Isesengura ryimpamvu zingenzi zitera ubushyuhe bwinshi

N ubwoko, P ubwoko bwa MOSFET ihame ryakazi rya essence nimwe, MOSFET yongewemo cyane cyane kuruhande rwinjiza rwa voltage yumuryango kugirango igenzure neza uruhande rusohoka rwumuyoboro wamazi, MOSFET nigikoresho kigenzurwa na voltage, binyuze mumashanyarazi yongeweho ku irembo kugenzura ibiranga igikoresho, bitandukanye na triode yo gukora igihe cyo guhinduranya bitewe nubu shingiro ryatewe ningaruka zo kubika amafaranga, muguhindura porogaramu, MOSFET's Muguhindura porogaramu,MOSFET's guhinduranya umuvuduko birihuta kurenza triode.

Muguhindura amashanyarazi, mubisanzwe bikoreshwa MOSFET ifunguye imiyoboro yumurongo, imiyoboro ihujwe numutwaro nkuko aribyo, bita imiyoboro ifunguye, imiyoboro ifunguye imiyoboro, umutwaro uhujwe nuburyo voltage iri hejuru, ibasha kuzimya, kuzimya umutwaro ugezweho, nigikoresho cyiza cyo kugereranya ibikoresho, niryo hame rya MOSFET yo gukora ibikoresho byo guhinduranya, MOSFET yo gukora guhinduranya muburyo bwimikorere myinshi.

Kubijyanye no guhindura amashanyarazi yatanzwe, iyi porogaramu irasaba MOSFETS gukora buri gihe, kuzimya, nka DC-DC itanga amashanyarazi akunze gukoreshwa muburyo bwibanze buck yishingikiriza kuri MOSFETs ebyiri kugirango ikore umurimo wo guhinduranya, izi sisitemu zindi muburyo bwa inductor kugirango zibike ingufu, zirekura ingufu mumitwaro, akenshi zihitamo amagana ya kHz cyangwa ndetse arenga 1 MHz, cyane cyane ko iyo inshuro nyinshi iyo ari nini, ibice bya magneti. Mugihe gikora gisanzwe, MOSFET ihwanye nuyobora, kurugero, MOSFETs ifite ingufu nyinshi, MOSFETs ntoya, amashanyarazi, imashanyarazi, amashanyarazi ni igihombo gito cyo gutwara MOS.

MOSFET ibipimo bya PDF, abakora MOSFET bafashe neza ibipimo bya RDS (ON) kugirango basobanure inzitizi kuri leta, kugirango bahindure porogaramu, RDS (ON) nigikoresho cyingenzi kiranga; urupapuro rwerekana ibisobanuro RDS (ON), irembo (cyangwa gutwara) voltage VGS hamwe numuyoboro unyura muri switch bifitanye isano, kubireba amarembo ahagije, RDS (ON) nikintu gihagaze neza; MOSFETs zagiye zikoreshwa zikunda kubyara ubushyuhe, kandi buhoro buhoro ubushyuhe bwihuza bushobora gutuma kwiyongera kwa RDS (ON);BYINSHI urupapuro rwerekana ibipimo byerekana ubushyuhe bwumuriro, bisobanurwa nkubushobozi bwimikorere ya semiconductor ya pake ya MOSFET yo gukwirakwiza ubushyuhe, kandi RθJC isobanurwa gusa nkimpuzamikorere-yubushyuhe.

1. agaciro keza ka MOSFET, gukenera ubushyuhe bwiza kugirango ubashe kubigeraho; Indangamuntu iri munsi yikigereranyo kinini, irashobora kuba ubushyuhe bukabije, gukenera ubushyuhe buhagije.

3, kubera ibibazo byubushakashatsi bwumuzunguruko, bikavamo ubushyuhe, kuburyo MOSFET ikora muburyo bukora kumurongo, ntabwo iri muburyo bwo guhinduranya, ikaba ari impamvu itaziguye yo gushyushya MOSFET, urugero, N-MOS ikora guhinduranya, G- urwego voltage igomba kuba hejuru kurenza amashanyarazi na V nkeya, kugirango ubashe gukora neza, P-MOS iratandukanye; mugihe habuze gufungura byuzuye, kugabanuka kwa voltage nini cyane, bizavamo gukoresha ingufu, ihwanye na DC impedance nini, kugabanuka kwa voltage nabyo biziyongera, U * Nanjye nziyongera, igihombo kizana ubushyuhe.