Nigute nshobora kuvuga itandukaniro riri hagati ya Mosfets imbaraga nintege nke?

Igihe cyo kohereza: Nzeri-01-2023

Hariho uburyo bubiri bwo gutandukanya ibyiza bya Mosfet nibibi.

Iya mbere: gutandukanya ubuziranenge Mosfet urwego rwamashanyarazi

Multimeter izahamagarwa kuri R × 100 ibikoresho, ikaramu itukura ihujwe nigituba cyikirenge, ikaramu yumukara ihujwe nundi muyoboro wamaguru, kugirango ikirenge cya gatatu gikomeze leta ihagaritswe. Niba ubonye urushinge rufite akajagari gato, byerekana ko ikirenge cya gatatu kumarembo. Niba ubonye neza cyane ingaruka zifatika, urashobora kandi kuba hafi yinyeganyeza ya elegitoronike cyangwa gukoraho urutoki bimanitse mumaguru yikirere, gusa ukabona urushinge ruhindagurika, ni ukuvuga, kwerekana ko kumanika mumaguru yikirere ariryo rembo, andi maguru abiri niyo soko n'amazi, kimwe.

Tandukanya impamvu: Kurwanya JFET kwinjiza birenze 100MΩ, kandi transconductance ni ndende cyane, iyo irembo riyobowe, umurima wa magnetiki wo mu nzu biroroshye cyane kumenya ibimenyetso bya voltage ikora kumarembo, kuburyo umuyoboro ugenda kuba hejuru, cyangwa ukunda kuba kuri-off. Niba umubiri wa induction voltage uhita wongerwa kumarembo, kubera ko urufunguzo rwa electromagnetic rwibanze rukomeye, ibintu byavuzwe haruguru bizaba bikomeye. Niba urushinge rwa metero runyerera cyane ibumoso, bivuze ko umuyoboro ukunda kuba hejuru, imiyoboro y'amazi ya RDS iraguka, kandi umubare w'amazi atemba ugabanuka IDS. Ibinyuranye, urushinge rwa metero runyerera cyane iburyo, byerekana ko umuyoboro ukunda guhagarara, RDS iramanuka, IDS ikazamuka. Nyamara, icyerekezo nyacyo aho urushinge rwa metero rwerekejwe rugomba guterwa ninkingi nziza kandi mbi ya voltage yatewe (icyerekezo cyiza gikora voltage cyangwa icyerekezo gikora cyumubyigano) hamwe nigikorwa cyo hagati cyumuyoboro.

Iya kabiri: gutandukanya ubuziranenge ibyiza nibibi bya mosfeti

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, hanyuma urushinge rwa multimeter rufite gutandukana byoroheje. Noneho hindura kuri multimeter R × 1Ω guhagarika, ikaramu itari nziza kumazi (D), ikaramu nziza kumasoko (S), multimeter yaranze agaciro niba ohm nkeya, byerekana ko umubu ari mwiza.