1.Ihuza MOSFET iranga pin
Irembo ryaBYINSHI ni ishingiro rya transistor, kandi imiyoboro ninkomoko nibyo gukusanya no gusohora kwatransistor ihuye. Multimeter kugeza kuri R × 1k ibikoresho, hamwe namakaramu abiri yo gupima imbere no guhinduranya guhangana hagati yibi bipapuro byombi. Iyo bibiri-pin imbere birwanya = reversion resistance = KΩ, ni ukuvuga, pin ebyiri zinkomoko S na drain D, ahasigaye pin ni irembo G. Niba ari 4-pinihuriro MOSFET, indi nkingi ni ugukoresha ingabo ikingira.
2.Menya irembo
Hamwe n'ikaramu y'umukara ya multimeter kugirango ikore MOSFET electrode idasanzwe, ikaramu itukura kugirango ikore kuri electrode ebyiri. Niba ibipimo byombi byapimwe ari bito, byerekana ko byombi ari ibintu byiza birwanya, umuyoboro ni uw'umuyoboro wa N-MOSFET, guhuza ikaramu imwe y'umukara nabyo ni irembo.
Igikorwa cyo kubyaza umusaruro cyemeje ko imiyoboro ninkomoko ya MOSFET ihuriweho, kandi ishobora guhanahana amakuru, kandi ntibizagira ingaruka kumikoreshereze yumuzunguruko, umuzenguruko nawo ni ibisanzwe muriki gihe, bityo rero nta mpamvu yo kugenda gutandukanya cyane. Kurwanya imiyoboro n'amasoko ni hafi ibihumbi bike. Ntushobora gukoresha ubu buryo kugirango umenye irembo ryubwoko bwinjiriro bwanditse MOSFET. Kuberako kurwanya kwinjizwa kwiyi MOSFET ari hejuru cyane, kandi ubushobozi bwa inter-polar hagati y irembo nisoko ni bito cyane, gupima bike nkamafaranga make, birashobora gushirwaho hejuru ya polar. ubushobozi bwa voltage ndende cyane, MOSFET izoroha cyane kwangiza.
3.Gusuzuma ubushobozi bwa amplification ya MOSFETs
Iyo multimeter yashizwe kuri R × 100, koresha ikaramu itukura kugirango uhuze isoko S, hanyuma ukoreshe ikaramu yumukara kugirango uhuze imiyoboro D, ni nko kongeramo 1.5V voltage kuri MOSFET. Muri iki gihe, urushinge rwerekana agaciro ko guhangana hagati ya DS pole. Muri iki gihe ukoresheje urutoki rwo gukomanga irembo G, imbaraga z'umubiri zatewe n'umubiri nk'ikimenyetso cyo kwinjira ku irembo. Kubera uruhare rwa MOSFET amplification, ID na UDS bizahinduka, bivuze ko kurwanya hagati ya DS pole byahindutse, dushobora kureba ko urushinge rufite amplitude manini ya swing. Niba ukuboko gukubise irembo, swing y'urushinge ni nto cyane, ni ukuvuga, ubushobozi bwa MOSFET bwo kongera imbaraga ni ntege nke; niba urushinge rudafite ibikorwa byoroheje, byerekana ko MOSFET yangiritse.
Igihe cyoherejwe: Nyakanga-18-2024
