Momwe mungadziwire kuti MOSFET yamphamvu kwambiri imawotchedwa kudzera pakuwotcha

(1) MOSFET ndi chinthu chowongolera ma voltage, pomwe transistor ndi chinthu chowongolera pakali pano. Mu luso loyendetsa palibe, galimoto yamakono ndi yaying'ono kwambiri, iyenera kusankhidwaMOSFET; ndi voteji chizindikiro ndi otsika, ndipo analonjeza kuti atenge zambiri panopa ku magetsi magetsi makina pagalimoto pagalimoto siteji zinthu, ayenera kusankhidwa transistor.

(2) MOSFET ndi ntchito zonyamulira ambiri conductive, otchedwa unipolar chipangizo, pamene transistor ndi kuti pali ambiri onyamula, komanso ntchito chiwerengero chochepa cha zonyamulira conductive. Amatchedwa chipangizo cha bipolar.

(3) ZinaMOSFET gwero ndi kuda angasinthidwe ntchito chipata voteji kungakhale zabwino kapena zoipa, kusinthasintha kuposa transistor ndi zabwino.

(4) MOSFET imatha kugwira ntchito pamagetsi ang'onoang'ono komanso otsika kwambiri, ndipo njira yake yopangira ikhoza kukhala yabwino kwambiri kuphatikiza ma MOSFET ambiri mu silicon chip, kotero ma MOSFET m'mabwalo akuluakulu ophatikizika akhala akugwiritsidwa ntchito kwambiri.

(5) MOSFET ili ndi ubwino wokhala ndi mphamvu zowonjezera komanso phokoso lochepa, choncho imagwiritsidwanso ntchito kwambiri pazida zosiyanasiyana zamagetsi. Makamaka ndi munda zotsatira chubu kuchita lonse pakompyuta zida athandizira, linanena bungwe siteji, angapeze transistor ambiri n'zovuta kufika ntchito.

(6)MOSFETs amagawidwa m'magulu awiri: mtundu wofiira wa mphambano ndi mtundu wa chipata chotsekedwa, ndipo mfundo zawo zowonongeka ndizofanana.

M'malo mwake, ma triode ndi otsika mtengo komanso osavuta kugwiritsa ntchito, omwe amagwiritsidwa ntchito kwambiri pa asodzi akale otsika kwambiri, MOSFET pamabwalo othamanga kwambiri, nthawi zamakono, kotero mtundu watsopano wa asodzi akupanga ma frequency apamwamba, ndikofunikira. ndiwamkulu MOS. kawirikawiri, zotsika mtengo nthawi, ntchito ambiri woyamba kuganizira ntchito transistors, osati ngati mukufuna kuganizira MOS.

MOSFET ndizifukwa zowonongeka ndipo mayankho ali motere

Choyamba, kukana athandizira a MOSFET palokha ndi mkulu kwambiri, ndi chipata - gwero inter-electrode capacitance ndi laling'ono kwambiri, choncho kwambiri atengeke kunja electromagnetic minda kapena electrostatic inductance ndi mlandu, ndi ndalama pang'ono akhoza kupangidwa. mu inter-electrode capacitance wa voteji moyenera mkulu (U = Q / C), adzakhala kuonongeka chubu. Ngakhale kuyika kwa MOS pamakina osodza amagetsi kumakhala ndi njira zothana ndi malo amodzi, komabe ziyenera kusamaliridwa mosamala, posungira ndi kutumiza zotengera zabwino kwambiri zachitsulo kapena ma CD opangira zinthu, musaike mosavuta kuukira voteji yapamwamba kwambiri. zida za mankhwala kapena nsalu za ulusi wamankhwala. Msonkhano, kutumiza, zinthu, maonekedwe, malo ogwirira ntchito, ndi zina zotero ziyenera kukhala maziko abwino. Kupewa woyendetsa electrostatic kusokoneza kuwonongeka, monga sayenera kuvala nayiloni, mankhwala ulusi zovala, dzanja kapena chinachake musanakhudze Integrated chipika ndi bwino kulumikiza pansi. Pazida zotsogola kuwongola ndi kupindika kapena kuwotcherera pamanja, kugwiritsa ntchito zida ndikofunikira pakuyika bwino kwambiri.