Inkcazo eneenkcukacha yomgaqo wokusebenza wamandla aphezulu we-MOSFET

Ii-MOSFET ezinamandla aphezulu (i-metal-oxide-semiconductor field-effect transistors) zidlala indima ebalulekileyo kubunjineli be-elektroniki bale mihla. Esi sixhobo siye saba yinto eyimfuneko kumbane we-elektroniki kunye nosetyenziso lwamandla aphezulu ngenxa yokusebenza kwayo okugqwesileyo kunye nezicelo ezahlukeneyo. Eli nqaku liza kuphonononga imigaqo yokusebenza yee-MOSFET ezinamandla aphezulu ukunika iinjineli kunye nabathanda izinto zombane ukuqonda okubanzi nokunzulu.

Yintoni i-MOSFET yamandla aphezulu?

I-MOSFET yamandla aphezulu sisitshixo se-semiconductor esikwaziyo ukuphatha i-voltage ephezulu yangoku kunye nephezulu. Iqulathe iinxalenye ezintathu eziphambili: Umthombo, iDrain kunye neSango. Isango lilodwa kumthombo kwaye likhuphe ngoluhlu oluncinci lwe-oxide, oluyinxalenye ye "oxide" yesakhiwo seMOS.

Amandla aphezulu kangakanani asebenza i-MOSFET

Umgaqo osebenzayo we-MOSFET wamandla aphezulu usekwe kulawulo lwendawo yombane. Xa i-voltage yangaphambili isetyenziswe phakathi kwesango kunye nomthombo, i-channel conductive yenziwe kwizinto eziphathekayo ze-semiconductor phantsi kwesango, ukudibanisa umthombo kunye nokucima, ukuvumela ukuba kubekho ukuhamba ngoku. Ngokulungelelanisa i-voltage yesango, sinokulawula ukuqhutyelwa kwesiteshi sokuqhuba, ngaloo ndlela sifezekise ulawulo oluchanekileyo lwangoku.

Le ndlela yokulawula intsimi yombane inika i-MOSFET iingenelo ezininzi, kubandakanywa ukuxhathisa okuphantsi, amandla okutshintsha ngesantya esiphezulu kunye nokuphazamiseka kwegalelo eliphezulu. Ezi mpawu zenza ii-MOSFETs zamandla aphezulu zilungele ngakumbi izicelo ezifuna ukusebenza kakuhle kunye nokuphendula ngokukhawuleza.

Izinto ezilungileyo zamandla aphezulu eMOSFETs

Ukusebenza okuphezulu: Ngenxa yokuxhathisa okuphantsi, ii-MOSFETs zamandla aphezulu zisebenzisa amandla amancinane kakhulu kurhulumente, ngaloo ndlela ziphucula ukusebenza kakuhle.

Ukutshintsha ngokukhawuleza: I-MOSFET enamandla amakhulu inokutshintsha ukusuka kwithuba elifutshane kakhulu lexesha, nto leyo ibaluleke kakhulu kukuguqulwa kwamaza kunye nolawulo lwe-pulse-width modulation (PWM).

Ukusebenza kwe-high-frequency: Bayakwazi ukusebenza kwii-frequencies eziphezulu, okwenza abaguquli bamandla bancinci kwaye basebenze ngakumbi.

Iindawo zesicelo

Ii-MOSFET ezinamandla amakhulu zisetyenziswa ngokubanzi kwizixhobo zombane ezinamandla amakhulu, njengezithuthi zombane, iinkqubo zamandla ahlaziyekayo, umbane otshintshayo, kunye nezixhobo ezizisebenzelayo kwimizi-mveliso.

Shwankathela

Ii-MOSFET ezinamandla aphezulu ziye zaba yinxalenye ebalulekileyo yetekhnoloji ye-elektroniki yale mihla ngenxa yokusebenza kwazo okugqwesileyo kunye nezicelo ezibhetyebhetye. Ngokuqonda imigaqo yayo yokusebenza kunye neenzuzo, iinjineli kunye nabayili banokusebenzisa ngcono esi sixhobo sinamandla ukuzisa izisombululo ezisebenzayo nezithembekileyo kwihlabathi. Oku akukhuthazi kuphela inkqubela phambili yezobuchwepheshe, kodwa kuzisa lula kubomi bethu bemihla ngemihla.