FETs kwaye isebenza njani

FETs ngabo izixhobo semiconductor, umgaqo yokusebenza nalapho isekelwe ukuxhathisa yentsimi ezinqamlezayo zombane awunandaba yesixhobo semiconductor.

Olona phawu olwahlula olu hlobo isixhobo ukuba transistors isiphumo endle kuba inzuzo ombane aphezulu kunye ukuxhathisa eliphezulu ukuya angenayo.

Kwezi zixhobo ekudalweni umsinga wombane ityala kuphela abathwali uhlobo olufanayo bayabandakanyeka (electron).

Kukho iindidi ezimbini FETs:

- ukuba isakhiwo TIR, ngamanye metal, kulandele Heating, ngoko ke semiconductor (MIS);

- Ukulawula nge PN-kuhlangana khona.

Ubume elula isiphumo endle transistor luquka ipleyiti eyenziwe ngezinto semiconductor ukuba omnye PN-inguqu kuphela embindini kunye ohmic abafowunelwa emancamini.

I electrode kwiphakati enjalo apho liqhuba abathwali intlawulo channel ibizwa ngokuba imvelaphi kunye electrode apho i electrode siphuma kwijelo - idreyini.

Maxa wambi kuyenzeka ukuba iqhosha sixhobo sinamandla ingasebenziyo. Ngoko ke, ebudeni nokulungiswa nasiphi na isixhobo se-elektroniki kuyimfuneko rhoqo ukukhangela le-FET.

Ukuze wenze oku, isixhobo vypayat, ngokuba akayi kuba nako ukujonga kwi sekethe ngekhompyutha. Kwaye ngoko, ngokulandela imiyalelo ethile, dlulela ekuphumeni.

Field isiphumo transistors kufuneka iindlela zokusebenza ezimbini - obuluqilima kunye isitshixo.

Umsebenzi Transistor - yenye apho transistor lowo uthi ezimbini - in a evulekileyo ngokupheleleyo okanye elivaliweyo ngokupheleleyo. Kodwa isimo eliphakathi, xa candelo ivuliwe ngokungaphelelanga engekho.

Kwimeko efanelekileyo, xa transistor yi "ukuvula", ngamanye the mode Ukwanda ekuthiwa, amanzi phakathi iiclamps "idreyini" yaye "umthombo" ku nothi.

Power ilahleko ngexesha ombane evulekileyo karhulumente kubonakala imveliso (ilingana zero) kwi-mali wangoku. Ngenxa yoko, amandla ukusasaza ngu zero.

Kwimo umda, ngamanye amazwi xa iibhloko transistor, umlo phakathi "/ umthombo indlela idreyini" deduces yayo athambekele yokungapheli. Power ukusasaza kwi imeko evaliweyo ke imveliso ombane lonke ixabiso ngokulinganayo zero. Ngako oko, ukulahlekelwa amandla = 0.

Kubonakala ukuba imo ephambili transistors ilahleko lwamandla zero.

Ukuziqhelisa, kwi transistor evulekileyo, ngokwendalo, ukumelana "idreyini / umthombo umendo" Kuya kubakho. Nge transistor lavalwa ukuba ezi izigqibo ixabiso asephantsi ke noko kwenzeka. Ngenxa yoko, ilahleko amandla kwindlela ezingashukumiyo kwi transistor ukuba kuncinane.

A eziguquguqukayo, xa transistor luvaliwe okanye kuvulwa, kuyenza ummandla wayo yomgama kwindawo yokusebenza apho ngoku ayahamba na transistor, ngokuqhelekileyo na isiqingatha idreyini yangoku. Kodwa ombane "iyatshona / umthombo" lidla ifikelela isiqingatha ixabiso elikhulu. Ngenxa yoko, indlela ulwabiwo olutshintshatshintshayo inika transistor enkulu ilahleko ngamandla, nto leyo kunciphisa i "hayi" indlela iimpawu eziphambili ezimangalisayo.

Kodwa, ke, ukuba sesichengeni elide le transistor kwimo linamandla mncinci kakhulu ubude sokuhlala kwimo static. Ngenxa yoko, ukusebenza liqonga transistor esebenza kokutshintshela kwindlela, iphezulu kakhulu kwaye inga asithoba ezintathu ukuya kumashumi asithoba anesibhozo ekhulwini.

ukusebenza Field transistors apho asebenza kwimo ngasentla, ziye ngokwaneleyo kakhulu asetyenziswa units ngamandla zokuguqula, ukubetha kwentliziyo imithombo amandla, izigaba we zidlulisele ezithile njalo njalo.