Dab tsi yog qhov xim ntawm LED nyob ntawm?
Dab tsi yog qhov xim ntawm LED nyob ntawm?

Video: Dab tsi yog qhov xim ntawm LED nyob ntawm?

Video: Dab tsi yog qhov xim ntawm LED nyob ntawm?
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Cov xim ntawm lub teeb emitted nyob ntawm ntawm cov khoom siv hluav taws xob thiab cov muaj pes tsawg leeg, nrog LEDs feem ntau muab faib ua peb ntu nthwv dej: ultraviolet, pom, thiab infrared. Lub wavelength ntau ntawm cov lag luam muaj LEDs nrog ib lub ntsiab lus tso zis hluav taws xob tsawg kawg yog 5 mW yog 360 txog 950 nm.

Hais txog qhov no, cov xim LED teeb ua haujlwm li cas?

Hais lus nruj me ntsis, tus kheej LED hloov tsis tau xim . Hloov chaw, a xim - hloov LED yog ua los ntawm peb cais LEDs hauv ib lub casing, nrog lub micro-controller ua haujlwm rau lawv. Peb LEDs yog liab, ntsuab thiab xiav, yog li ib qho ntawm cov xim no tuaj yeem tshwm sim ntawm lub sijhawm tshwj xeeb los ntawm kev hla tam sim no los ntawm ib qho LED.

Ntxiv mus, dab tsi yog qhov ua haujlwm voltage rau LED? Feem ntau, rau pem hauv ntej hluav taws xob ntawm ib LED yog nruab nrab ntawm 1.8 thiab 3.3 volts. Nws txawv ntawm cov xim LED . Liab LED Feem ntau poob 1.8 volts, tab sis txij li ob qho tib si hluav taws xob poob thiab lub teeb zaus nce nrog band sib txawv, xiav LED tuaj yeem poob ntawm 3 mus rau 3.3 volts.

Tsuas yog li ntawd, cov xim ntawm LED teeb yog dab tsi?

Cov xim nrov muaj rau LEDs yog "sov dawb" lossis "mos dawb," thiab "ci dawb." Sov dawb thiab mos dawb yuav tsim cov xim daj, nyob ze rau cov teeb pom kev zoo, thaum cov qij sau tias yog xim dawb yuav tsim ib qho xim daj. dawb lub teeb, ze rau nruab hnub thiab zoo ib yam li qhov koj pom hauv khw muag khoom.

Koj puas tuaj yeem hloov xim ntawm LED teeb?

Siv cov ntaub so ntswg los yog ib daim ntawv nyias ib txoj kev hloov xim LED teeb . Yog koj xav tau ntau yam xim coj teeb tab sis tag nrho koj muaj nyob hauv tsev dawb LEDs , koj hloov tau lawv rau ib qho xim koj xav ua raws li cov kauj ruam yooj yim no. Dawb LED teeb . Daim ntawv so ntswg los yog tej daim ntawv nyias.

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