Ngaphambili, izibane ze-halogen zazihlala zikhethwa ukukhanyisa iimoto.Kwiminyaka yakutshanje, ukusetyenziswa kwe-LED kwisithuthi sonke kwaqala ukukhula ngokukhawuleza.Ubomi benkonzo yezibane ze-halogen zemveli zimalunga neeyure ezingama-500 kuphela, ngelixa ezo zikhanyiso ze-LED eziqhelekileyo zifikelela kwiiyure ezingama-25000.Inzuzo yobomi obude phantse ivumela izibane ze-LED ukuba zigubungele umjikelo wobomi besithuthi.
Ukusetyenziswa kwezibane zangaphandle kunye nezangaphakathi, ezifana nesibane sokukhanyisa ngaphambili, isibane somqondiso wokujika, isibane somsila, isibane sangaphakathi, njl.Akunjalo kuphela iinkqubo zokukhanyisa iimoto, kodwa kunye neenkqubo zokukhanyisa ezivela kubathengi be-electronics ukuya kwi-automation equipment.Uyilo lwe-LED kwezi nkqubo zokukhanyisa zikhula ngokuhlukahluka kwaye zihlanganiswe kakhulu, ezibalaseleyo kwiinkqubo zokukhanyisa iimoto.
Ukukhula ngokukhawuleza kwe-LED kwindlela yokukhanyisa imoto
Njengomthombo wokukhanyisa, i-LED ayinabo nje ubomi obude, kodwa ukusebenza kwayo okukhanyayo kungaphezulu kakhulu kwezibane eziqhelekileyo ze-halogen.Ukusebenza okukhanyayo kwezibane ze-halogen yi-10-20 Im / W, kunye nokusebenza okukhanyayo kwe-LED yi-70-150 Im / W.Xa kuthelekiswa nenkqubo yokutshatyalaliswa kobushushu ephazamisekileyo yezibane zendabuko, ukuphuculwa kokusebenza okukhanyayo kuya kugcina amandla kunye nokusebenza kakuhle ekukhanyeni.Ixesha lokuphendula le-nanosecond ye-LED likhuselekile kunexesha lesibini lokuphendula isibane se-halogen, elibonakala ngokukodwa kumgama wokuqhawula.
Ngophuculo oluqhubekayo loyilo lwe-LED kunye nenqanaba lokudibanisa kunye nokuhla kancinci kweendleko, umthombo wokukhanya we-LED uqinisekisiwe kwi-automotive electronics kwiminyaka yakutshanje kwaye waqala ukwandisa ngokukhawuleza isabelo sawo kwiinkqubo zokukhanyisa iimoto.Ngokwedatha ye-TrendForce, izinga lokungena kwezibane ze-LED kwiimoto zabakhweli behlabathi liya kufikelela kwi-60% ngo-2021, kwaye izinga lokungena kwezibane ze-LED kwiimoto zombane liya kuba phezulu, lifikelele kwi-90%.Kuqikelelwa ukuba izinga lokungena liya kunyuka ukuya kuma-72% kunye nama-92% ngokulandelelanayo ngo-2022.
Ukongeza, itekhnoloji ephucukileyo efana nezibane ezikrelekrele, izibane zokuchonga, izibane ezikrelekrele zasemoyeni, iMiniLED/HDR umboniso wemoto nawo ukhawulezise ukungena kwe-LED ekukhanyeni kwemoto.Namhlanje, ngophuhliso lokukhanyisa isithuthi ngokubhekiselele kumntu, umboniso wonxibelelwano, kunye noncedo lokuqhuba, bobabini abavelisi beemoto zemveli kunye nabavelisi bezithuthi zombane baye baqala ukufuna iindlela zokwahlula i-LED.
Ukukhethwa kwe-LED yokuqhuba i-topology
Njengesixhobo sokukhupha ukukhanya, i-LED ngokwemvelo idinga ukulawulwa yisekethe yokuqhuba.Ngokuqhelekileyo, xa inani le-LED likhulu okanye ukusetyenziswa kwamandla kwe-LED kukhulu, kuyimfuneko ukuqhuba (ngokuqhelekileyo amanqanaba amaninzi okuqhuba).Ukuqwalasela ukuhlukahluka kokuhlanganiswa kwe-LED, akukho lula kubaqulunqi ukuyila umqhubi we-LED ofanelekileyo.Nangona kunjalo, kunokucaca ukuba ngenxa yeempawu ze-LED ngokwayo, ivelisa ubushushu obukhulu kwaye idinga ukunciphisa umda wokukhusela, ngoko ke umthombo okhoyo ngoku we-drive yeyona ndlela ingcono ye-LED drive.
Umgaqo wokuqhuba wendabuko usebenzisa inqanaba lamandla apheleleyo e-LEDs kwinkqubo njengesalathisi sokulinganisa nokukhetha abaqhubi be-LED abahlukeneyo.Ukuba i-voltage eya phambili iyonke iphezulu kune-voltage yokufaka, ngoko kufuneka ukhethe i-boost topology ukuhlangabezana neemfuno zombane.Ukuba i-voltage eya phambili iyonke iphantsi kune-voltage yegalelo, kufuneka usebenzise i-topology esezantsi ukuze uphucule ukusebenza kakuhle.Nangona kunjalo, ngokuphuculwa kweemfuno ze-LED dimming umthamo kunye nokuvela kwezinye iimfuno, xa ukhetha abaqhubi be-LED, akufanele sicinge kuphela kwinqanaba lamandla, kodwa siqwalasele ngokupheleleyo i-topology, ukusebenza kakuhle, ukufiphala kunye neendlela zokuxuba umbala.
Ukukhethwa kwe-topology kuxhomekeke kwindawo ethile ye-LED kwinkqubo ye-LED yemoto.Ngokomzekelo, kwi-beam ephezulu kunye ne-headlamp yokukhanyisa imoto, uninzi lwazo luqhutywa yi-topology ephantsi.Eli nyathelo lokuhla lihle kakhulu ekusebenzeni kwe-bandwidth.Inokufezekisa ukusebenza kakuhle kwe-EMI ngoyilo lokumodareyitha kwe-spectrum frequency.Lukhetho olukhuselekileyo lwe-topology kwi-LED drive.Ukusebenza kwe-EMI yokunyusa i-LED drive nako kuhle kakhulu.Xa kuthelekiswa nezinye iintlobo ze-topology, sesona sikimu sincinci sokuqhuba, kwaye sisetyenziswa ngakumbi kwizibane eziphantsi neziphakamileyo kunye nezibane ezingemuva kwiimoto.
Ixesha lokuposa: Dec-06-2022