Ukuqonda umsebenzi kunye nolwakhiwo lwe-MOSFETs

Ukuba i-transistor inokubizwa ngokuba yeyona nto iyilwe kakhulu kwinkulungwane yama-20, akuthandabuzeki ukubaI-MOSFET apho ubuninzi betyala. Ngo-1925, kwimigaqo esisiseko yamalungelo awodwa omenzi wechiza e-MOSFET eyapapashwa ngo-1959, i-Bell Labs yaqulunqa umgaqo we-MOSFET ngokusekelwe kuyilo lwesakhiwo. Ukuza kuthi ga namhlanje, abaguquli bamandla amakhulu, amancinci kwimemori, i-CPU kunye nezinye izixhobo ze-elektroniki ezingundoqo, akukho nanye engayisebenzisi kwi-MOSFET. ngoko ngokulandelayo siyawuqonda umsebenzi wolwakhiwo lweMOSFET it! Igama elipheleleyo le-MOSFET yi-Metal-Oxide-Semiconductor Field-Effect Transistor.

1. Imisebenzi esisiseko yee-MOSFETs

Igama elingundoqo elisisiseko malunga ne-MOSFET kukuba - i-semiconductor, kunye ne-semiconductor luhlobo lwemathiriyeli yentsimbi, inokuqhuba umbane, kodwa ngokwenene, iyakwazi ukugqunywa.MOSFET njengoluhlobo lwesixhobo se-semiconductor, siyayidinga ukuba siqonde umsebenzi wezinto ezilula. ikakhulu ukukwazi ukuqinisekisa ukuba ukujikeleza kwesekethe, kwaye kwakhona ukwazi ukuqonda isekethe yokuthintela.

2. Ubume obusisiseko bee-MOSFETs

I-MOSFET sisixhobo samandla esisebenza ngeendlela ezininzi ngenxa yamandla aso asezantsi okuqhuba isango, isantya esibalaseleyo sokutshintsha kunye nokusebenza okuhambelanayo. Uninzi lwamandla e-MOSFETs anolwakhiwo oluthe nkqo olude, kunye nomthombo kunye ne-drain kwiinqwelomoya ezichaseneyo ze-wafer, evumela imisinga emikhulu ukuba ihambe kwaye kusetyenziswe i-voltages ephezulu.

3. Ii-MOSFET zisetyenziswa ikakhulu njengezixhobo zombane eziqhelekileyo kwiindawo ezimbini

(1), iimfuno ze-frequency yokusebenza phakathi kwe-10kHz kunye ne-70kHz, ngelixa amandla okuphuma abe ngaphantsi kwe-5kw kwintsimi, kuninzi lwamatyala kule ntsimi, nangona i-IGBT kunye namandlaIi-MOSFETs banokufikelela umsebenzi ohambelanayo, kodwa amandla e-MOSFETs athande ukuthembela kwilahleko esezantsi yokutshintsha, ubungakanani obuncinci kunye neendleko eziphantsi ngokwentelekiso ukuze zibe lolona khetho lufanelekileyo, izicelo ezimele iibhodi ze-LCD TV, ii-cookers ze-induction njalo njalo.

(2), iimfuno zefrikhwensi yokusebenza iphezulu kuneyona ndawo iphezulu inokufezekiswa ngezinye izixhobo zamandla, ubuninzi bamafrikhwensi akhoyo ngoku ikakhulu kwi-70kHz okanye kunjalo, kule ndawo amandlaI-MOSFET iye yaba yodwa ukhetho, izicelo ezimele i-inverters, izixhobo zomsindo, njalo njalo.