Kuzivikanwa kweInsulated Layer Gate MOSFETs

Insulation layer gedhi mhando MOSFET aliasMOSFET (inozonzi MOSFET), iyo ine tambo sheath yesilicon dioxide pakati pegedhi voltage uye sosi yekudonha.

MOSFET zvakareN-chiteshi uye P-chiteshi mapoka maviri, asi chikamu chega chega chakakamurwa kuva kusimudzira uye kuderera kwechiedza mhando mbiri, saka kune huwandu hwemhando ina:N-chiteshi kusimudzira, P-channel enhancement, N-channel light depletion, P-channel light depletion type. Asi uko gedhi sosi voltage iri zero, iyo yekudonha ikozvino iri zero yepombi inowedzerwa chubhu. Nekudaro, uko gedhi sosi voltage iri zero, iyo yekudonhedza ikozvino haisi zero inoiswa mumapoka semhando-inopedza chiedza machubhu.
Yakavandudzwa MOSFET musimboti:

Paunenge uchishanda pakati pegedhi sosi isingashandisi voltage, iyo yepakati yekudonhedza sosi PN junction iri kune yakatarisana, saka hapazove neiyo conductive chiteshi, kunyangwe kana iri pakati peiyo dhiraivha sosi ine voltage, iyo conductive trench magetsi yakavharwa, hazvibviri kuve nekushanda ikozvino maererano. Kana iyo yepakati pegedhi sosi pamwe nechakanaka gwara remagetsi kune imwe kukosha, pakati peiyo dhizaini sosi inoburitsa conductive kuchengetedza chiteshi, kuitira kuti conductive mugero uchangobva kugadzirwa negedhi rino sosi voltage inonzi yakavhurika voltage VGS, iyo yakakura pakati pegedhi sosi voltage, iyo conductive mugero yakafara, iyo inozoita kuburikidza nehukuru hwekuyerera kwemagetsi.

Nheyo yeChiedza Dissipative MOSFET:

Mukushanda, hapana magetsi anoshandiswa pakati pegedhi sosi, kusiyana nemhando yekusimudzira MOSFET, uye chiteshi chinofambisa chiripo pakati penzvimbo yekugezesa, saka chete voltage yakanaka inowedzerwa pakati peiyo sosi, iyo inoyerera. inoguma nekudonha kwezvino kuyerera. Uyezve, gedhi rinobva pakati penzira yakanaka yevoltage, iyo conductive chiteshi kuwedzera, wedzera yakatarisana nemhepo, iyo conductive chiteshi inodzikira, kuburikidza nekuyerera kwemagetsi ichave idiki, nekusimudzira kweMOSFET kuenzanisa, inogonawo kuva munhamba yakanaka uye yakaipa yeimwe nhamba yematunhu mukati meconductive channel.

MOSFET kushanda:

Kutanga, maMOSFET anoshandiswa kuwedzera. Nekuti kuramba kwekuisa kweMOSFET amplifier kwakakwira zvakanyanya, saka iyo sefa capacitor inogona kuve idiki, pasina chikonzero chekushandisa electrolytic capacitors.

Chechipiri, MOSFET yakanyanya kupinza yekupokana inonyanya kukodzera iyo hunhu impedance shanduko. Inowanzo shandiswa mune akawanda-level amplifier yekupinza nhanho yehunhu impedance shanduko.

MOSFET inogona kushandiswa seyakagadziriswa resistor.

Chechina, MOSFET inogona kuve nyore semagetsi eDC.

V. MOSFET inogona kushandiswa sechinhu chinochinja.