Mabwalo opangira magetsi, kapena mabwalo opangira magetsi pagawo la propulsion, azigwiritsa ntchito mosapeŵekaZithunzi za MOSFET, omwe ali amitundu yambiri ndipo ali ndi ntchito zambiri. Pakusintha magetsi kapena ma propulsion application, ndizachilengedwe kugwiritsa ntchito kusintha kwake.
Mosasamala mtundu wa N kapena P-mtunduMOSFET, mfundoyi ndi yofanana, MOSFET imawonjezedwa pachipata chakumapeto kwamakono kuti athe kuwongolera mbali ya kukhetsa kwapano, MOSFET ndi chipangizo choyendetsedwa ndi magetsi chomwe chimakhazikitsidwa ndi zomwe zawonjezeredwa pa chipata. Kuwongolera mawonekedwe a chipangizocho, sikumakonda kusinthana ngati transistor chifukwa chapansi pano chifukwa cha kusungirako kosungirako, chifukwa chake, posinthira, kusintha kwa MOSFET kuyenera kukhala kofulumira kuposa transistor. Kuthamanga kuyenera kukhala kofulumira kuposa katatu.
MOSFETzing'onozing'ono kutentha kutentha zimayambitsa
1, mfundo yoyendetsera vutoli ndikulola MOSFET kuti igwire ntchito moyenera, m'malo mosintha. Izi ndi chifukwa cha kutentha kwa MOSFET. Ngati kusintha kwa N-MOS, magetsi ogwiritsira ntchito G-level kusiyana ndi magetsi osinthika V ochepa, kuti athe kuyatsa ndi kuzimitsa kwathunthu, P-MOS ndi njira ina. Osati kwathunthu ndipo kutayika kumakhala kwakukulu kwambiri zomwe zimapangitsa kuti mphamvu zotulutsa mphamvu ziwonongeke, chofanana ndi dera la DC khalidwe lachidziwitso ndilokulirapo, kutayika kumakulitsidwa, kotero U * I imakulitsidwanso, kuchepa kumayimira kutentha. Ichinso ndi chopewa kwambiri chopewedwa molakwika dongosolo dongosolo control dera.
2, mafupipafupi ndi okwera kwambiri, makamaka nthawi zina kufunafuna voliyumu yabwino kwambiri, zomwe zimapangitsa kuti pakhale kuwonjezereka kwafupipafupi, MOSFET pakukula kwa mowa, kotero kutentha kumawonjezekanso.
3, sinapange pulogalamu yokwanira yopatula kutentha, yomwe ilipo ndi yokwera kwambiri, kulekerera kwa MOSFET pakali pano, nthawi zambiri kuyenera kukhalabe ndi kutentha kwabwino kungathe kuchitika. Chifukwa chake, ID ndiyotsika kuposa yapano, imathanso kutentha kwambiri, iyenera kukhala yokwanira kuthandizira kuzama kwa kutentha.
4, kusankha kwachitsanzo cha MOSFET sikulondola, mphamvu zotulutsa sizili zolondola, kukana kwa MOSFET sikumaganiziridwa, zomwe zimapangitsa kukulitsa kwa kusintha kwa mawonekedwe.
Kutentha kwakung'ono kwa MOSFET ndikovuta kwambiri momwe mungathetsere?
1.pezani pulogalamu yopangira MOSFET yopatula kutentha, thandizirani kuchuluka kwa masinki otentha.
2.Paste guluu wosapatula kutentha.
Nthawi yotumiza: Jul-11-2024
