Iisekethe zokubonelela ngombane, okanye iisekethe zokubonelela ngombane kwintsimi yokuqhubela phambili, ngokuqinisekileyo zisebenziseIi-MOSFETs, eziziindidi ezininzi kwaye zinemisebenzi emininzi. Ukutshintsha unikezelo lwamandla okanye izicelo zokuqhubela phambili, kungokwemvelo ukusebenzisa umsebenzi walo wokutshintsha.
Nokuba yeyiphi na uhlobo lwe-N okanye uhlobo lwe-PI-MOSFET, umgaqo ngokusisiseko uyafana, i-MOSFET yongezwa kwisango lesiphelo sebhondi yangoku ukulawula icala lemveliso ye-drain yangoku, i-MOSFET sisixhobo esilawulwa yi-voltage esekwe kungokunje okongeziweyo kwisango kwisango. ukuguqulwa kweempawu zesixhobo, akuqhelekanga ekutshintsheni njenge-transistor ngenxa yesiseko sangoku esibangelwa yimpembelelo yokugcinwa kwentlawulo efanelekileyo, kwaye ngoko ke, kwisicelo sokutshintsha, izinga lokutshintsha kwe-MOSFET kufuneka libe ngokukhawuleza kune-transistor. Isantya sokutshintsha kufuneka sikhawuleze kune-triode.
I-MOSFETezincinci-zangoku ubushushu oonobangela
I-1, umgaqo wesekethe yengxaki kukuvumela i-MOSFET ukuba isebenze kwimo yomgca wokusebenza, kunokuba kwimeko yokutshintsha. Oku kukwangunobangela wobushushu beMOSFET. Ukuba ukutshintshwa kwe-N-MOS, i-voltage yokusebenza ye-G-level ngaphezu kokunikezelwa kwamandla okutshintsha i-V embalwa, ukwenzela ukuba ivule kwaye ivale ngokupheleleyo, i-P-MOS yenye indlela. Ayiphelelanga ngokupheleleyo kwaye ilahleko inkulu kakhulu ekhokelela ekukhutshweni kwamandla okuphuma, isekethe elinganayo yeDC ye-impedance inkulu, ilahleko iyandiswa, ngoko ke i-U * ndiyandisiwe, ukuncipha kubonisa ubushushu. Oku kwakhona kuthintelwe isekethe yolawulo lwenkqubo yoyilo olungachanekanga.
2, i-frequency iphezulu kakhulu, ubukhulu becala ngamanye amaxesha kusukelwa kakhulu umthamo ogqibeleleyo, okukhokelela kuphuculo lokuphindaphinda, i-MOSFET ekwandisweni kokusetyenziswa, ngoko ke ubushushu bunyuke.
I-3, ayizange iyenze inkqubo yoyilo yokukhutshwa kobushushu eyaneleyo, okwangoku iphezulu kakhulu, ixabiso langoku lokunyamezela kwe-MOSFET, ngokubanzi kufuneka kugcinwe ukukhutshwa okulungileyo kokushisa kunokwenziwa. Ke ngoko, i-ID ingaphantsi kunomsinga ophezulu, kusenokwenzeka ukuba ishushu kakhulu, kufuneka yanele ukunceda i-heat sink.
I-4, ukhetho lwemodeli ye-MOSFET aluchanekanga, amandla aphumayo awachanekanga, ukuchasana kwe-MOSFET akuthathelwa ngqalelo, okukhokelela ekwandeni kokutshintsha kokuphazamiseka kweempawu.
I-MOSFET encinci yokufudumeza yangoku ibaluleke kakhulu ukuba ingasonjululwa njani?
1.fumana inkqubo yoyilo lokukhutshwa kobushushu beMOSFET, uncedise inani elithile leesinki zobushushu.
2.Ncamathisela iglu engabandakanyi ubushushu.
Ixesha lokuposa: Jul-11-2024
