Intshayelelo kumqhubi we-LED
Ii-LED zizixhobo ze-semiconductor ezithintekayo kunye neempawu zeqondo lokushisa elibi.Ngoko ke, kufuneka izinze kwaye ikhuselwe ngexesha lenkqubo yesicelo, ekhokelela kumbono womqhubi.Izixhobo ze-LED zineemfuno ezinzima zokuqhuba amandla.Ngokungafaniyo ne-incandescent bulbs eziqhelekileyo, ii-LED zinokuqhagamshelwa ngokuthe ngqo kumbane we-220V AC.
Umsebenzi womqhubi we-LED
Ngokwemigaqo yamandla egridi yamandla kunye neemfuno zeempawu zombane womqhubi we-LED, la manqaku alandelayo kufuneka aqwalaselwe xa ukhetha kwaye uyila umbane womqhubi we-LED:
Ukuthembeka okuphezulu: ngakumbi njengomqhubi wezibane zesitalato ze-LED.Ukugcinwa kunzima kwaye kuyabiza kwiindawo eziphakamileyo.
Ukusebenza okuphezulu: Ukusebenza okukhanyayo kwee-LED kuncipha ngokunyuka kwamaqondo obushushu, ngoko ke ukutshatyalaliswa kobushushu kubaluleke kakhulu, ngakumbi xa umbane ufakwe kwibhalbhu.I-LED yimveliso egcina amandla kunye nokusebenza kakuhle kwamandla okuqhuba, ukusetyenziswa kwamandla aphantsi kunye nokuveliswa kobushushu obuphantsi kwisibane, okunceda ukunciphisa ukunyuka kweqondo lokushisa kwesibane kunye nokulibazisa ukukhanya kwe-LED.
Umba wamandla aphezulu: Umba wamandla yimfuneko yegridi yamandla kumthwalo.Ngokubanzi, akukho zikhombisi ezinyanzelekileyo zezixhobo zombane ezingaphantsi kwe-70 watts.Nangona umba wamandla wesixhobo sombane esinamandla aphantsi usezantsi kakhulu, unempembelelo encinci kwigridi yamandla.Nangona kunjalo, ukuba izibane zivuliwe ebusuku, imithwalo efanayo iya kugxininiswa kakhulu, eya kubangela imithwalo enzima kwigridi.Kuthiwa kumqhubi we-LED we-30 ukuya kwi-40 watts, kunokubakho iimfuno ezithile zesalathiso sezinto zamandla kwixesha elizayo elikufutshane.
Umgaqo womqhubi we-LED
Ijika lobudlelwane phakathi kwe-voltage yangaphambili (VF) kunye ne-front current (IF).Inokubonwa kwigophe ukuba xa i-voltage yangaphambili idlula i-threshold ethile (malunga ne-2V) (edla ngokubizwa ngokuba yi-on-voltage), inokuthi icingelwe ukuba i-IF kunye ne-VF ziyalingana.Jonga le theyibhile ingezantsi ngeempawu zombane zee-LED zangoku eziqaqambileyo.Inokubonwa kwitheyibhile ukuba i-IF ephezulu yee-LED zangoku eziqaqambileyo zinokufikelela kwi-1A, ngelixa i-VF ihlala i-2 ukuya kwi-4V.
Ekubeni iimpawu zokukhanya ze-LED zidla ngokuchazwa njengomsebenzi wangoku kunomsebenzi wombane, oko kukuthi, ijika lobudlelwane phakathi kwe-flux ekhanyayo (φV) kunye ne-IF, ukusetyenziswa komqhubi womthombo wangoku oqhubekayo kunokulawula ngcono ukukhanya. .Ukongeza, ukuhla kwamandla ombane angaphambili kwe-LED kunoluhlu olukhulu (ukuya kuthi ga kwi-1V okanye ngaphezulu).Njengoko kunokubonwa kwi-curve ye-VF-IF kulo mfanekiso ungentla, utshintsho oluncinci kwi-VF luya kubangela utshintsho olukhulu kwi-IF, okubangelwa ukukhanya okukhulu kunye noshintsho olukhulu.
Ijika lobudlelwane phakathi kobushushu be-LED kunye ne-luminous flux (φV).Lo mzobo ungezantsi ubonisa ukuba ukukhanya okukhanyayo kuhambelana ngokungafaniyo nobushushu.I-flux ekhanyayo kwi-85 ° C sisiqingatha se-flux ekhanyayo kwi-25 ° C, kunye nemveliso ekhanyayo kwi-40 ° C ngamaxesha angama-1.8 okukhanya okukhanyayo kwi-25 ° C.Utshintsho lobushushu lukwanefuthe elithile kubude be-wavelength ye-LED.Ngoko ke, ukuchithwa kakuhle kobushushu sisiqinisekiso sokuqinisekisa ukuba i-LED igcina ukukhanya okuqhubekayo.
Ke ngoko, ukusebenzisa umthombo wamandla ombane rhoqo ukuqhuba akunakuqinisekisa ukuhambelana kokukhanya kwe-LED, kwaye kuchaphazela ukuthembeka, ubomi kunye nokuthomalalisa ukukhanya kwe-LED.Ke ngoko, ii-LED eziqaqambileyo zihlala ziqhutywa ngumthombo okhoyo ngoku.
Ixesha lokuposa: Sep-03-2021