Ua noʻonoʻo paha nā mea hoʻolālā kaapuni i kahi nīnau i ke koho ʻana i nā MOSFET: Pono anei lākou e koho i ka MOSFET P-channel a i ʻole ka MOSFET N-channel?Ma ke ʻano he mea hana, pono ʻoe e makemake i kāu huahana e hoʻokūkū me nā mea kālepa ʻē aʻe ma nā kumukūʻai haʻahaʻa, a pono ʻoe e hana hou i nā hoʻohālikelike.No laila pehea e koho ai?ʻO OLUKEY, kahi mea hana MOSFET me 20 mau makahiki o ka ʻike, makemake e kaʻana like me ʻoe.
ʻOkoʻa 1: nā hiʻohiʻona conduction
ʻO nā hiʻohiʻona o N-channel MOS ʻo ia ka mea e huli i ka wā i ʻoi aku ka nui o Vgs ma mua o kahi waiwai.He kūpono ia no ka hoʻohana ʻana i ka wā i hoʻopaʻa ʻia ai ke kumu (low-end drive), inā lōʻihi ka hiki ʻana o ka volta puka 4V a i ʻole 10V.E pili ana i nā hiʻohiʻona o P-channel MOS, e hoʻohuli ʻia i ka wā i emi ai ka Vgs ma mua o kahi waiwai, kūpono i nā kūlana i hoʻopili ʻia ke kumu i VCC (high-end drive).
ʻokoʻa 2:MOSFEThoʻololi poho
Inā he N-channel MOS a i ʻole P-channel MOS, aia kahi kū'ē ma hope o ka hoʻāla ʻia ʻana, no laila e hoʻopau ke au i ka ikehu ma kēia kūʻē.Ua kapa ʻia kēia ʻāpana o ka ikehu i hoʻopau ʻia.ʻO ke koho ʻana i kahi MOSFET me kahi kūʻē liʻiliʻi e hōʻemi i ka nalowale o ka conduction, a ʻo ke kū kūʻē ʻana o nā MOSFET haʻahaʻa haʻahaʻa i kēia manawa ma kahi o ʻumi miliona, a he mau miliohm kekahi.Eia kekahi, ke ho'ā a hoʻopau ʻia ka MOS, ʻaʻole pono e hoʻopau koke.Aia ke kaʻina emi iho, a ʻo ke au e kahe ana kekahi kaʻina mahuahua.
I loko o kēia manawa, ʻo ka nalowale o ka MOSFET ka huahana o ka volta a me ke au, i kapa ʻia ʻo ka nalowale hoʻololi.ʻO ka mea maʻamau, ʻoi aku ka nui o nā poho hoʻololi ma mua o nā poho conduction, a ʻoi aku ka kiʻekiʻe o ke alapine hoʻololi, ʻoi aku ka nui o nā poho.ʻO ka huahana o ka volta a me ke au i ka manawa o ka conduction he nui loa, a he nui loa ka pohō i hana ʻia, no laila ʻo ka pōkole o ka manawa hoʻololi e hōʻemi i ka nalowale i kēlā me kēia conduction;hiki ke hoemi i ka nui o na hoololi no ka wae manawa.
ʻOkoʻa ʻekolu: hoʻohana MOSFET
He haʻahaʻa ka mobility puka o P-channel MOSFET, no laila ke like ka nui geometric o ka MOSFET a me ka waiwai paʻa o ka volta hana, ʻoi aku ka liʻiliʻi o ka transconductance o P-channel MOSFET ma mua o ka MOSFET N-channel.Eia kekahi, ʻoi aku ka kiʻekiʻe o ka waiwai o ka paepae paepae o P-channel MOSFET, e koi ana i ka volta hana kiʻekiʻe.Loaʻa i ka P-channel MOS kahi koʻi loiloi nui, kahi kaʻina hana lōʻihi a me ka hoʻokuʻu ʻana, a me kahi transconductance liʻiliʻi, no laila ʻoi aku ka haʻahaʻa o kāna hana.Ma hope o ka puka ʻana o N-channel MOSFET, ua hoʻololi ʻia ka hapa nui o lākou e N-channel MOSFET.Eia nō naʻe, no ka mea he kaʻina hana maʻalahi ka MOSFET P-channel a maʻalahi hoʻi, hoʻohana mau kekahi mau kaʻa kaʻa kaʻapuni PMOS a me ka liʻiliʻi.
ʻAe, ʻo ia wale nō ka kaʻana like ʻana o kēia lā mai OLUKEY, kahi mea hana MOSFET paʻi.No ka ʻike hou aku, hiki iā ʻoe ke loaʻa iā mākou ma kaOLUKEYpunaewele kūhelu.Ua kālele ʻo OLUKEY i ka MOSFET no 20 mau makahiki a ʻo ia ke keʻena nui ma Shenzhen, Guangdong Province, Kina.Hoʻohana nui ʻia i nā transistors hopena kiʻekiʻe o kēia manawa, MOSFET mana kiʻekiʻe, MOSFET puʻupuʻu nui, MOSFET puʻupuʻu liʻiliʻi, MOSFET puʻupuʻu liʻiliʻi, MOSFET liʻiliʻi liʻiliʻi, MOS field effect tubes, MOSFET paʻa, mana MOS, MOSFET pūʻolo, MOSFET mua, MOSFET i hoʻopili ʻia, etc. ʻO WINSOK ka huahana luna nui.
Ka manawa hoʻouna: Dec-17-2023
