Nigute ushobora kumenya niba MOSFET ari nziza cyangwa mibi?

Hariho uburyo bubiri bwo kuvuga itandukaniro riri hagati ya MOSFET nziza nicyiza:
Iya mbere: gutandukanya ubuziranenge ibyiza nibibi byaMOSFETS

Banza ukoreshe multimeter R × 10kΩ (yashyizwemo 9V cyangwa 15V yumuriro wa batiri), ikaramu mbi (umukara) ihujwe n irembo (G), ikaramu nziza (umutuku) ihujwe nisoko (S). Ku irembo, isoko ya bateri yo hagati yishyuza, hanyumaMultimeter urushinge rufite gutandukana byoroheje. Noneho hindura kuri multimeter R × 1Ω guhagarika,ibibi ikaramu kumuyoboro (D), ikaramu nziza kumasoko (S), multimeter yanditseho agaciro niba mama wa ohm bake, byerekana ko MOSFET ari nziza.

Nigute ushobora kumenya niba MOSFET ari nziza cyangwa mbi

Iya kabiri: gukemura neza urwego rwamashanyarazi rwihuza MOSFETsMultimeter izahamagarwa kuri dosiye ya R × 100, ikaramu itukura ihujwe ku buryo butunguranye n'ikirenge, ikaramu y'umukara ihujwe n'indi miyoboro y'ibirenge, ku buryo ikirenge cya gatatu kimanitse mu kirere. Niba ubonye urushinge rufite akajagari gato, byemejwe ko ikirenge cya gatatu kumarembo. Kugirango ubone ibisobanuro byingenzi byingaruka zifatika, ariko kandi no kunyeganyega kuri elegitoronike hafi cyangwa no gukoraho urutoki umanitse mumaguru yikirere, gusa ukabona urushinge rwo gutandukana runini, ni ukuvuga ko byerekana ko kumanika mumaguru yikirere ari irembo , andi maguru abiri niyo soko n'amazi.

Gutandukanya Impamvu:

JFET irwanya kwinjiza birenze 100MΩ, kandi transconductance ni ndende cyane, mugihe irembo riyoboye umwanya wo mu kirere magnetiki yumurima byoroshye cyane gukurura magnetiki ibimenyetso byerekana imbaraga za voltage ikora kumarembo, kuburyo umuyoboro ukunda kuba hejuru, cyangwa ugenda Kuri. Niba umubiri wa induction voltage uhita wongerwa kumuryango, kubera ko urufunguzo rwibanze rwa electromagnetic rukomeye, ibintu byavuzwe haruguru bizaba byinshi kandi bikomeye. Niba urushinge rwa metero ibumoso bwuruhande runini, mwizina ryumuyoboro ukunda nko, kwagura-isoko-imiyoboro irwanya RDS kwaguka, imiyoboro-y-isoko ya IDS yagabanutse. muburyo bunyuranye, urushinge rwa metero iburyo bwiburyo bunini, byerekana ko umuyoboro ukunda kugenda, RDS ↓, IDS ↑. Nyamara, urushinge rwa metero amaherezo yerekeza ku cyerekezo cyo gutandukana, bigomba guterwa ninkingi nziza kandi mbi ya voltage yatewe (icyerekezo cyiza cya voltage ikora cyangwa icyerekezo cyerekezo cyumubyigano wakazi) hamwe nicyerekezo cyumuyoboro wicyuma.
Ubuvumo:
. Ariko, niba amaboko yombi akora kuri buri D, S-pole, hamwe nintoki zikora ku irembo, birashoboka kwitegereza urushinge rwiburyo. Intandaro ni umubiri wimyanya myinshi hamwe na résistorants kuri MOSFET ifite aho yerekeza ingaruka, kuburyo yinjira mukarere ka kwiyuzuzamo.