Ndi MISFET ndi chiyani?

Mchitidwe m'munsi zipangizo michenga yopangira zida zamagetsi chikukulirakulirabe. Aliyense njira yatsopano m'munda Kwenikweni, lingaliro la kusintha machitidwe zonse zamagetsi. Kusintha mphamvu dera zinachita kulengedwa kulinganiza kapangidwe ka zinthu zatsopano kuonekera pa iwo. Popeza kuyambitsa wa transistor choyamba (1948 g) anapatsidwa nthawi yaitali. Iwo anali anatulukira kapangidwe "pnp" ndi "npn", transistors ochititsa kuti. Pa nthawi anaonekera Mis transistor, ntchito pa mfundo za kusintha madutsidwe magetsi a pamwamba michenga yopangira zida zamagetsi wosanjikiza mchikakamizo cha munda magetsi. Choncho dzina lina chinthu ichi - munda.

TIR chidule yokha (zitsulo-insulator-michenga yopangira zida zamagetsi) amadziwika kapangidwe mkati mwa zida izi. Ndipo ndithu, shutter izo olekanitsidwa magwero ndi kuda ndi wosanjikiza woonda sanali conductive. Modern Mis transistor ali ndi chipata kutalika 0,6 microns. Kudzera likhoza pochitika minda mu atomu - kuti amakhudza boma magetsi a michenga yopangira zida zamagetsi lapansi.

Tiyeni tione mmene kunja zotsatira transistor, ndi kupeza zomwe ndi kusiyana zazikulu ochititsa kuti "mbale." Pamene mphamvu zofunika pa chipata chake pali munda mu atomu. Zingamvekere kulimbikira kwa Mphambano gwero-kuda zolumikizanazo. Pano pali ubwino ntchito chipangizo ichi.

• Poyera boma kusintha kukana njira kuda-gwero ndi laling'ono kwambiri, ndipo Mis transistor wakhala bwinobwino ntchito ngati makiyi amagetsi. Mwachitsanzo, mwina kulamulira mkuzamawu ntchito, anyalanyaza katundu kapena kuchita nawo madera nzeru.
• Komanso wa dziwani ndi mkulu athandizira impedance chipangizo. Izi ndi zomveka ndithu pamene akugwira m'madera otsika-voteji.
• Low mphamvu kuda-gwero kusintha amalola Mis transistor mu zipangizo mkulu-pafupipafupi. Palibe kupotoza zidzachitika kufala chizindikiro.
• Development wa umisiri watsopano kupanga zinthu zinachititsa kuti chilengedwe cha IGBT-transistors, amene kuphatikiza makhalidwe abwino a m'munda ndi maselo ochititsa kuti. Mphamvu zigawo zochokera iwo ankagwiritsa ntchito starters zofewa ndi converters pafupipafupi.

Mu kapangidwe ndi ntchito zinthu izi ziyenera n'komwe kuti Mis transistors ali tcheru kwambiri overvoltage yadera ndi magetsi malo amodzi. Ndiko kuti, chipangizo akhoza kuonongeka ngati kukhudza malo kulamulira. Pamene khazikitsa kapena kuchotsa ntchito grounding wapadera.

Ziyembekezo ntchito chipangizo izi ndi zabwino kwambiri. Chifukwa katundu wake wapadera, izo chimagwiritsidwa ntchito zida zosiyanasiyana amagetsi. Nzeru malangizo zamagetsi zamakono ndi kugwiritsa ntchito mphamvu IGBT-zigawo ntchito m'madera osiyanasiyana, kuphatikizapo, ndi kupatsidwa ulemu.

Kagwiridwe ka mankhwala awo nthawi zonse zilibwino. Iwo akupangidwa kwa makulitsidwe (kuchepetsa) chipata kutalika. Izi kusintha magawo ntchito kale wabwino chipangizo.