Esikhathini esidlule, izibani ze-halogen zazivame ukukhethwa ukuze kukhanyiswe imoto.Eminyakeni yamuva, ukusetshenziswa kwe-LED kuyo yonke imoto kwaqala ukukhula ngokushesha.Impilo yesevisi yezibani ze-halogen zendabuko icishe ibe ngamahora angama-500 kuphela, kanti eyamalambu ajwayelekile e-LED ifinyelela emahoreni angama-25000.Inzuzo yempilo ende icishe ivumele izibani ze-LED ukumboza wonke umjikelezo wempilo yemoto.
Ukusetshenziswa kwezibani zangaphandle nezangaphakathi, njengezibani zangaphambili zokukhanyisa, isibani sesignali esiphendukayo, isibani somsila, isibani sangaphakathi, njll., saqala ukusebenzisa umthombo wokukhanya we-LED wokuklama nokuhlanganiswa.Akuzona kuphela izinhlelo zokukhanyisa izimoto, kodwa futhi nezinhlelo zokukhanyisa kusuka ku-electronics yabathengi kuya kumishini ye-automation factory.Imiklamo ye-LED kulezi zinhlelo zokukhanyisa iya ngokuya ihlukahluka futhi ihlanganiswe kakhulu, evelele kakhulu ezinhlelweni zokukhanyisa izimoto.
Ukukhula okusheshayo kwe-LED ohlelweni lokukhanyisa izimoto
Njengomthombo wokukhanyisa, i-LED ayinayo nje impilo ende, kodwa ukusebenza kahle kwayo okukhanyayo nakho kudlula kakhulu izibani ze-halogen ezijwayelekile.Ukusebenza okukhanyayo kwamalambu e-halogen yi-10-20 Im/W, kanti ukusebenza kahle okukhanyayo kwe-LED kungu-70-150 Im/W.Uma kuqhathaniswa nesistimu yokukhipha ukushisa ephazamisekile yezibani zendabuko, ukuthuthukiswa kokusebenza kahle okukhanyayo kuzokonga amandla futhi kusebenze kahle ekukhanyeni.Isikhathi sokuphendula se-nanosecond ye-LED naso siphephile kunesikhathi sokuphendula sesibani se-halogen sesibili, esibonakala ikakhulukazi ebangeni lokubhuleka.
Ngokuthuthukiswa okuqhubekayo komklamo we-LED nezinga lenhlanganisela kanye nokwehliswa kancane kancane kwezindleko, umthombo wokukhanya we-LED uqinisekisiwe kuma-electronics wezimoto eminyakeni yamuva futhi waqala ukwandisa ngokushesha isabelo sawo ezinhlelweni zokukhanyisa izimoto.Ngokwemininingwane yeTrendForce izinga lokungena kwamalambu eLED ezimotweni ezithwala abantu emhlabeni lizofinyelela ku-60% ngo-2021, kanti nezinga lokungena kwamalambu e-LED ezimotweni zikagesi lizoba phezulu, lifinyelele ku-90%.Kulinganiselwa ukuthi izinga lokungena lizokhuphuka lifinyelele ku-72% kanye nama-92% ngokulandelanayo ngo-2022.
Ngaphezu kwalokho, ubuchwepheshe obuthuthukisiwe obufana nezibani zangaphambili ezihlakaniphile, izibani ezihlonzayo, izibani ezihlakaniphile zasemoyeni, isibonisi semoto se-MiniLED/HDR nakho kusheshise ukungena kwe-LED ekukhanyeni kwemoto.Namuhla, ngokuthuthukiswa kokukhanyisa kwezimoto maqondana nokwenza kube ngokwakho, isibonisi sokuxhumana, nosizo lokushayela, bobabili abakhiqizi bezimoto zendabuko kanye nabakhiqizi bezimoto zikagesi sebeqalile ukufuna izindlela zokuhlukanisa i-LED.
Ukukhethwa kwe-topology yokushayela ye-LED
Njengedivayisi ekhipha ukukhanya, i-LED ngokwemvelo idinga ukulawulwa yisekethe yokushayela.Ngokuvamile, lapho inombolo ye-LED inkulu noma ukusetshenziswa kwamandla kwe-LED kukhulu, kuyadingeka ukushayela (ngokuvamile amazinga amaningana okushayela).Uma kucatshangelwa ukuhlukahluka kwezinhlanganisela ze-LED, akulula kangako kubaklami ukuklama umshayeli ofanele we-LED.Kodwa-ke, kungase kucace ukuthi ngenxa yezici ze-LED ngokwayo, ikhiqiza ukushisa okukhulu futhi idinga ukukhawulela okwamanje ukuze ivikeleke, ngakho-ke idrayivu yomthombo wamanje eqhubekayo iyindlela engcono kakhulu yokushayela ye-LED.
Isimiso sokushayela esivamile sisebenzisa ingqikithi yamandla eleveli yama-LED ohlelweni njengenkomba yokukala nokukhetha abashayeli be-LED abahlukene.Uma isamba se-voltage eya phambili ingaphezulu kwe-voltage yokufaka, kuzomele ukhethe i-boost topology ukuze uhlangabezane nezidingo zamandla kagesi.Uma isamba sevolthi eya phambili iphansi kune-voltage yokufaka, udinga ukusebenzisa i-topology yokuya phansi ukuze uthuthukise ukusebenza kahle kukonke.Kodwa-ke, ngokuthuthukiswa kwezidingo ze-LED dimming kanye nokuvela kwezinye izidingo, lapho kukhethwa abashayeli be-LED, akufanele sicabangele izinga lamandla kuphela, kodwa futhi sicabangele ngokugcwele i-topology, ukusebenza kahle, ukufiphala kanye nezindlela zokuxuba imibala.
Ukukhethwa kwe-topology kuncike endaweni ethile ye-LED ohlelweni lwe-LED yemoto.Isibonelo, ku-beam ephezulu kanye ne-headlamp yokukhanyisa imoto, iningi lazo liqhutshwa i-topology yezinyathelo eziya phansi.Lokhu kushayela okuya phansi kuhle kakhulu ekusebenzeni komkhawulokudonsa.Ingakwazi futhi ukufeza ukusebenza okuhle kwe-EMI ngokwakhiwa kokuguquguquka kwe-spectrum frequency modulation.Kuyinketho ephephe kakhulu ye-topology kudrayivu ye-LED.Ukusebenza kwe-EMI kwe-boost LED drive nakho kuhle kakhulu.Uma kuqhathaniswa nezinye izinhlobo ze-topology, iwuhlelo oluncane kakhulu lokushayela, futhi lusetshenziswa kakhulu kumalambu aphansi naphezulu namalambu angemuva ezimoto.
Isikhathi sokuthumela: Dec-06-2022