M'malo mwake, kuchokera ku dzinali, mphamvu ya MOSFET ndikuti imatha kugwiranso ntchito pomwe zotulutsa zili zazikulu, gulu la MOSFET limagawidwa m'mitundu yambiri, yomwe mozungulira mawonekedwe akugwiritsa ntchito mphamvu titha kugawidwa kukhala kukulitsa ndi kuchepa kwa mtundu, ngati mogwirizana ndi njira kusankha mawu akhoza kugawidwa mu mtundu N-channel ndi P-channel mtundu.
Ma MOSFET amagwiritsidwa ntchito makamaka ngati makina osinthira pamakina omwe amatulutsa mphamvu. Ngati tiwonjezera magetsi ena pakati pa chipata ndi gwero la N-channel MOSFET, idzayatsa magetsi ake. Mphamvu yamagetsi ikayatsidwa, mphamvuyi imayenda kudzera pa switch yamagetsi kuchokera ku drain kupita kugwero. Pali kukana kwamkati pakati pa kukhetsa ndi gwero, komwe timawatcha kuti on-resistor RDS(ON). Ziyenera kuonekeratu kuti chipata cha MOSFET kwenikweni ndi choyimira chapamwamba kwambiri, chifukwa chake tiyenera kuwonjezera magetsi ena pachipata. Pamene magetsi pakati pa gwero ndi chipata ndi zero, chosinthira mphamvu chimazimitsa ndipo kutuluka kwaposachedwa kumatha molingana ndi chipangizocho. Ngakhale chipangizocho chazimitsidwa kwa nthawi yayitali, pakali pano kachulukidwe kakang'ono, komwe kumatchedwa IDSS yaposachedwa.
ChifukwaZithunzi za MOSFETndi chimodzi mwazinthu zofunika kwambiri pamagetsi owongolera magetsi, kusankha MOSFET yoyenera kumakhala ndi gawo lofunikira pakupambana kwa pulogalamu yonse yopangira. Pokhapokha podziwa mitundu ya ma MOSFET ndi mawonekedwe awo ofunikira, opanga amatha kusankha MOSFET yoyenera pamapangidwe enaake.
Power MOSFET ndi gulu lomwe limagwiritsidwa ntchito kwambiri pazida zamagetsi, dzina lonse la Chinese ndi - metal oxide semiconductor field effect chubu. Ndi ya chipangizo chotulutsa mphamvu, makamaka chopangidwa ndi zitsulo, okusayidi ndi zida za semiconductor. Ndiye mphamvu ndi chiyaniMOSFET?
Kupyolera mu chitukuko chamsika chogwira ntchito ndi kuphatikiza kwazinthu zothandiza,olukeyyakhala imodzi mwazinthu zotsogola komanso zomwe zikukula mwachangu ku Asia, ndipo ndi cholinga chodziwika bwino cha olukey kukhala wothandizira wofunika kwambiri padziko lonse lapansi. Kwa zaka zambiri, kampani olukey kupulumuka ngongole, kutsatira cholinga "chabwino choyamba, utumiki choyamba" ndi mabizinesi ambiri zamakono kunyumba ndi kunja, fakitale choyambirira kukhazikitsa ubale wabwino ntchito, ndi zaka zambiri akatswiri zinachitikira kugawa. , ndi ngongole yabwino, utumiki wabwino kwambiri, ndipo anthu ambiri adakhulupirira ndi kuthandizidwa.
Nthawi yotumiza: Jul-09-2024
