Thib peb, cov khoom siv hluav taws xob ua haujlwm ntawm LED teeb hlaws yog tsim.
Raws li cov txiaj ntsig kev sim, qhov qis dua qhov kev tsav tsheb tam sim no, qhov tsawg dua qhov kub ntawm LED teeb dawb tawm. Ntawm chav kawm, qhov tsawg brightness nws emits. Raws li kev soj ntsuam, hauv kev tsim ntawm LED hnub ci teeb pom kev zoo Circuit Court, kev tsav tsheb tam sim no ntawm LED feem ntau tsuas yog 5-10ma; tus naj npawb ntawm cov hlaws teeb siv hauv cov teeb muaj ntau cov khoom lag luam, xws li ntau dua 500, lossis ntau dua, qhov kev tsav tsheb tam sim no feem ntau tsuas yog 10-15ma, thaum lub sijhawm tsav tsheb tam sim no ntawm kev siv LED teeb pom kev zoo tsuas yog {{ 3}}ma, tsawg tus neeg tsim qhov tam sim no siab dua 20mA.
Thiab cov txiaj ntsig kev sim kuj tseem qhia tau tias nyob rau hauv kev tsav tsheb tam sim no ntawm 14mA, thiab huab cua kub sab hauv mus txog 71 degrees, cov khoom siv hluav taws xob qis yuav poob qis rau xoom hauv 1000 teev thiab 3 hauv 2000 teev, uas qhia tau hais tias lub zog hluav taws xob qis LED no. lub teeb tau mus txog nws qhov siab tshaj plaws siv nyob rau hauv xws li ib puag ncig, uas yog ib hom kev puas tsuaj rau nws.
Vim tias lub rooj tsavxwm laus tsis muaj qhov cua sov ua haujlwm, cov cua sov tsim tawm thaum LED ua haujlwm yog qhov tsis tuaj yeem xa mus rau sab nraud. Qhov no yog ua pov thawj sim. Cov huab cua kub hauv cov phaj laus tau mus txog 101 degree, thiab qhov kub thiab txias ntawm lub npog ntawm cov phaj laus tsuas yog 53 degree, kaum ob degrees sib txawv. Qhov no qhia tau hais tias lub hau yas tsis muaj cov khoom siv hluav taws xob thiab cov cua sov dissipation muaj nuj nqi. Tab sis nyob rau hauv kev tsim cov teeb pom kev zoo, kev ua haujlwm ntawm kev siv hluav taws xob thiab hluav taws kub dissipation yog xam. Yog li ntawd, nyob rau hauv cov ntsiab lus, tus tsim ntawm kev ua hauj lwm hluav taws xob tsis ua hauj lwm ntawm LED teeb hlaws yuav tsum tau raws li qhov tseeb qhov teeb meem. Yog hais tias lub tshav kub conduction thiab tshav kub dissipation muaj nuj nqi ntawm lub teeb yog zoo heev, nws tsis muaj teeb meem hais tias lub tam sim no tsav tsheb ntawm lub LED dawb lub teeb nce me ntsis, vim hais tias lub tshav kub generated los ntawm lub LED teeb hlaws dai yuav raug xa tawm mus rau sab nraud hauv ib qho tam sim ntawd, tsis muaj kev puas tsuaj rau LED, uas yog kev saib xyuas zoo tshaj plaws rau LED.
