Karolo ea MOSFET lipotolohong

MOSFETsbapala karoloka ho fetola lipotolohoke ho laola potoloho ho bulela le ho tima le ho fetola mats'oao.MOSFETs e ka aroloa ka bophara ka mekhahlelo e 'meli: mocha oa N le oa P.

Ka mocha oa NMOSFETpotoloho, phini ea BEEP e holimo ho nolofalletsa karabo ea buzzer, 'me e tlase ho tima buzzer.P-channelMOSFETho laola phepelo ea motlakase oa mojule oa GPS ho tima le ho tima, phini ea GPS_PWR e tlase ha e bulehile, mojule oa GPS o phepelo e tloaelehileng ea motlakase, le holimo ho etsa hore mojule oa GPS o time.

P-channelMOSFETkarolong ea N-mofuta oa silicon sebakeng sa P + e na le tse peli: drain le mohloli. Lipalo tsena tse peli ha li tsamaisane, ha ho e-na le matla a lekaneng a lekaneng a kenyelletsoeng mohloling ha a theoa fatše, karolo ea N-mofuta oa silicon e ka tlas'a heke e tla hlaha e le mofuta oa P-mofuta o fapaneng, ho kena mocha o kopanyang metsi le mohloli. . Ho fetola motlakase hekeng ho fetola bongata ba masoba a kanaleng, ka hona ho fetola khanyetso ea mocha. Sena se bitsoa P-channel enhancement field effect transistor.

Litšobotsi tsa NMOS, Vgs hafeela boleng bo itseng bo ntse bo le teng, bo sebetsa mohloling o thehileng mochini o tlase oa koloi, ha feela motlakase oa heke oa 4V kapa 10V o le moleng.

Litšobotsi tsa PMOS, ho fapana le NMOS, li tla bulela ha feela Vgs e le tlase ho boleng bo itseng, 'me e loketse ho sebelisoa ha ho na le koloi e phahameng ha mohloli o hokahane le VCC. Leha ho le joalo, ka lebaka la palo e nyane ea mefuta e ncha, khanyetso e phahameng le theko e phahameng, le hoja PMOS e ka sebelisoa ka mokhoa o bonolo haholo tabeng ea koloi e phahameng, kahoo ka koloi e phahameng, ka kakaretso e ntse e sebelisa NMOS.

Ka kakaretso,MOSFETse na le impedance e phahameng ea ho kenya letsoho, e thusa ho hokahanya ka kotloloho lipotolohong, 'me ho bonolo ho e etsa lipotolohong tse kholo tse kopaneng.