1. The Bipolar Junction Transistor
Chapter Three
The Bipolar Junction Transistor

5. Figure 3.10
Common-emitter circuits: (a) with an npn transistor, (b) with a pnp transistor, and (c) with a pnp transistor biased with a positive voltage source

6. Figure 3.13
Transistor current-voltage characteristics of the common-emitter circuit

7. Figure 3.18
(a) Common-emitter circuit with an npn transistor and (b) dc equivalent circuit, with piecewise linear parameters

8. Figure 3.19
Circuit for Example 3.3

9. Figure 3.21
Circuit for Example 3.4

10. Figure 3.22
(a) base-emitter junction characteristics and the input load line and (b) common- emitter transistor characteristics and the collector-emitter load line

11. Figure 3.23
Circuit for Example 3.5

13. Figure 3.26
Circuit for Example 3.6

14. Figure 3.33
Circuit for Example 3.8

15. Figure 3.44
(a) A bipolar inverter used as an amplifier; (b) the inverter voltage transfer characteristics

16. Figure 3.45
(a) The inverter circuit with both a dc and an ac input signal; (b) the dc voltage transfer characteristics, Q-point, and sinusoidal input and output signals; (c) the transfer characteristics showing improper dc biasing

17. Figure 3.53
(a) A common-emitter circuit with an emitter resistor and voltage divider bias circuit in the base; (b) the dc circuit with a Thevenin equivalent base circuit

18. Chapter Four
Basic BJT Amplifiers

19. Figure 4.2
(a) Bipolar transistor inverter circuit; (b) inverter transfer characteristics

20. Figure 4.4
Common-emitter transistor characteristics, dc load line, and sinusoidal variation in base current, collector current, and collector-emitter voltage

21. Figure 4.5
Base current versus base-emitter voltage characteristic with superimposed sinusoidal signals

22. Figure 4.8
A simplified small-signal hybrid- equivalent circuit for the npn transistor

24. Figure 4.13
Expanded small-signal model of the BJT, including the Early effect, for the case when the circuit contains the (a) transconductance and (b) the current gain parameters

25. Figure 4.22a
Basic data sheet for the 2N2222 bipolar transistor

26. Figure 4.22b

27. Figure 4.28
A bipolar circuit with an emitter resistor, a voltage-divider biasing circuit, and a coupling capacitor

28. Figure 4.29
The small-signal equivalent circuit with an emitter resistor

29. Figure 4.44
Emitter-follower circuit

30. Figure 4.45
Small-signal equivalent circuit of the emitter-follower

31. Figure 4.53
Basic common-base circuit

32. Figure 4.54
(a) Simplified hybrid- model of the npn transistor and (b) small-signal equivalent circuit of the common-base circuit