Ni utuhe turere tune twa MOSFET?

 

Uturere tune twa N-umuyoboro uzamura MOSFET

(1) Uturere dutandukanye two guhangana (nanone bita akarere katuzuye)

Us Agaciro ka UDs ni nto muri kano karere, kandi kurwanya imiyoboro bigenzurwa ahanini na UGs. Iyo uGs ari sure, ip na uDs muburyo bumwe, akarere kagereranijwe nkurutonde rwimirongo igororotse. Muri iki gihe, umurima wingaruka D, S hagati yingana na voltage UGS

Igenzurwa na voltage UGS ihinduka irwanya.

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Us Guhindura hamwe na UDs, nibihoraho-bigezweho. iyobowe gusa na UGs, hanyuma MOSFETD, S ihwanye na voltage uGs igenzura isoko iriho. MOSFET ikoreshwa mumashanyarazi ya amplification, mubisanzwe kumurimo wa MOSFET D, S ihwanye na voltage uGs igenzura inkomoko. MOSFET ikoreshwa mumuzunguruko wa amplification, mubisanzwe ikorera mukarere, izwi kandi nk'akarere ka amplification.

(3) Agace kaciwe (nanone bita agace kaciwe)

Agace ka Clip-off (kazwi kandi nk'ahantu haciwe) kugira ngo uhure na ucs "Ues (th) ku gishushanyo cyegereye umurongo utambitse w'akarere, umuyoboro wose urafunzwe, uzwi nka clip yuzuye, io = 0 , umuyoboro ntukora.

(4) ahantu hasenyuka

Agace gasenyuka gaherereye mukarere kuruhande rwiburyo bwishusho. Hamwe na UD yiyongera, ihuriro rya PN rikorerwa cyane na voltage ihindagurika cyane, ip yiyongera cyane. Umuyoboro ugomba gukoreshwa kugirango wirinde gukorera mukarere kasenyutse. Iyimurwa riranga umurongo rishobora gukomoka kubisohoka biranga umurongo. Kuburyo bwakoreshejwe nkigishushanyo cyo gushakisha. Kurugero, mu gishushanyo cya 3 (a) kuri Ubs = 6V umurongo uhagaritse, ihuriro ryayo nu murongo utandukanye uhuye na i, Us indangagaciro muri ib- Uss ihuza umurongo, ni ukuvuga kubona ihererekanyabubasha riranga umurongo.

Ibipimo byaBYINSHI

Hano haribintu byinshi bya MOSFET, harimo ibipimo bya DC, ibipimo bya AC nibipimo ntarengwa, ariko gusa ibipimo byingenzi bikurikira bigomba kwitabwaho mugukoresha bisanzwe: kwiyuzuza amazi-isoko ya IDSS ya pinch-off voltage Up, (imiyoboro ihuza imiyoboro hamwe no kugabanuka -ubwoko bwimyanya-irembo, cyangwa gufungura voltage UT (insimburangingo ikinguye-irembo), trans-conductance gm, kumeneka-inkomoko yameneka ya voltage BUDS, imbaraga nyinshi zashizwemo PDSM, hamwe na IDSM ntarengwa.

(1) Umuyoboro wuzuye wuzuye

Umuyoboro wuzuye wuzuye IDSS numuyoboro wamazi uhuza cyangwa ubwoko bwa depletion bwinjizwamo irembo MOSFET mugihe amarembo ya voltage UGS = 0.

(2) Clip-off voltage

Umuvuduko wa pinch-off UP ni irembo ryamarembo muburyo bwihuza cyangwa ubwoko bwa depletion-bwikingira-irembo MOSFET igabanya gusa imiyoboro nisoko. Nkuko bigaragara muri 4-25 kuri N-umuyoboro UGS indangamuntu, birashobora kumvikana kugirango ubone akamaro ka IDSS na UP

BYINSHI mu turere tune

(3) Kuzimya voltage

Kuzimya voltage UT ni irembo ryamarembo mumashanyarazi ashimangiwe-irembo MOSFET ituma imiyoboro ihuza imiyoboro ikora neza.

(4) Kurengana

Transconductance gm nubushobozi bwo kugenzura amarembo yinkomoko ya voltage UGS kumuranga wamazi, ni ukuvuga, igipimo cyimpinduka mumyirondoro yimiyoboro ihindagurika nimpinduka mumasoko ya voltage UGS. 9m ni ikintu cyingenzi gipima ubushobozi bwo kongera imbaraga zaBYINSHI.

(5) Kuramo inkomoko yamashanyarazi

Imiyoboro yameneka yamashanyarazi BUDS bivuga amarembo yinkomoko yumuriro UGS runaka, imikorere isanzwe ya MOSFET irashobora kwemerera ingufu za voltage zidasanzwe. Nibipimo ntarengwa, byongewe kuri MOSFET ikora voltage igomba kuba munsi ya BUDS.

(6) Gukwirakwiza imbaraga ntarengwa

Umubare ntarengwa wo gukwirakwiza PDSM nayo ni imipaka ntarengwa, yerekeza kuriBYINSHIimikorere ntabwo yangirika mugihe ntarengwa cyemewe gisohoka inkomoko yamashanyarazi. Mugihe ukoresheje MOSFET yingufu zikoreshwa zigomba kuba munsi ya PDSM hanyuma ugasiga intera runaka.

(7) Umuyoboro ntarengwa

Ikirangantego ntarengwa IDSM ni ikindi kintu kigarukira, bivuga imikorere isanzwe ya MOSFET, isoko yamenetse yumuriro ntarengwa wemerewe kunyura mumikorere ya MOSFET ntigomba kurenza IDSM.

Ihame rya MOSFET

Ihame ryimikorere rya MOSFET (N-umuyoboro wa N-umuyoboro wa MOSFET) ni ugukoresha VGS kugirango ugenzure umubare w "amafaranga yishyurwa", kugirango uhindure imiterere yumuyoboro wogutwara wakozwe n "" kwishyuza inductive ", hanyuma ugere ku ntego yo kugenzura imiyoboro y'amazi. Ikigamijwe ni ukugenzura imiyoboro y'amazi. Mu gukora imiyoboro, binyuze muburyo bwo gukora umubare munini wa ion nziza murwego rwimikorere, bityo kurundi ruhande rwimbere rushobora guterwa amafaranga menshi, ayo mafaranga mabi arashobora guterwa.

Iyo voltage yumuryango ihindutse, ubwinshi bwamafaranga yatanzwe mumuyoboro nabwo burahinduka, ubugari bwumuyoboro uyobora nabwo burahinduka, bityo indangamuntu yumuyoboro ihinduka hamwe na voltage yumuryango.

Uruhare runini

I. BYINSHI birashobora gukoreshwa kuri amplification. Kubera kwinjiza kwinshi kwinshi kwa MOSFET amplifier, ubushobozi bwo guhuza bushobora kuba ubushobozi buke, udakoresheje ubushobozi bwa electrolytike.

Icya kabiri, kwinjiza kwinshi kwa MOSFET birakwiriye cyane guhindura impedance. Bikunze gukoreshwa mubyiciro byinshi byongera ibyiciro byinjira kugirango impedance ihindurwe.

MOSFET irashobora gukoreshwa nkumwanya uhinduka.

Icya kane, MOSFET irashobora gukoreshwa byoroshye nkisoko ihoraho.

Icya gatanu, MOSFET irashobora gukoreshwa nka elegitoronike.