Bheka ama-MOSFET

Ama-MOSFET afaka ama-MOSFET kumasekethe ahlanganisiwe.Ama-MOSFET, njengenye yezinsiza eziyisisekeloi-semiconductor field, zisetshenziswa kakhulu kumasekethe asezingeni lebhodi kanye nasekwakhiweni kwe-IC.I-drain kanye nomthombo weAma-MOSFET zingashintshwa, futhi zakhiwe ku-backgate yohlobo lwe-P enesifunda sohlobo lwe-N. Ngokuvamile, imithombo emibili iyashintshana, yomibili yakha isifunda sohlobo lwe-N endaweniI-backgate yohlobo lwe-P. Ngokuvamile, lezi zindawo ezimbili ziyafana, futhi noma lezi zigaba ezimbili zishintshiwe, ukusebenza kwedivayisi ngeke kuthinteke. Ngakho-ke, idivayisi ibhekwa njenge-symmetric.

Isimiso:

I-MOSFET isebenzisa i-VGS ukuze ilawule inani "lemali ekhokhwayo" ukuze iguqule isimo seshaneli yokuhambisa eyakhiwe yilawa "mali ekhokhwayo" ukuze kulawulwe umthamo wamanje. Lapho ama-MOSFET ekhiqizwa, inani elikhulu lama-ion alungile avela kungqimba lokuvikela ngezinqubo ezikhethekile, ukuze amacala amaningi amabi azwakale ngakolunye uhlangothi lwesixhumi esibonakalayo, futhi isifunda se-N sokungcola okuphezulu kokungena sixhunywe lawa macala amabi, futhi kwakhiwa isiteshi se-conductive, futhi umthamo wamanje omkhulu kakhulu, i-ID, ukhiqizwa ngisho noma i-VGS ingu-0. Uma i-voltage yesango ishintshiwe, inani lokushaja okubangelwa esiteshini nalo liyashintsha, futhi ububanzi. ye-conductive channel ishintsha ngezinga elifanayo. Uma i-voltage yesango ishintsha, inani lokushaja okukhangisiwe esiteshini nalo lizoshintsha, futhi ububanzi esiteshini esiqhutshwayo nabo buzoshintsha, ngakho-ke i-ID yamanje yokukhipha izoshintsha kanye ne-voltage yesango.

Indima:

1. Ingasetshenziswa kumjikelezo we-amplifier. Ngenxa ye-impedance ephezulu yokufaka ye-MOSFET amplifier, amandla okuhlangana angaba mancane futhi ama-electrolytic capacitor awakwazi ukusetshenziswa.

I-impedance ephezulu yokufaka ifanele ukuguqulwa kwe-impedance. Kuvame ukusetshenziselwa ukuguqulwa kwe-impedance esigabeni sokufaka sama-amplifiers esiteji esiningi.

3, Ingasetshenziswa njenge-resistor eguquguqukayo.

4, ingasetshenziswa njenge-switch electronic.

Ama-MOSFET manje asetshenziswa ezinhlobonhlobo zezinhlelo zokusebenza, kufaka phakathi amakhanda avela kakhulu kumathelevishini kanye nokushintshwa kwamandla kagesi. Namuhla, ama-bipolar common transistors kanye ne-MOS ahlanganiswa ndawonye ukuze akhe i-IGBT (insulated gate bipolar transistor), esetshenziswa kakhulu ezindaweni ezinamandla amakhulu, futhi amasekethe ahlanganisiwe e-MOS anesici sokusebenzisa amandla amancane, futhi manje ama-CPU asesetshenziswe kabanzi Izifunda ze-MOS.