Maanta, iyada oo horumarka degdega ah ee LED-yada, LED-yada awoodda sare leh ayaa ka faa'iideysanaya isbeddelka.Waqtigan xaadirka ah, dhibaatada ugu weyn ee farsamada ee nalalka tamarta sare ee LED waa kuleylka kuleylka.Diidmada kulaylka liidata waxay keenaysaa awoodda wadista LED-ka iyo capacitors electrolytic.Waxay noqotay guddi gaaban oo loogu talagalay horumarinta dheeraadka ah ee nalalka LED-ka.Sababta da'da dhicis ee isha iftiinka LED.
Nidaamka nalka ee isticmaalaya isha iftiinka LED, sababtoo ah isha iftiinka LED wuxuu ku shaqeeyaa danab hooseeya (VF = 3.2V), heer sare ah (IF = 300-700mA) xaalad shaqo, markaa kulaylku aad buu u daran yahay.Meesha nalalka dhaqameedku waa cidhiidhi, wayna ku adag tahay hiitarka aagga yar inuu si dhakhso ah u dhoofiyo kulaylka.Inkasta oo la ansixiyay nidaamyada qaboojinta ee kala duwan, natiijadu waa kuwo aan ku qanacsanayn, waxay noqdaan nalalka iftiinka LED-ka dhibaato la'aan.
Waqtigan xaadirka ah, ka dib markii isha iftiinka LED uu shido, 20% -30% tamarta korontada ayaa loo beddelaa tamar iftiin, qiyaastii 70% tamarta korantada ayaa loo beddelaa tamar kuleyl.Sidaa darteed, waa tignoolajiyada muhiimka ah ee qaab dhismeedka nalka LED si loo dhoofiyo tamarta kulaylka badan sida ugu dhakhsaha badan.Tamarta kulaylka waxay u baahan tahay in lagu kala diro iyada oo loo marayo hagida kulaylka, kulaylka kulaylka iyo shucaaca kulaylka.
Hadda aynu falanqeyno waxa sababa dhacdooyinka heerkulka wadajirka ah ee LED:
1. Waxtarka gudaha ee labadu maaha mid sarreeya.Marka elektarooniga lagu daro daloolka, photon-ka lama soo saari karo 100%, taas oo inta badan hoos u dhigta heerka dib u habeynta side ee gobolka PN sababtoo ah "baxa hadda jira".Diidashada waqtiyada danabku waa awooda qaybtan.Taasi waa, waxay u beddeshaa kulaylka, laakiin qaybtani ma qabsanayso qaybta ugu muhiimsan, sababtoo ah waxtarka sawirada gudaha ayaa horeyba ugu dhowaa 90%.
2. Ma jiro mid ka mid ah sawir-qaadayaasha gudaha ka soo baxa oo toogan kara meel ka baxsan chip-ka, qayb ka mid ah sababta ugu weyn ee tan ugu dambeyntii loogu beddelay tamarta kulaylka ayaa ah in tan, loo yaqaan waxtarka quantum-ka dibadda, ay tahay kaliya 30%, kuwaas oo intooda badan loo beddelo kulaylka.
Sidaa darteed, kuleylka kuleylka ayaa ah arrin muhiim ah oo saameynaysa xoogga iftiinka nalalka LED.Kuleylku wuxuu xallin karaa dhibaatada kuleylka kuleylka ee nalalka LED-ka ee iftiinka hooseeya, laakiin kulaylku ma xallin karo dhibaatada kuleylka kuleylka ee nalalka awoodda sare leh.
Xalalka qaboojinta LED:
Diridda kulaylka ee Led inta badan waxay ka bilaabataa laba dhinac: kulaylka kuleyliyaha Led chip ka hor iyo ka dib xirmada iyo daminta kulaylka ee nalka Led.Diidmada kulaylka led waxay inta badan la xiriirtaa substrate-ka iyo habka xulashada wareegga, sababtoo ah LED kasta wuxuu sameyn karaa laambad, sidaas darteed kulaylka ka yimaada chip LED ayaa ugu dambeyntii u kala firdhiyey hawada iyada oo loo marayo guryaha laambada.Haddii kulaylku aanu si fiican u kala bixin, awoodda kulaylka ee chip LED waxay noqon doontaa mid aad u yar, sidaas darteed haddii kulaylka qaar la ururiyo, heerkulka isku xirka chip ayaa si degdeg ah u kordhi doona, iyo haddii uu ka shaqeeyo heerkulka sare muddo dheer, cimriga si degdeg ah ayaa loo soo gaabin doonaa.
Guud ahaan, hiitarka waxaa loo qaybin karaa qaboojin firfircoon iyo qaboojin dadban iyadoo loo eegayo habka kulaylka laga saaray hiitarka. Diidmada kulaylka ee si dabiici ah u daadiya kulaylka isha kulaylka isha iftiinka iftiinka hawada iyada oo loo marayo weelka kulaylka, Saamaynta kulaylku waxay la mid tahay cabbirka weelka kulaylka. Qaboojinta firfircooni waa in si xoog ah looga qaado kulaylka ka soo baxa kulaylka iyada oo loo marayo qalabka qaboojinta sida marawaxada.Waxaa lagu gartaa waxtarka kuleylka sarreeya iyo cabbirka yar ee qalabka. Qaboojinta firfircoon ayaa loo qaybin karaa qaboojinta hawada, qaboojinta dareeraha, qaboojinta kuleylka kuleylka, qaboojinta semiconductor, qaboojinta kiimikada iyo wixii la mid ah.
Guud ahaan, hiitarka caadiga ah ee hawadu qaboojiso waa in ay si dabiici ah u doortaan birta inay noqoto hiitarka.Sidaa darteed, taariikhda horumarinta hiitarka, walxahan soo socda ayaa sidoo kale soo muuqday: radiators aluminium saafi ah, radiators saafi ah oo naxaas ah, iyo tiknoolajiyada isku dhafka ah ee naxaasta-aluminiumka.
Waxtarka guud ee iftiinka LED-ku wuu hooseeyaa, markaa heerkulka wadajirka ah ayaa sarreeya, taasoo keentay nolol gaaban.Si loo dheereeyo nolosha loona yareeyo heerkulka wadajirka, waxaa lagama maarmaan ah in fiiro gaar ah loo yeesho dhibaatada kuleylka kuleylka.