Koj Puas Paub Txog MOSFET Circuits?

MOSFET circuits feem ntau siv hauv hluav taws xob, thiab MOSFET sawv cev rau Hlau-Oxide-Semiconductor Field-Effect Transistor. Kev tsim thiab kev siv ntawm MOSFET circuits npog ntau qhov chaw. Hauv qab no yog cov ncauj lus kom ntxaws ntawm MOSFET circuits:

I. Cov Qauv Txheej Txheem thiab Txoj Cai Ua Haujlwm ntawm MOSFETs

1. Cov qauv tsim

MOSFETs feem ntau muaj peb lub electrodes: rooj vag (G), qhov chaw (S), thiab ntws (D), nrog rau cov hlau oxide rwb thaiv tsev txheej. Raws li hom conductive channel, MOSFETs tau muab faib ua N-channel thiab P-channel hom. Raws li kev tswj cov nyhuv ntawm lub rooj vag voltage ntawm cov channel conductive, lawv kuj tuaj yeem muab faib ua hom kev txhim kho thiab depletion hom MOSFETs.

2. Txoj Cai Ua Haujlwm

Lub hauv paus ntsiab lus ntawm kev ua haujlwm ntawm MOSFET yog ua raws li cov khoom siv hluav taws xob los tswj cov khoom siv hluav taws xob semiconductor. Thaum lub rooj vag hluav taws xob hloov pauv, nws hloov pauv cov nqi xa tawm ntawm cov khoom siv hluav taws xob hauv qab lub rooj vag, uas tswj qhov dav ntawm cov kab hluav taws xob ntawm qhov chaw thiab ntws, yog li tswj cov dej ntws tam sim no. Tshwj xeeb tshaj yog, thaum lub rooj vag voltage tshaj ib qho chaw pib, ib qho kev sib txuas ntawm cov ntaub ntawv ntawm cov khoom siv semiconductor, tso cai rau kev sib txuas ntawm qhov chaw thiab ntws. Hloov pauv, yog tias cov channel ploj mus, qhov chaw thiab qhov ntws tawm raug txiav tawm.

II. Kev siv ntawm MOSFET Circuits

1. Amplifier Circuits

MOSFETs tuaj yeem siv ua amplifiers los ntawm kev kho lub rooj vag voltage los tswj qhov nce tam sim no. Lawv yog siv nyob rau hauv lub suab, xov tooj cua zaus, thiab lwm yam amplifier circuits muab suab nrov, tsawg zog noj, thiab high-tau amplification.

2. Hloov Circuit Court

MOSFETs tau dav siv los ua cov keyboards hauv digital circuits, tswj fais fab, thiab tsav tsheb. Los ntawm kev tswj lub rooj vag hluav taws xob, ib tus tuaj yeem yooj yim hloov lub voj voog rau lossis tawm. Raws li kev hloov cov ntsiab lus, MOSFETs muaj qhov zoo xws li kev hloov pauv ceev, kev siv hluav taws xob tsawg, thiab kev tsav tsheb yooj yim.

3. Analog Switch Circuits

Hauv analog circuits, MOSFETs tuaj yeem ua haujlwm zoo li cov keyboards analog. Los ntawm kev kho lub rooj vag voltage, lawv tuaj yeem tswj lub xeev ntawm / tawm, tso cai rau hloov thiab xaiv cov cim analog. Hom kev thov no muaj ntau hauv kev ua cov teeb liab thiab kev tau txais cov ntaub ntawv.

4. Logic Circuits

MOSFETs kuj tau siv dav hauv digital logic circuits, xws li logic rooj vag (AND, LOSSIS lub rooj vag, thiab lwm yam) thiab lub cim xeeb. Los ntawm kev sib txuas ntau yam MOSFETs, complex logic circuit systems tuaj yeem tsim tau.

5. Fais fab tswj Circuits

Hauv kev tswj xyuas hluav taws xob, MOSFETs tuaj yeem siv rau kev hloov hluav taws xob, xaiv lub zog, thiab kev tswj fais fab. Los ntawm kev tswj hwm lub xeev ntawm / tawm ntawm MOSFET, kev tswj hwm zoo thiab kev tswj xyuas lub zog tuaj yeem ua tiav.

6. DC-DC Converters

MOSFETs yog siv nyob rau hauv DC-DC converters rau lub zog hloov dua siab tshiab thiab voltage tswj. Los ntawm kev kho qhov tsis xws li lub voj voog lub luag haujlwm thiab hloov zaus, kev hloov pauv hluav taws xob muaj txiaj ntsig zoo thiab cov zis ruaj khov tuaj yeem ua tiav.

III. Qhov tseem ceeb tsim kev txiav txim siab rau MOSFET Circuits

1. Rooj vag Voltage Control

Lub rooj vag voltage yog ib qho tseem ceeb parameter rau kev tswj cov conductivity ntawm MOSFET. Thaum tsim cov circuits, nws yog ib qho tseem ceeb los xyuas kom meej qhov ruaj khov thiab qhov tseeb ntawm lub qhov rooj qhov hluav taws xob kom tsis txhob muaj kev ua haujlwm tsis zoo los yog tsis ua haujlwm vim qhov hloov pauv ntawm qhov hluav taws xob.

2. Kev txwv tam sim no

MOSFETs tsim muaj qee qhov dej ntws tawm thaum lub sijhawm ua haujlwm. Txhawm rau tiv thaiv MOSFET thiab txhim kho kev siv hluav taws xob hauv hluav taws xob, nws yog ib qho tseem ceeb uas yuav tsum tau txwv cov dej ntws los ntawm kev tsim lub voj voog kom tsim nyog. Qhov no tuaj yeem ua tiav los ntawm kev xaiv tus qauv MOSFET txoj cai, teeb tsa lub rooj vag hluav taws xob kom zoo, thiab siv cov khoom tsim nyog.

3. Kev ruaj ntseg kub

MOSFET kev ua tau zoo cuam tshuam los ntawm qhov kub thiab txias. Cov qauv tsim hluav taws xob yuav tsum suav nrog qhov cuam tshuam ntawm qhov kub thiab txias ntawm MOSFET kev ua tau zoo, thiab kev ntsuas yuav tsum tau coj los txhim kho qhov kub thiab txias, xws li xaiv cov qauv MOSFET nrog rau qhov kub thiab txias thiab siv txoj kev txias.

4. Kev sib cais thiab kev tiv thaiv

Hauv cov kab hluav taws xob nyuaj, kev ntsuas kev sib cais yog xav tau los tiv thaiv kev cuam tshuam ntawm qhov sib txawv. Txhawm rau tiv thaiv MOSFET los ntawm kev puas tsuaj, kev tiv thaiv circuits xws li overcurrent thiab overvoltage tiv thaiv yuav tsum tau siv.

Hauv kev xaus, MOSFET circuits yog ib feem tseem ceeb ntawm kev siv hluav taws xob hluav taws xob. Tsim kom raug thiab siv MOSFET circuits tuaj yeem ua tiav ntau yam haujlwm hauv Circuit Court thiab ua tau raws li cov kev cai sib txawv.