsis tas li ntawd, AC lub teeb-emitting cov khoom tsuas yog ua haujlwm ntawm cov hluav taws xob tsawg thiab tsis tuaj yeem ncaj qha nrog 110 V / 220 V txheem hluav taws xob. Raws li qhia hauv daim duab ntxiv 3 thiab cov lus qhia ntxiv ntxiv rau cov khoom siv AC-DC hluav taws xob tau qis dua li ntawm DC cov khoom siv. Txog tam sim no, tsis muaj Ac-DC lub zog ntaus ntawv uas tuaj yeem raug tsav ncaj qha los ntawm cov hluav taws xob hauv tsev ntawm 110 hli V, 50 HZ, thiab muaj kev ua haujlwm siab thiab ntev lifespan.
Chen shet thiab nws pab neeg los ntawm yav qab teb University of Science thiab thev naus laus zis tau tsim cov duab kos duab uas siv pob tshab txhais tau indium zinc oxide li cov nruab nrab electrode. Cov Diode tuaj yeem ua haujlwm nyob rau hauv qhov zoo thiab tsis zoo hloov tshiab mus los, nrog sab nraud Quantum tau ntawm 20.0,09% thiab 21.15%, feem. Tsis tas li ntawd, los ntawm txuas ntau cov kab ke sib txuas nrog cov khoom siv hluav taws xob muaj zog ntawm tsev neeg muaj peev xwm ua haujlwm hauv tsev neeg lub zog yog 15,7 xyoo Cov kev tsim kho ntsaws thiab ua si Quantum DOT LED Vaj huam sib luag tuaj yeem tsim kev lag luam, muaj txiaj ntsig zoo, muaj peev xwm ruaj khov los ntawm tsev neeg lub teeb hluav taws xob.
Coj los ntawm teeb pom kev zoo ingchina.com
Lub Sijhawm Post: Jan-14-2025