Ukuqonda umsebenzi kanye nokwakheka kwama-MOSFETs

Uma i-transistor ingabizwa ngokuthi isungulwe enkulu kunazo zonke zekhulu lama-20, ngakho-ke akungabazeki ukuthiI-MOSFET lapho isikweletu esikhulu. 1925, ngezimiso eziyisisekelo zamalungelo obunikazi e-MOSFET ashicilelwe ngo-1959, iBell Labs yasungula isimiso se-MOSFET esisekelwe ekwakhiweni kwesakhiwo. Kuze kube namuhla, iziguquli ezinkulu eziya kumandla, ezincane kwinkumbulo, i-CPU nezinye izingxenye eziyinhloko zemishini kagesi, akukho neyodwa yazo engazisebenzisi ku-MOSFET. ngakho-ke ngokulandelayo siyaqonda umsebenzi wesakhiwo se-MOSFET it! Igama eligcwele le-MOSFET yi-Metal-Oxide-Semiconductor Field-Effect Transistor.

1. Imisebenzi eyisisekelo yama-MOSFET

Igama elingukhiye eliyisisekelo mayelana ne-MOSFET lithi - i-semiconductor, futhi i-semiconductor iwuhlobo lwempahla yensimbi, ingakwazi ukuqhuba ugesi, kodwa empeleni, ingabuye ibe yi-insulated.MOSFET njengohlobo lwedivayisi ye-semiconductor, siyidinga ukuze siqaphele umsebenzi wezinto ezilula. ngokuyinhloko ukukwazi ukuqinisekisa ukuthi ukujikeleza kwesifunda, futhi ukwazi ukubona ukujikeleza kokuvinjwa.

2. Isakhiwo esiyisisekelo sama-MOSFET

I-MOSFET iyisisetshenziswa samandla esisebenziseka ngezindlela eziningi ngenxa yamandla ayo okushayela kwesango aphansi, isivinini sokushintsha esihle kakhulu nokusebenza okuhambisanayo okuqinile. Ama-MOSFET amaningi anamandla anesakhiwo esime mpo se-longitudinal, esinomthombo futhi sidonsa ezindizeni eziphambene ze-wafer, okuvumela amaza amakhulu ukuthi ageleze kanye nama-voltage aphezulu azosetshenziswa.

3. Ama-MOSFET asetshenziswa kakhulu njengamadivayisi kagesi ajwayelekile emikhakheni emibili

(1), izidingo zefrikhwensi yokusebenza phakathi kuka-10kHz no-70kHz, kuyilapho amandla okukhiphayo abe ngaphansi kuka-5kw ensimini, ezimweni eziningi kulo mkhakha, nakuba i-IGBT namandlaAma-MOSFET angakwazi ukufeza umsebenzi ohambisanayo, kodwa amandla ama-MOSFET athambekele ekuthembeleni ekulahlekeni okuphansi kokushintsha, usayizi omncane kanye nezindleko eziphansi ukuze abe ukukhetha okufanele, izicelo ezimele amabhodi e-LCD TV, izipheki zokungeniswa njalo njalo.

(2), izidingo zefrikhwensi yokusebenza ziphakeme kunemvamisa ephezulu kakhulu engazuzwa ngamanye amadivaysi kagesi, imvamisa ephezulu yamanje ikakhulukazi iku-70kHz noma ngaphezulu, kule ndawo amandlaI-MOSFET sekuyiyona kuphela inketho, izicelo ezimele ama-inverter, imishini yomsindo, njalonjalo.