Waagii hore, nalalka halogen ayaa inta badan loo dooran jiray nalalka baabuurta.Sanadihii la soo dhaafay, codsiga LED-ka ee gaariga oo dhan wuxuu bilaabay inuu si degdeg ah u koro.Nolosha adeeg ee nalalka halogen-dhaqameedka ah waa qiyaastii 500 saacadood, halka tan nalalka LED-yada ee caadiga ahi ay yihiin ilaa 25000 saacadood.Faa'iidada nolosha dheer waxay ku dhowdahay inay u ogolaato nalalka LED inay daboolaan dhammaan wareegga nolosha ee gaariga.
Codsiga nalalka bannaanka iyo gudaha, sida laambada hore ee iftiinka hore, laambada leexashada, nalka dabada, nalka gudaha, iwm., waxay bilaabeen inay u adeegsadaan isha iftiinka LED naqshadeynta iyo isku dhafka.Kaliya maaha nidaamyada nalalka baabuurta, laakiin sidoo kale nidaamyada iftiinka laga bilaabo qalabka elektiroonigga ah ee macaamiisha ilaa qalabka otomaatiga ah ee warshadda.Naqshadaynta LED-yada ee nidaamyadan nalalka ayaa si isa soo taraysa u kala duwanaanaya oo si aad ah isugu dhafan, taas oo si gaar ah caan ugu ah nidaamyada iftiinka baabuurta.
Koritaanka degdega ah ee LED ee nidaamka iftiinka baabuurta
Ilaha nalalka, LED kaliya ma leh nolol dheer, laakiin waxtarkeeda iftiinka ayaa sidoo kale aad uga sarreeya nalalka caadiga ah ee halogen.Waxtarka iftiinka ee nalalka halogen waa 10-20 Im / W, iyo waxtarka iftiinka LED waa 70-150 Im / W.Marka la barbardhigo nidaamka kala daadinta kulaylka khalkhalka leh ee nalalka dhaqameed, hagaajinta waxtarka iftiinka waxay noqon doontaa wax badan oo tamar-badbaadin ah oo hufan oo iftiin leh.Waqtiga jawaabta nanosecond ee LED sidoo kale waa ka badbaado badan yahay nalka halogen ee jawaabta labaad, kaas oo si gaar ah uga muuqda fogaanta bareegga.
Iyadoo horumarinta joogtada ah ee naqshadeynta LED-ka iyo heerka isku-dhafka ah iyo sidoo kale hoos u dhigista tartiib-tartiib ah ee qiimaha, isha iftiinka LED ayaa lagu xaqiijiyay qalabka elektiroonigga ah sannadihii la soo dhaafay waxayna bilaabeen inay si degdeg ah u kordhiyaan qaybtooda hababka iftiinka baabuurta.Sida laga soo xigtay xogta TrendForce, heerka gelitaanka nalalka LED-yada ee baabuurta rakaabka ee adduunka ayaa gaari doona 60% sanadka 2021, iyo heerka gelitaanka nalalka LED ee baabuurta korontada ayaa noqon doona mid sare, oo gaaraya 90%.Waxaa lagu qiyaasaa in heerka galitaanka uu kordho 72% iyo 92% siday u kala horreeyaan 2022.
Intaa waxaa dheer, tignoolajiyada horumarsan sida nalalka hore ee caqliga leh, nalalka aqoonsiga, nalalka jawiga caqliga leh, bandhigga gaadhiga MiniLED/HDR ayaa sidoo kale dardar galiyay galitaanka LED ee iftiinka baabuurta.Maanta, iyada oo la horumarinayo iftiinka baabuurta ee shakhsiyeynta, bandhigga isgaarsiinta, iyo gargaarka wadista, labadaba baabuurta dhaqameed iyo kuwa sameeya baabuurta korontada ayaa bilaabay inay raadiyaan siyaabo lagu kala saaro LED.
Doorashada topology wadista LED
Sida aaladda iftiimisa iftiinka, LED si dabiici ah waxay u baahan tahay in lagu xakameeyo wareegga wadista.Guud ahaan, marka tirada LED ay weyn tahay ama isticmaalka korontada ee LED uu weyn yahay, waxaa lagama maarmaan ah in la wado (sida caadiga ah dhowr heer oo darawalnimo).Iyadoo la tixgelinayo kala duwanaanta isku-dhafka LED-yada, ma fududa naqshadeeyayaasha inay naqshadeeyaan darawal ku habboon LED.Si kastaba ha ahaatee, way caddahay in ay sabab u tahay sifooyinka LED laftiisa, waxay dhalinaysaa kuleyl weyn waxayna u baahan tahay in la xaddido hadda si loo ilaaliyo, markaa isha isha ee joogtada ah waa habka ugu fiican ee LED-ga.
Mabda'a wadista dhaqameedku wuxuu isticmaalaa wadarta guud ee awoodda LED-yada nidaamka sida tilmaame si loo cabbiro loona doorto darawallada LED ee kala duwan.Haddii wadarta korantada hore ay ka sarreyso korantada wax soo gelinta, markaa waxaad u baahan tahay inaad doorato kor u qaadista topology si aad u buuxiso shuruudaha korantada.Haddii wadarta korantada horay u socotaa ay ka hooseyso tamarta wax gelinta, waxaad u baahan tahay inaad isticmaasho topology hoos-u-dhac ah si aad u wanaajiso waxtarka guud.Si kastaba ha ahaatee, iyada oo la wanaajinayo shuruudaha awoodda hoos u dhigista LED iyo soo bixitaanka shuruudaha kale, marka la dooranayo darawalada LED, waa in aan tixgelin kaliya heerka awoodda, laakiin sidoo kale si buuxda u tixgeliyo topology, hufnaanta, dimming iyo hababka isku dhafka midabka.
Doorashada topology waxay kuxirantahay meesha gaarka ah ee LED ee nidaamka LED-ga baabuurta.Tusaale ahaan, laydhka sare ee iftiinka baabuurta, intooda badan waxa u kaxeeya topology-ka hoose.Wadaadkan hoos-u-dhaca ah wuxuu aad ugu fiican yahay waxqabadka bandwidth.Waxa kale oo ay ku gaadhi kartaa waxqabadka EMI wanaagsan iyada oo loo marayo qaabaynta qaabaynta soo noqnoqoshada fidinta.Waa doorasho topology aad u badbaado leh ee wadista LED-ka.Waxqabadka EMI ee kor u qaadista wadista LED sidoo kale waa mid aad u fiican.Marka la barbardhigo noocyada kale ee topologies, waa nidaamka ugu yar ee wadista, waxaana lagu dabaqaa in badan oo hooseeya iyo kuwa sare ee iftiinka iyo nalalka dambe ee baabuurta.
Waqtiga post: Dec-06-2022