Abaqulunqi beesekethe mabawuthathele ingqalelo umbuzo xa bekhetha ii-MOSFETs: Ngaba kufuneka bakhethe i-P-channel MOSFET okanye i-N-channel MOSFET? Njengomvelisi, kufuneka ufune iimveliso zakho zikhuphisane nabanye abathengisi ngamaxabiso aphantsi, kwaye kufuneka wenze uthelekiso oluphindaphindiweyo. Ngoko njani ukukhetha? U-OLUKEY, umenzi we-MOSFET oneminyaka engama-20 yamava, angathanda ukwabelana nawe.
Umahluko 1: iimpawu zokuqhuba
Iimpawu ze-N-channel MOS kukuba iya kuvulwa xa i-Vgs inkulu kunexabiso elithile. Kufanelekile ukusetyenziswa xa umthombo usekelwe (i-low-end drive), nje ukuba i-voltage yesango ifikelela kwi-4V okanye i-10V. Ngokumalunga neempawu ze-P-channel MOS, iya kuvula xa i-Vgs ingaphantsi kwexabiso elithile, elifanelekileyo kwiimeko xa umthombo uxhunyiwe kwi-VCC (i-high-end drive).
Umahluko 2:I-MOSFETilahleko yokutshintsha
Ingaba i-N-channel MOS okanye i-P-channel MOS, kukho i-on-resistance emva kokuba ivuliwe, ngoko ke okwangoku kuya kudla amandla kule nkcaso. Le nxalenye yamandla asetyenzisiweyo ibizwa ngokuba yilahleko yokuqhuba. Ukukhetha i-MOSFET enokumelana okuncinci kuya kunciphisa ilahleko yokuqhuba, kwaye ukuxhathisa kwi-MOSFETs yangoku yamandla aphantsi ngokubanzi kujikeleze amashumi eemiliyoni, kwaye kukho iimiliyoni ezininzi. Ukongeza, xa i-MOS ivuliwe kwaye icinyiwe, akufuneki igqitywe ngoko nangoko. Kukho inkqubo ehlayo, kwaye umsinga oqukuqelayo nawo unenkqubo eyandayo.
Ngeli xesha, ilahleko ye-MOSFET yimveliso yombane kunye neyangoku, ebizwa ngokuba yi-switching loss. Ngokuqhelekileyo ukutshintshwa kwelahleko kukhulu kakhulu kunelahleko yokuqhuba, kwaye iphezulu i-frequency switching frequency, inkulu ilahleko. Imveliso ye-voltage kunye yangoku ngexesha lokuqhuba likhulu kakhulu, kwaye ilahleko ebangelwayo nayo inkulu kakhulu, ngoko ke ukunciphisa ixesha lokutshintsha kunciphisa ilahleko ngexesha lokuqhuba ngalunye; ukunciphisa i-frequency yokutshintsha kunokunciphisa inani lokutshintsha ngexesha leyunithi.
Umahluko ezintathu: MOSFET ukusetyenziswa
Ukuhamba komngxuma we-P-channel MOSFET kuphantsi, ngoko ke xa ubukhulu bejometri ye-MOSFET kunye nexabiso elipheleleyo le-voltage yokusebenza lilingana, i-transconductance ye-P-channel MOSFET incinci kune-N-channel MOSFET. Ukongeza, ixabiso elipheleleyo lombane we-threshold ye-P-channel MOSFET liphezulu noko, lifuna amandla ombane aphezulu okusebenza. I-P-channel MOS ine-logic swing enkulu, inkqubo yokutshaja kunye nokukhupha ixesha elide, kunye ne-transconductance yesixhobo esincinci, ngoko isantya sayo sokusebenza sisezantsi. Emva kokuvela kwe-N-channel MOSFET, uninzi lwazo luthatyathelwe indawo yi-N-channel MOSFET. Nangona kunjalo, ngenxa yokuba i-P-channel MOSFET inenkqubo elula kwaye inexabiso eliphantsi, ezinye iisekethe zolawulo lwedijithali eziphakathi nezincinci zisasebenzisa itekhnoloji yesekethe ye-PMOS.
Kulungile, konke oko kukwabelana kwanamhlanje okuvela ku-OLUKEY, umenzi wokupakisha we-MOSFET. Ukuze ufumane inkcazelo engakumbi, ungasifumana kwiOLUKEYwebsite esemthethweni. U-OLUKEY ugxile kwi-MOSFET iminyaka engama-20 kwaye ikomkhulu lakhe lihlala eShenzhen, kwiPhondo laseGuangdong, eChina. Ikakhulu ibandakanyeka kwi-transistors yempembelelo yentsimi ephezulu yangoku, ii-MOSFETs zamandla aphezulu, ii-MOSFETs zeephakheji ezinkulu, ii-MOSFETs zombane ezincinci, ii-MOSFETs zeephakheji ezincinci, ii-MOSFETs zangoku, iityhubhu zempembelelo ye-MOS, ii-MOSFET ezipakishweyo, ii-MOSFET zamandla, iipakethe ze-MOSFET, ii-MOSFETs zangaphambili, ii-MOSFETs ezipakishweyo, njl. Imveliso ye-arhente ephambili yi-WINSOK.
Ixesha lokuposa: Dec-17-2023
