Kuwona transistor: anafotokoza sitepe ndi sitepe

Zamgululi

Nthawi ina m'mbuyomu tidasindikiza maphunziro amomwe mungachitire cheke ma capacitors. Tsopano ndi kusintha kwa wina zofunikira pakompyuta, zikuyenda bwanji. Apa mutha kuwona momwe onani transistor anafotokoza mophweka komanso pang'onopang'ono, ndipo mutha kutero ndi zida wamba monga multimeter.

ndi transistors amagwiritsidwa ntchito kwambiri munthawi yama circuits amagetsi ndi magetsi oti muziwongolera ndi chipangizochi. Chifukwa chake, potengera kuchuluka komwe amakhala, mudzakumana ndi milandu yomwe muyenera kuwayang'ana ...

Zomwe ndikufuna?

momwe mungasankhire multimeter, momwe mungagwiritsire ntchito

Ngati muli nawo kale multimeter yabwino, kapena multimeter, ndizo zonse zomwe muyenera kuyesa transistor yanu. Inde, izi Multimeter Iyenera kukhala ndi ntchito yoyesa transistors. Ma multimeter ambiri adijito masiku ano ali ndi izi, ngakhale zotsika mtengo. Ndicho mungathe kuyeza NPN kapena PNP bipolar transistors kuti mudziwe ngati ali ndi vuto.

Ngati ndi choncho, muyenera kuyika zikhomo zitatu za transistor mu socket ya multimeter yomwe ikuwonetsedwa, ndikuyika wosankhayo pa hFE udindo kuyeza phindu. Chifukwa chake mutha kuwerengera ndikuwonanso datasheet ngati likugwirizana ndi zomwe liyenera kupereka.

Masitepe kuti muwone ozungulira bipolar

momwe mungasankhire multimeter

Tsoka ilo, si ma multimeter onse omwe ali ndi mawonekedwe osavutawa, ndi yesani m'njira yowonjezerapo ndi multimeter iliyonse muyenera kuchita mosiyana, ndi kuyesa kwa «Diode».

  1. Chinthu choyamba ndikuchotsa transistor kuchokera kudera kuti muwerenge bwino. Ngati ndi gawo lomwe silinagulitsidwebe, mutha kusunga izi.
  2. Mayeso Base kwa Wopereka:
    1. Lumikizani chitsogozo chofiyira (chofiira) cha multimeter kumunsi (B) kwa transistor, ndipo choipa (chakuda) chitsogolera ku emitter (E) ya transistor.
    2. Ngati ndi transistor ya NPN ili bwino, mita iyenera kuwonetsa kutsika kwamagetsi pakati pa 0.45V ndi 0.9V.
    3. Pankhani ya PNP, oyambitsa OL (Opitilira Malire) ayenera kuwonekera pazenera.
  3. Mayeso Base kwa Wosonkhanitsa:
    1. Lumikizani chitsogozo choyenera kuchokera pa multimeter mpaka kumunsi (B), ndikutsogolera kolakwika kwa wosonkhanitsa (C) wa transistor.
    2. Ngati ndi NPN yomwe ili bwino, iwonetsa kutsika kwamagetsi pakati pa 0.45v ndi 0.9V.
    3. Ngati mukukhala PNP, ndiye OL adzawonekeranso.
  4. Mayeso Wopereka ku Base:
    1. Lumikizani waya woyenera ku emitter (E) ndi waya wolakwika kumunsi (B).
    2. Ngati ndi NPN yoyenda bwino iwonetsa OL nthawi ino.
    3. Pankhani ya PNP, dontho la 0.45v ndi 0.9V lidzawonetsedwa.
  5. Mayeso Wosonkhanitsa ku Base:
    1. Gwirizanitsani zabwino za multimeter kwa wosonkhanitsa (C) ndi zolakwika kumunsi (B) wa transistor.
    2. Ngati ndi NPN, iyenera kuwonekera pazenera la OL kuwonetsa kuti zili bwino.
    3. Pankhani ya PNP, dontho liyeneranso kukhala 0.45V ndi 0.9V ngati zili bwino.
  6. Mayeso Wosonkhanitsa kwa Emitter:
    1. Lumikizani waya wofiira kwa wokhometsa (C) ndi waya wakuda kupita ku emitter (E).
    2. Kaya ndi NPN kapena PNP ili bwino, iwonetsa OL pazenera.
    3. Ngati mutembenuza mawaya, zabwino pa emitter ndi zoyipa kwa osonkhanitsa, onse ku PNP ndi NPN, iyeneranso kuwerenga OL.

Chilichonse muyeso wosiyana za izo, ngati zachitika molondola, ziwonetsa kuti transistor ndiyoyipa. Muyeneranso kuganizira china chake, ndikuti mayesowa amangodziwa ngati transistor ali ndi gawo lalifupi kapena ali otseguka, koma osati mavuto ena. Chifukwa chake, ngakhale iwadutsa, transistor atha kukhala ndi vuto lina lomwe limalepheretsa kugwira bwino ntchito.

Zolemba za FET

Pankhani yokhala a Zolemba za FET, osati bipolar imodzi, ndiye muyenera kutsatira izi ndi digito kapena analogi yanu yamagetsi:

  1. Ikani multimeter yanu pakuyesa diode, monga kale. Kenako ikani kafukufuku wakuda (-) pa Drain terminal, ndi red (+) kafukufuku pa Source source. Zotsatira zake zikuyenera kuwerengedwa kwa 513mv kapena zina, kutengera mtundu wa FET. Ngati kuwerenga sikunapezeke, kudzakhala kotseguka ndipo ngati kuli kotsika kwambiri kumakhala kofupikitsa.
  2. Popanda kuchotsa nsonga yakuda pa ngalande, ikani nsonga yofiira pamalo otsekera a Chipata. Tsopano mayeso sayenera kubwereranso kuwerenga kulikonse. Ngati ziwonetsa zotsatira pazenera, padzakhala kutuluka kapena kufupikitsa.
  3. Ikani nsonga mu kasupe, ndipo yakuda idzatsala mumtsinjewo. Izi ziyesa mphambano ya Drain-Source poyiyambitsa ndikupeza kuwerenga kotsika pafupifupi 0.82v. Kuti atsegule transistor, malo ake atatu (DGS) ayenera kufupikitsidwa, ndipo abwerera kuchokera ku boma kupita kumalo osagwira ntchito.

Ndi izi, mutha kuyesa ma transistors amtundu wa FET, ngati MOSFET. Kumbukirani kukhala ndi luso kapena ma database Mwa izi kuti mudziwe ngati zomwe mumapeza ndizokwanira, chifukwa zimasiyanasiyana kutengera mtundu wa transistor ...


Zomwe zili m'nkhaniyi zikutsatira mfundo zathu za malamulo okonzekera. Kuti mufotokoze cholakwika dinani Apa.

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