Ukutshatyalaliswa kobushushu bee-LED eziphezulu zamandla
I-LED sisixhobo se-optoelectronic, kuphela i-15% ~ 25% yamandla ombane aya kuguqulwa abe ngamandla okukhanya ngexesha lokusebenza kwayo, kwaye umbane oseleyo uphantse ufane.ziguqulwa zibe ngamandla obushushu, okwenza ubushushu be-LED buphakame. Kwii-LED eziphezulu zamandla, ukutshatyalaliswa kobushushu ngumcimbi omkhulu ofuna uphando olukhethekileyo. Umzekelo, ukuba i-photoelectric conversion performance ye-10W emhlophe ye-LED yi-20% njengoko kukhankanyiwe ngasentla, oko kukuthi, i-8W yamandla ombane iguqulwa ibe ngamandla obushushu. Ukuba akukho manyathelo okutshabalalisa ubushushu adityanisiweyo, iqondo lokushisa eliphambili le-LED enamandla amakhulu liya kunyuka ngokukhawuleza. Xa ixabiso layo le-TJ Xa ukunyuka kudlula ubushushu obuphezulu obuvumelekileyo (ngokuqhelekileyo i-150 ℃), i-LED enamandla kakhulu iya konakaliswa ngenxa yokushisa. Ngoko ke, ekuyilweni kwezibane eziphezulu ze-ED, owona msebenzi ubalulekileyo woyilo luyilo lokutshatyalaliswa kobushushu.
Ukongezelela, ekubaleni ukutshatyalaliswa kobushushu bezixhobo zamandla ngokubanzi (ezifana nombane we-1C), nje ngokuba ubushushu be-junction bungaphantsi kobushushu obuvumelekileyo be-junction (ngokuqhelekileyo i-125 ° C), kwanele. Kodwa kwi-high-power LED yoyilo lokutshatyalaliswa kobushushu, imfuno ye-TJ VALUE ingaphantsi kakhulu kune-125 ℃. Isizathu kukuba i-TJ inempembelelo enkulu kwisantya sokutsalwa kokukhanya kunye nexesha lokuphila le-LED: i-TJ ephezulu, i-low light extraction rate kunye ne-shortlife ye-LED.
Indlela yokutshatyalaliswa kobushushu yamandla aphezulu e-LED.
Ii-LED zamandla aphezulu zincamathela ukubaluleka okukhulu ekutshitshiseni ubushushu kuyilo lwesakhiwo. Abanye abaqulunqi banentsimbi enkulu yokucima ubushushu phantsi kwe-fay, enokwenza ubushushu bokufa busasazeke ngaphandle ngephedi yokuchitha ubushushu. Ii-LED ezinamandla amakhulu zithengiswa kwibhodi eprintiweyo (PCB). Umphezulu ophantsi wephedi yokulahla ubushushu udityaniswe ne-copper-clad surface ye-PCB, kwaye umaleko omkhulu we-copper-clad usetyenziswa njengendawo yokuchitha ubushushu. Ukuze kuphuculwe ukusebenza kakuhle kokutshatyalaliswa kobushushu, i-PCB ene-copper-clad kabini isetyenziswa. Esi sesinye sezona zakhiwo zilula zokulahla ubushushu.
Ixesha lokuposa: Mar-02-2022
