MOSFET, lub npe hu ua Hlau-Oxide-Semiconductor Field-Effect Transistor, yog cov khoom siv hluav taws xob siv dav dav uas yog ib hom Field-Effect Transistor (FET).ib MOSFETMuaj cov rooj vag hlau, txheej txheej oxide insulating (feem ntau yog Silicon Dioxide SiO₂) thiab txheej semiconductor (feem ntau silicon Si). Lub hauv paus ntsiab lus ntawm kev ua haujlwm yog tswj lub rooj vag hluav taws xob hloov hluav taws xob ntawm qhov chaw los yog hauv cov khoom siv hluav taws xob, yog li tswj qhov tam sim no ntawm qhov chaw thiab ntws.
MOSFETstuaj yeem muab faib ua ob hom loj: N-channelMOSFETs(NMOS) and P-channelMOSFETs(PMOS). Hauv NMOS, thaum lub rooj vag voltage yog qhov zoo ntawm qhov chaw, n-type conducting channel yog tsim rau ntawm qhov chaw semiconductor, tso cai rau cov electrons ntws los ntawm qhov chaw mus rau qhov ntws. Hauv PMOS, thaum lub rooj vag hluav taws xob tsis zoo nrog rau qhov chaw, p-type conducting channel yog tsim rau ntawm qhov chaw semiconductor, tso cai rau qhov ntws los ntawm qhov chaw mus rau qhov ntws.
MOSFETsmuaj ntau yam zoo, xws li cov input impedance siab, tsis tshua muaj suab nrov, tsis tshua muaj zog noj, thiab yooj yim ntawm kev koom ua ke, yog li lawv tau dav siv nyob rau hauv analog circuits, digital circuits, hwj chim tswj, hluav taws xob electronics, kev sib txuas lus systems, thiab lwm yam. Nyob rau hauv integrated circuits,MOSFETsyog cov chav hauv paus uas ua rau CMOS (Complementary Metal Oxide Semiconductor) logic circuits. CMOS circuits muab cov txiaj ntsig zoo ntawm NMOS thiab PMOS, thiab yog tus cwj pwm los ntawm kev siv hluav taws xob tsawg, kev kub ceev thiab kev sib koom ua ke siab.
Ntxiv rau,MOSFETstuaj yeem muab faib ua hom kev txhim kho thiab depletion-hom raws li seb lawv cov kev coj ua tau tsim ua ntej. Hom kev txhim khoMOSFETNyob rau hauv lub rooj vag voltage yog xoom thaum lub channel tsis conductive, yuav tsum tau siv ib tug tej yam lub rooj vag voltage los tsim ib tug conductive channel; thaum depletion homMOSFETNyob rau hauv lub rooj vag voltage yog xoom thaum lub channel twb conductive, lub rooj vag voltage yog siv los tswj cov conductivity ntawm cov channel.
Hauv cov ntsiab lus,MOSFETyog lub teb cov nyhuv transistor raws li ib tug hlau oxide semiconductor qauv, uas tswj cov tam sim no ntawm qhov chaw thiab ntws los ntawm kev tswj lub rooj vag voltage, thiab muaj ib tug ntau yam ntawm cov kev siv thiab tseem ceeb technical tus nqi.
Post lub sij hawm: Sep-12-2024
