Monga chimodzi mwazinthu zofunika kwambiri pagawo la semiconductor, ma MOSFET amagwiritsidwa ntchito kwambiri pamapangidwe a IC ndi mabwalo a board-level. Pakadali pano, makamaka pankhani ya ma semiconductors amphamvu kwambiri, mitundu yosiyanasiyana ya ma MOSFET amakhalanso ndi gawo losasinthika. ZaZithunzi za MOSFET, kapangidwe kake kamene kakhoza kunenedwa kuti ndi chophweka komanso chophweka mu chimodzi, chophweka ndi chophweka mu kapangidwe kake, zovuta zimachokera pakugwiritsa ntchito kulingalira kwake mozama. M'masiku otsiriza,MOSFET kutentha kumaonedwanso kuti ndizochitika zofala kwambiri, chinsinsi chomwe tiyenera kudziwa zifukwa kuchokera kuti, ndi njira ziti zomwe zingathetsedwe? Kenako tiyeni tibwere pamodzi kuti timvetse.
I. Zomwe zimayambitsaMOSFET kutentha
1, vuto la kapangidwe ka dera. Ndikulola MOSFET kugwira ntchito pa intaneti, osati pakusintha. Ichi ndi chimodzi mwazifukwa zomwe MOSFET imatenthetsa. Ngati N-MOS isintha, magetsi a G-level ayenera kukhala V pang'ono kuposa magetsi kuti athe kuyatsa kwathunthu, ndipo mosiyana ndi P-MOS. Osatsegulidwa kwathunthu ndipo kutsika kwamagetsi ndikokulirapo kwambiri zomwe zimapangitsa kugwiritsa ntchito mphamvu, chofanana ndi DC impedance ndi yayikulu, kutsika kwamagetsi kumawonjezeka, kotero U * Inenso ndikuwonjezera, kutayika kumatanthauza kutentha.
2, ma frequency ndi okwera kwambiri. Nthawi zambiri nthawi zambiri zimakhala zochulukirachulukira, zomwe zimapangitsa kuti ma frequency achuluke, kutayika kwa MOSFET kukuchulukirachulukira, komwe kumabweretsanso kutentha kwa MOSFET.
3, yapano ndiyokwera kwambiri. Chidziwitso chikakhala chocheperako, chimapangitsanso MOSFET kutentha.
4, kusankha kwa mtundu wa MOSFET ndikolakwika. Kukana kwamkati kwa MOSFET sikumaganiziridwa mokwanira, zomwe zimapangitsa kuti pakhale kusintha kosinthika.二,
Njira yothetsera kutentha kwambiri kwa MOSFET
1, Chitani ntchito yabwino pamapangidwe a kutentha kwa MOSFET.
2, Onjezani zowonjezera zowonjezera zowonjezera kutentha.
3, Matani zomatira zomangira kutentha.
Nthawi yotumiza: May-19-2024
