Chapter 13 : Bipolar Junction Transistors - PowerPoint PPT Presentation

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Chapter 13 : Bipolar Junction Transistors
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Chapter 13 : Bipolar Junction Transistors

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  1. Chapter 13 : Bipolar Junction Transistors 13-0 Introduction 13-1 Current and voltage relationships 13-2 Common –emitter characteristics 13-3 Load –line analysis 13-4 pnp bipolar junction transistors 13-5 Large signal DC circuit models 13-6 Large signal DC analysis 13-7 Small –signal equivalent circuits 13-8 Common –emitter amplifiers 13-9 Emitter followers

  2. 13-0 Introduction

  3. Fig. 5-1 General structure of npn BJT

  4. Fig. 5-3 Current flow in a npn BJT

  5. 13-1 Current and voltage relationships

  6. Equations of operation

  7. Exercise 13-1

  8. Another example

  9. 13-3 Load-line analysis of a common emitter amplifier

  10. Load- line analysis of the amplifier (cont’d)

  11. Example 13-2 : Load-line analysis of a BJT amplifier

  12. Example 13-2 (cont’d)

  13. Fig. 5-13 Circuit symbols for BJT

  14. Fig. 5-14 . Voltage polarities and current flow of BJT in the active mode

  15. Fig. 5-2 A general structure of pnp BJT

  16. Fig. 5-11 Current flow in a pnp BJT

  17. Fig. 5-5 Large area equivalent circuit models for npn BJT in the active mode

  18. Fig. 5-19 . Early effect

  19. Fig. 5-51 . Hybrid Pi model for small signal operation

  20. Fig. 5-52 . T model for small signal operation

  21. Fig. 5-58 . Hybrid Pi small signal model with r0

  22. Pi and T model with r0

  23. The Widlar Current Mirror (p.653)

  24. Another example