Koj puas paub peb tus ncej ntawm MOSFET?

MOSFET (Hlau-Oxide-Semiconductor Field-Effect Transistor) muaj peb tus ncej uas yog:

Rooj vag:G, lub rooj vag ntawm MOSFET yog sib npaug rau lub hauv paus ntawm ib tug bipolar transistor thiab yog siv los tswj cov conduction thiab txiav tawm ntawm MOSFET. Nyob rau hauv MOSFETs, lub rooj vag voltage (Vgs) txiav txim seb ib tug conductive channel yog tsim ntawm qhov chaw thiab ntws, raws li zoo raws li qhov dav thiab conductivity ntawm cov conductive channel. Lub rooj vag yog ua los ntawm cov ntaub ntawv xws li hlau, polysilicon, thiab lwm yam, thiab yog ib puag ncig los ntawm ib txheej insulating (feem ntau silicon dioxide) los tiv thaiv tam sim no los ntawm ntws ncaj qha mus rau hauv los yog tawm ntawm lub qhov rooj.

Qhov chaw:S, qhov chaw ntawm MOSFET yog sib npaug rau lub emitter ntawm ib tug bipolar transistor thiab yog qhov chaw uas tam sim no ntws. Nyob rau hauv N-channel MOSFETs, lub hauv paus feem ntau yog txuas nrog rau qhov tsis zoo davhlau ya nyob twg (los yog hauv av) ntawm lub hwj chim mov, thaum nyob rau hauv P-channel MOSFETs, lub hauv paus yog txuas mus rau lub zoo davhlau ya nyob twg ntawm lub hwj chim mov. Lub hauv paus yog ib qho ntawm cov khoom tseem ceeb uas tsim cov kev coj ua channel, uas xa cov hluav taws xob (N-channel) lossis qhov (P-channel) mus rau qhov ntws thaum lub rooj vag voltage siab txaus.

Dej ntws:D, qhov ntws ntawm MOSFET yog sib npaug rau cov khoom siv ntawm lub tshuab hluav taws xob bipolar thiab yog qhov chaw uas tam sim no ntws mus rau hauv. Cov dej ntws feem ntau txuas nrog lub load thiab ua raws li cov zis tam sim no hauv Circuit Court. Hauv MOSFET, qhov ntws tawm yog lwm qhov kawg ntawm cov khoom siv hluav taws xob, thiab thaum lub rooj vag hluav taws xob tswj kev tsim cov kab hluav taws xob ntawm lub hauv paus thiab ntws, tam sim no tuaj yeem ntws los ntawm qhov chaw los ntawm cov channel mus rau qhov ntws.

Nyob rau hauv ib lub ntsiab lus, lub rooj vag ntawm MOSFET yog siv los tswj thiab tawm, qhov chaw yog qhov chaw uas tam sim no ntws tawm, thiab cov dej ntws tawm yog qhov chaw uas tam sim no ntws mus. .