transistors. types of transistors pnp transistors npn transistors field effect transistor ( f.e.t )...
TRANSCRIPT
![Page 1: TRANSISTORS. TYPES OF TRANSISTORS PNP TRANSISTORS NPN TRANSISTORS FIELD EFFECT TRANSISTOR ( F.E.T ) UNI JUNCTION TRANSISTOR ( U.J.T ) SILICON CONTROLLED](https://reader036.vdocument.in/reader036/viewer/2022082712/56649dff5503460f94ae7483/html5/thumbnails/1.jpg)
TRANSISTORS
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TYPES OF TRANSISTORS
• PNP TRANSISTORS• NPN TRANSISTORS• FIELD EFFECT TRANSISTOR ( F.E.T )• UNI JUNCTION TRANSISTOR ( U.J.T )• SILICON CONTROLLED RACTIFIER ( S.C.R )
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CONSTRUCTION TRANISTOR IS A CONNECTION OF TWO DIODES.•PNP TRANSISTOR :- N TYPE SEMI CONDUCTOR SANDWICH BETWEEN TWO P TYPE SEMI CONDUCTORS.•NPN TRANSISTOR :- P TYPE SEMI CONDUCTOR SANDWICH BETWEEN TWO NTYPE SEMI CONDUCTORS.• PNP & NPN TRANSISTOR HAS THREE TERMINAL
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• TERMINALS NAME ARE EMITTER, BASE & COLLECTOR
• PNP & NPN TRANSISTOR ARE BIPOLAR TRANSISTORS (BJT)
• TRANSISTOR IS SEMI CONDUCTOR DEVICE• TRANSISTOR MAKE FROM SILICON & GERANIUM
SEMI CONDUCTOR MATERIAL
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FIELD EFFECT TRANSISTOR
• F.E.T HAS THREE TERMINALS• THESE TERMINAL KNOWN AS GATE,DRAIN &
SOURCE.• F.E.T IS UNI POLAR TRANSISTOR
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UNI JUNCTION TRANSISTOR
• UJT HAS THREE TERMINALS• THESE TERMINAL KNOWN AS BASE 1, BASE 2 &
EMITTER• U.J.T IS UNI POLAR TRANSISTOR
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SILICON CONTROLLED RACTIFIER
• S.C.R HAS THREE TERMINALS• THESE TERMINAL KNOWN AS ANODE, CATHODE
& GATE• S.C.R IS UNI POLAR TRANSISTOR.
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WORKING OF TRANSISTOR
• PNP & NPN TRANSISTOR HAS TWO JUNCTION, EMITTER BASE JUNCTION & COLLECTOR BASE JUNCTION
• F.E.T,S.C.R,U.J.T HAS ONE JUNCTION CURRENT FLOW IN FROM ONE JUNCTION & DIRECTION
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APPLICATION OF TRANSISTOR
• AMPLIFIER• SWITCH• CONTROLLED PROCESS