Video: Kuv tuaj yeem siv LED li diode?
2024 Tus sau: Lynn Donovan | [email protected]. Kawg hloov kho: 2023-12-15 23:47
Xyaum, LED tuaj yeem tsis yog siv raws li diodes . Kev ntsuas hluav taws xob rov qab (PIV ntsuas) ntawm LEDs tsawg dua 5-10 volts, uas tsis txaus rau feem ntau ntawm cov ntawv thov. 2. Rov qab xau tam sim no txawm tias qhov hluav taws xob rov qab qis dua (tsawg dua 5-10 volts) loj dhau rau LEDs.
Ntawm no, puas yog LED A diode?
Lub teeb-emitting diode ( LED ) yog ib lub teeb ci semiconductor uas emits lub teeb thaum tam sim no ntws los ntawm nws. Electrons nyob rau hauv lub semiconductor recombine nrog electron qhov, tso lub zog nyob rau hauv daim ntawv ntawm photons. Thawj qhov pom-teeb pom kev LEDs yog qhov siv qis thiab txwv rau liab.
Ib sab saum toj no, LED puas tuaj yeem siv los ua photodiode? Ntxiv nrog rau emitting lub teeb, ib LED tuaj yeem ua siv raws li photodiode teeb sensor / ntes. Raws li ib tug photodiode , ib LED yog rhiab heev rau wavelengths sib npaug los yog luv dua lub predominant wavelength nws emits. Ib ntsuab LED yuav rhiab rau lub teeb xiav thiab rau qee lub teeb ntsuab, tab sis tsis yog lub teeb daj lossis liab.
Hauv qhov no, qhov txawv ntawm lub diode thiab LED yog dab tsi?
Ntsiab Qhov txawv ntawm tus LED thiab Diode Cov diode yog ua los ntawm cov khoom siv semiconductor thiab cov electrons ntawm cov khoom no muab lawv lub zog hauv daim ntawv ntawm tshav kub. Raws li qhov LED yog tsim los ntawm gallium arsenide thiab gallium phosphide uas nws cov electrons emit lub teeb thaum hloov lub zog.
Yuav ua li cas koj xaim LED diode?
Txuas sab laug ntawm lub resistor mus rau qhov zoo davhlau ya nyob twg ntawm lub roj teeb. Txuas txoj cai lead ntawm tus resistor mus rau sab laug lead (lub anode) ntawm thawj LED . Tom ntej no, txuas txoj cai txhuas (cathode) ntawm thawj LED mus rau sab laug txhuas (lub anode) ntawm qhov thib ob LED.
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