Runaruna irirangi ā-a Beginner: me pehea ki te tirohia i te FET

FETs - pūrere Semiconductor, i roto i nei te transients mana, kia rite ki te pai kia rite ki te nui o te nāianei putanga mā te huri i te mara hiko. E rua ngā momo o enei whakaaro: ki te kuwaha kiriweti (i roto i te tahuri wehea ki transistors ki hanga-i roto i te hongere me arataki teihana) me ki te whakahaere i te whakawhitinga. Kei te whānui FETs tika ki ona āhuatanga ahurei e whakamahia ana i roto i te taputapu hiko: kai mana, huinga pouaka whakaata, rorohiko, me ētahi atu

A, no te whakatikatika taua taputapu tino runaruna irirangi tīmata katoa fehangahangai ki te pātai: me pehea ki te tirohia i te FET? I roto i te nuinga o te wā, kia tūpono ai manatokonga o taua huānga ka whakatika kai mana pākau i. I roto i tēnei tuhinga whakaahua tatou i roto i te kōrero ki te mahi tika i te reira.

Me pēhea te ki te tirohia i te ohmmeter FET

Tuatahi o te katoa, ki te kōkiri i whakamātautau o te FET, he mea e tika ana ki te mahi ki a reira "pinout", arā, ki te titi wāhi. Ki te rā, i reira e maha putanga rerekē o taua āhuatanga, aua, te wāhi o te electrodes i rerekē. Ka taea e maha e kitea e koe transistors Semiconductor ki hoapā hainatia. Hoki māka whakamahi reta Latin G, D, S. Ki te kahore he reira te waitohu, he mea e tika ana ki te whakamahi i ngā pukapuka tohutoro.

Na, ahua i roto i te tohu o hoapā, aparau e mea nahea ki tirohia te FET. Ko te mahi i muri mai, ko te ki te tango i te mehua haumaru tika, no te mea he tino rauangi ki te hiko pateko nga whakaaro mara, a ki te ārai i te kore o te huānga taua, he mea e tika ana ki te whakarite whenua. Ki te tango atu i te tiaki pateko putu, te tikanga mau i runga i te ringa anti-pateko here whenua.

kia kore tatou e wareware e hiahia ana koe ki te pupuri i te FETs ki whakatau kati. Te tango hiko pateko, ka taea e koe puta ki te manatoko i te tukanga. Tenei ka rapua e te mita Ohm ohie. I huānga tautururaa i waenganui i nga whakatau katoa o te ātete kia haere ki te mutu-, engari i reira e te tahi mau okotahi. Na titiro tatou i pehea ki te tirohia i te transistor pānga mara o n-momo.

te tono tatou i te pūrere uiuia pai ki te kawehiko kuwaha (G), me te uiuia tōraro ki te whakapā atu i te pūtake (S). I tenei wāhi, tīmata reira ki atu tenei te puritanga kuwaha, me te iriti i te huānga. A, no te ine i te ātete i waenganui i te pūtake me te waikeri (D) ohmmeter whakaatu etahi uara resistance. Ko nga momo rerekē o transistors, he rerekē i tēnei uara. Ki te nga terminals transistor poto-iahiko, ka tiaki ano te ātete i waenganui i te waikeri me puna ki mutu-. Ki te kore e reira, te auraa e he hē te transistor.

Ki te ui koe e founga ki te tirohia i te FET P-momo, he kuware te whakahoki: faahiti i te tukanga i runga ake e taui anake te wehenga tawhiti. kia kore tatou e wareware e hou FET mana i waenganui i te pūtake me te waikeri i te ngōhiko tinana, aua, "prozvanivatsya" te reira i roto i te kotahi aronga anake.

Tirohia FET multimeter

I roto i te aroaro o te pūrere "DMM", ka taea e te tirotiro koe i te FET. Ki te mahi i tenei, maka atu tatou i te mita ki "tonu" te p aratau me te whakauru i te huānga o te parae i te aratau tōpuni. Ki te te N-momo transistor, te uiuia tango pa ki te waikeri me te pai - marumaru. whakatuwheratia transistor hapa i roto i te take taua te. whakawhiti tatou i te uiuia tāpiri, kahore tango tango, i runga i te pūtake, me whakaatu te multimeter etahi uara resistance. Muri atu transistor: i waho ara i te stylus i te puna, haunga pa ki te marumaru, ka hoki ki te waikeri. poraka transistor me ātete whangai ana ki te mutu-.

E ui maha amateurs irirangi: "Me pēhea e tirohia e ahau i te FET, e kore vypaivaya" whakautu tonu taua ara kahore he ōrau kotahi rau. Ki te mahi i tenei, te whakamahi i te poraka multimeter o HFE, engari maha kore tenei tikanga, a ka taea e koe te whakapau i te rota o te wā maumauria.