FETs nokuthi asebenza kanjani

FETs yilezo amadivayisi Semiconductor, isimiso wokusebenza zazo kusekelwe ukumelana we transverse ensimini kagesi ukushintshashintsha kwezwi of indaba Semiconductor.

I lolwehlukanisa lolu hlobo idivayisi ukuthi transistors ensimini umphumela ube high voltage inzuzo kanye ukumelana engenayo.

Kulezi amadivayisi ukudalwa i kagesi kuphela ukushaja abathwali yohlobo olufanayo behileleka (electron).

Zimbili izinhlobo FETs:

- kokuba isakhiwo Tir, isb metal, kulandelwa Kwe-dielectric Heating, ke Semiconductor (MIS);

- Ukuphatha nge PN-okuhlangana kuyo.

Isakhiwo elula ensimini umphumela Transistor kuhlanganisa ipuleti wenza elinama Semiconductor kokuba omunye PN-ushintsho kuphela maphakathi kanye ohmic oxhumana nabo emaphethelweni.

I electrode e thuluzi ngalo uqhuba isiteshi icala abathwali abizwa ngokuthi umthombo kanye electrode ku ngalo electrode ziyaphuma isiteshi - abakhwabanisi.

Ngezinye izikhathi kuyenzeka ukuthi idivaysi ukhiye yamandla enjalo awahlelanga. Ngakho-ke, ngesikhathi ukukhanda noma iyiphi zikagesi Ngokuvamile kuye kudingeke uhlole FET.

Ukuze wenze lokhu, kudivayisi vypayat, ngoba ngeke bakwazi ukuhlola ku circuit electronic. Bese, elandela iziyalezo eziqondile, uqhubekele checkout.

Field umphumela transistors babe izindlela ezimbili yokusebenza - ashukumisayo nokhiye.

Transistor operation - ingenye lapho Transistor ungaphakathi ezimbili uthi - endaweni evulekile ngokugcwele noma avaliwe ngokugcwele. Kodwa ngalesi simo Lesisemkhatsini, lapho ingxenye ivuliwe kancane engekho.

Endabeni ekahle, lapho Transistor kuyinto "ukuvula", okungukuthi yiyona okuthiwa ukugcwaliswa mode, impedance phakathi ezikhumulweni "abakhwabanisi" futhi "umthombo" zero.

Amandla ukulahlekelwa ngesikhathi evulekile isimo voltage livela umkhiqizo (ilingane no-zero) e nenani lamanje. Ngenxa yalokho, amandla ukushabalalisa zero.

In the mode cutoff, isb lapho amabhlogo Transistor, ukumelana phakathi "abakhwabanisi / umthombo endleleni" deduces yayo ivame infinity. Amandla ukushabalalisa esimweni avaliwe iwumkhiqizo voltage yonkana Inani lamanje ilingane no-zero. Ngakho, amandla ukulahlekelwa = 0.

It kuvela ukuthi imodi ayisihluthulelo transistors amandla ukulahlekelwa zero.

Ekusebenteni, ku Transistor evulekile, ngokwemvelo, bangafuni "abakhwabanisi / umthombo endleleni" abayoba khona mathupha. Nge Transistor avaliwe kulezi ziphetho inani eliphansi zamanje namanje kwenzeka. Ngenxa yalokho, amandla ukulahlekelwa imodi static ku Transistor incane.

A ngamandla, lapho Transistor ivaliwe noma ivuliwe, kuqinisa indawo yayo eqondile iphuzu yokusebenza lapho wamanje egeleza ngokusebenzisa Transistor, evamile iyi kwesigamu wamanje abakhwabanisi. Kodwa voltage "echibini / umthombo" ngokuvamile ifinyelela isigamu seqiwe. Ngenxa yalokho, ukwabiwa imodi ashukumisayo inikeza Transistor omkhulu amandla ukulahlekelwa, esehlisa "cha" ukhiye imodi izakhiwo emangalisayo.

Kodwa, esikhundleni salokho, ephuza we Transistor ikumodi ashukumisayo lincane kakhulu ubude ukuhlala ikumodi static. Ngenxa yalokho, nekusebenta isigaba Transistor nesebenzela e ukushintsha mode, kuphezulu kakhulu futhi kungaba ayisishiyagalolunye ezintathu ayisishiyagalolunye nesishiyagalombili amaphesenti.

Field umphumela transistors letisebenta ikumodi ngenhla, ngokwanele kabanzi amandla ukuguqulela amayunithi, ishayela ugesi, izigaba okukhiphayo omoya ezithile nokunye.