Video: PN semiconductor yog dab tsi?
2024 Tus sau: Miles Stephen | [email protected]. Kawg hloov kho: 2023-12-15 23:36
A p-n junction diode yog ob lub davhlau ya nyob twg lossis ob-electrode semiconductor ntaus ntawv, uas tso cai rau cov hluav taws xob tam sim no nyob rau hauv ib qho kev taw qhia nkaus xwb thaum thaiv cov hluav taws xob tam sim no nyob rau hauv opposite lossis thim rov qab. P-N kev sib tshuam semiconductor diode kuj hu ua p-n kev sib tshuam semiconductor ntaus ntawv.
Ntawm no, pn junction sawv rau dab tsi?
Ib p-n kev sib tshuam yog ib thaj tsam lossis kev sib tshuam ntawm ob hom khoom siv semiconductor, p-hom thiab n-hom, hauv ib qho siv lead ua ntawm semiconductor. Qhov no tso cai rau hluav taws xob tam sim no dhau los ntawm lub kev sib tshuam tsuas yog nyob rau hauv ib qho kev taw qhia.
Tsis tas li ntawd, muaj pes tsawg hom pn junction muaj? Muaj ntau tshaj 50,000 hom ntawm diodes nrog qhov ntsuas hluav taws xob los ntawm tsawg dua 1 volt mus rau ntau dua 2, 000 volts thiab qhov ntsuas tam sim no los ntawm tsawg dua 1 milliampere mus rau ntau dua 5,000 amperes. A p-n sib kuj tuaj yeem tsim thiab ntes lub teeb thiab hloov kho qhov muag hluav taws xob rau hauv hluav taws xob hluav taws xob.
Yog li ntawd, pn junctions ua haujlwm li cas?
PN kev sib tshuam yog tsim nyob rau hauv ib qho siv lead ua los ntawm kev koom nrog ob hom N thiab P-hom semiconductors. Thaum lub kev sib tshuam diode yog biased nyob rau hauv lub rov qab kev taw qhia, feem ntau tus nqi thauj khoom yog attracted los ntawm cov terminals nyob deb ntawm lub PN kev sib tshuam , yog li zam qhov diffusion ntawm electrons thiab qhov ntawm lub kev sib tshuam.
Dab tsi yog qhov tseem ceeb ntawm pn junction?
Nws yog siv rau ntau hom kev kho rau qib tam sim no ob qho tib si loj thiab me, nrog rau qib siab thiab tsis tshua muaj hluav taws xob, thiab nws pom muaj ntau yam siv nyob rau hauv txhua yam ntawm hluav taws xob circuits. Cov PN kev sib tshuam muaj cov khoom muaj txiaj ntsig zoo uas cov khoom siv hluav taws xob tsuas muaj peev xwm ntws mus rau hauv ib qho kev taw qhia.
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