Waxaa jira laba siyaabood oo lagu kala saaro Mosfet faa'iidooyinka iyo khasaaraha.
Midka koowaad: si tayo leh u kala saar isgoyska Mosfet heerka korantada
Multimeter waxa lagu wici doonaa gear R × 100, qalinka cas si aan kala sooc lahayn ayaa loogu xidhay tuubada cagta, qalinka madaw waxa uu ku xidhan yahay tuubo cag kale ah, si ay lugta saddexaad u ilaaliso xaalada la hakiyay. Haddii aad aragto in irbaddu leedahay jitter yar, waxay caddaynaysaa in cagta saddexaad ee albaabka. Haddii aad hesho indho-indheyn badan oo cad oo ku saabsan saameynta dhabta ah, waxaad sidoo kale u dhowaan kartaa gariir elektaroonik ah ama taabashada farta ee cagaha hawada, kaliya si aad u aragto leexinta irbadda, taas oo muujinaysa in cagaha hawadu ay tahay albaabka, labada cagood ee kale waa isha iyo biyo-mareenka, siday u kala horreeyaan.
Kala saar sababta: caabbinta gelinta JFET waa in ka badan 100MΩ, transconductancena aad ayuu u sarreeyaa, marka albaabka la hoggaamiyo, goobta gudaha gudaha ee magnetic waa mid aad u fudud in la ogaado calaamadda xogta korantada ee shaqada ee albaabka, si ay dhuumaha u janjeeraan noqon ilaa, ama u janjeera in ay off-off. Haddii korantada induction ee jirka isla markiiba lagu daro albaabka, sababtoo ah faragelinta muhiimka ah ee korantada waa mid xooggan, xaaladda kor ku xusan waxay noqon doontaa mid aad u muhiim ah. Haddii cirbadda mitirku ay si fiican ugu leexato dhanka bidix, waxay la macno tahay in dhuumaha ay u janjeeraan ilaa, iska caabiyaha isha bullaacadaha ee RDS wuu balaadhayaa, iyo qadarka isha qulqulka ee hadda waxay yaraynaysaa IDS. Taa beddelkeeda, cirbadda mitirku waxay si xooggan ugu leexataa dhanka midig, taas oo muujinaysa in dhuumaha ay u janjeeraan inay dammaan, RDS hoos bay u dhacaysaa, IDSna kor ayay u kacaysaa. Si kastaba ha ahaatee, jihada saxda ah ee cirbadda mitirku u leexanayso waa inay ku xidhan tahay tiirarka togan iyo kuwa taban ee danabka la kiciyay (jihada wanaagsan ee danabka shaqada ama jihada shaqada ee jihada) iyo barta dhexe ee shaqada ee dhuumaha.
Midda labaad: si tayo leh u kala saar faa'iidooyinka iyo khasaaraha mosfet
Marka hore isticmaal multimeter-ka R × 10kΩ block (ku-xidhan 9V ama 15V baytari dib loo dalacsan karo), qalinka taban (madow) ee ku xidhan albaabka (G), qalinka togan (cas) ee ku xidhan isha (S). Xagga iridda, isha laga helo batteriga dhexe, ka dibna cirbadda multimeterku waxay leedahay leexasho khafiif ah. Kadibna u beddel multimeter-ka R × 1Ω block, qalinka taban ee biya-mareenka (D), qalinka togan ee isha (S), multimeterka qiimaha calaamadeysan haddii dhowr ohm ah, waxay muujineysaa in mosfet uu wanaagsan yahay.
Waqtiga boostada: Sebtembar-01-2023
