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Bipolar Junction Transistors (BJT)

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Presentation on theme: "Bipolar Junction Transistors (BJT)"— Presentation transcript:

1 Bipolar Junction Transistors (BJT)
Industrial Electronics & Application M.Anand,AP/MCT

2 Bipolar Junction Transistors (BJT)
NPN PNP Industrial Electronics & Application M.Anand,AP/MCT

3 Industrial Electronics & Application
Understanding of BJT Collector Emitter force – voltage/current water flow – current Industrial Electronics & Application M.Anand,AP/MCT

4 Industrial Electronics & Application
BJT Cross-Sections NPN PNP Industrial Electronics & Application M.Anand,AP/MCT

5 Industrial Electronics & Application
BJT configurations Industrial Electronics & Application M.Anand,AP/MCT

6 Common-Emitter NPN Transistor
Reverse bias the CBJ Forward bias the BEJ Industrial Electronics & Application M.Anand,AP/MCT

7 Input Characteristics
Plot IB Vs VBE As VCE increases, more VBE required to turn the BE on so that IB>0. Looks like a PN junction volt-ampere characteristic. Industrial Electronics & Application M.Anand,AP/MCT

8 Output Characteristics
Plot IC Vs VCE Cutoff region (off) both BE and BC reverse biased Active region BE Forward biased BC Reverse biased Saturation region (on) both BE and BC forward biased Industrial Electronics & Application M.Anand,AP/MCT

9 Industrial Electronics & Application
BJTs – Practical Aspects Industrial Electronics & Application M.Anand,AP/MCT

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