Ni irihe hame ryo gukora rya MOSFET?

MOSFET (FieldEffect Transistor abbreviation (FET)) umutweBYINSHI. numubare muto wabatwara kugirango bitabira ubushyuhe bwumuriro, bizwi kandi nka tristoriste ihuza byinshi. Yashyizwe mubikorwa nkigikoresho cya voltage igenzurwa nigice cya super-superctor. Ibisohoka biriho ni byinshi (10 ^ 8 ~ 10 ^ 9 Ω), urusaku ruke, gukoresha ingufu nke, urwego ruhagaze, byoroshye guhuza, nta kintu cya kabiri gisenyuka, umurimo wubwishingizi bwinyanja nini nibindi byiza, ubu byahinduye u bipolar ihuza transistor hamwe nimbaraga za tristoriste ya bafatanyabikorwa bakomeye.

Ibiranga BYINSHI

Icya mbere: MOSFET nigikoresho cyo gukoresha voltage, kinyura kuri VGS (isoko yumuriro wa voltage) kugirango umenye ID (drain DC);

Icya kabiri:MOSFET'sibisohoka DC ni nto cyane, bityo ibyasohotse birwanya ni binini cyane.

Icya gatatu: ikoreshwa mubitwara bike kugirango ikore ubushyuhe, bityo ikagira igipimo cyiza cyumutekano;

Icya kane: igizwe n'inzira yagabanijwe yo kugabanya amashanyarazi ya coefficient ntoya kuba ntoya kuruta transistor igizwe n'inzira yagabanijwe yo kugabanya amashanyarazi ya coefficient nto;

Icya gatanu: MOSFET imbaraga zo kurwanya imirasire;

Icya gatandatu: kubera ko nta gikorwa kibi cyo gutatanya kwa rubanda giterwa nuduce twinshi tw urusaku, kuko urusaku ruri hasi.

Ihame ryibikorwa byinshi

BYINSHIihame ryibikorwa mu nteruro imwe, ni ukuvuga, "drain - isoko igenda inyura kumuyoboro uri hagati yindangamuntu, hamwe na electrode numuyoboro uri hagati ya pn yubatswe muburyo bubogamye bwa electrode voltage kugirango umenye ID". Mubyukuri, amplitione yindangamuntu kumuzunguruko, ni ukuvuga umuyoboro uhuza ibice, ni hamwe na pn ihuza guhuza kubogama, kubaho kwa depletion layer kugirango kwagura itandukaniro ryubuhanga bwimpamvu. Mu nyanja ituzuye ya VGS = 0, kwaguka kwinzibacyuho yerekanwe ntabwo ari nini cyane kuko, ukurikije umurima wa magneti wa VDS wongeyeho hagati y’isoko y’amazi, electron zimwe na zimwe zo mu nyanja zituruka zikururwa n’umuyoboro. , ni ukuvuga, hari ibikorwa bya ID ID kuva kumurongo kugeza isoko. Igice giciriritse cyaguka kuva kumarembo kugera kumazi kizakora ubwoko bwo guhagarika umubiri wose wumuyoboro, indangamuntu yuzuye. Reba kuri ubu buryo nka pinch-off. Ibi bishushanya ko inzibacyuho ibuza umuyoboro wose, kandi ntabwo aruko DC yaciwe.

Murwego rwinzibacyuho, kubera ko nta kwiyobora kwa electroni nu mwobo, muburyo nyabwo bwibintu biranga insulasiyo yo kubaho kwa DC rusange biragoye kwimuka. Nyamara, umurima wa rukuruzi hagati yumuyoboro - isoko, mubikorwa, mubikorwa byombi byinzibacyuho ihuza imiyoboro hamwe n irembo ryibiti byo hepfo ibumoso, kubera ko umurima wa rukuruzi ukurura electroni yihuta cyane unyuze murwego rwinzibacyuho. Kuberako imbaraga za drift magnetique yumurima gusa ntabwo ihindura ubwuzuzanye bwindangamuntu. Icya kabiri, VGS kumwanya mubi uhinduka, kuburyo VGS = VGS (kuzimya), hanyuma urwego rwinzibacyuho ruhindura ahanini imiterere yo gutwikira inyanja yose. Kandi magnetiki yumurima wa VDS ahanini yongewe kumurongo winzibacyuho, umurima wa magneti ukurura electron kumwanya wa drift, mugihe cyose wegereye inkomoko yinkingi ya bugufi cyane byose, bikaba byinshi kugirango imbaraga za DC zitaba gushobora guhagarara.