1. 3-1 McGraw-Hill Copyright © 2001 by the McGraw-Hill Companies, Inc. All rights reserved. Chapter Three The Bipolar Junction Transistor

2. 3-2 McGraw-Hill Copyright © 2001 by the McGraw-Hill Companies, Inc. All rights reserved. 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

3. 3-3 McGraw-Hill Copyright © 2001 by the McGraw-Hill Companies, Inc. All rights reserved. Figure 3.13 Transistor current-voltage characteristics of the common-emitter circuit

4. 3-4 McGraw-Hill Copyright © 2001 by the McGraw-Hill Companies, Inc. All rights reserved. Figure 3.18 (a) Common-emitter circuit with an npn transistor and (b) dc equivalent circuit, with piecewise linear parameters

5. 3-5 McGraw-Hill Copyright © 2001 by the McGraw-Hill Companies, Inc. All rights reserved. Figure 3.19 Circuit for Example 3.3

6. 3-6 McGraw-Hill Copyright © 2001 by the McGraw-Hill Companies, Inc. All rights reserved. Figure 3.21 Circuit for Example 3.4

7. 3-7 McGraw-Hill Copyright © 2001 by the McGraw-Hill Companies, Inc. All rights reserved. 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

8. 3-8 McGraw-Hill Copyright © 2001 by the McGraw-Hill Companies, Inc. All rights reserved. Figure 3.23 Circuit for Example 3.5

9. 3-9 McGraw-Hill Copyright © 2001 by the McGraw-Hill Companies, Inc. All rights reserved.

10. 3-10 McGraw-Hill Copyright © 2001 by the McGraw-Hill Companies, Inc. All rights reserved. Figure 3.26 Circuit for Example 3.6

11. 3-11 McGraw-Hill Copyright © 2001 by the McGraw-Hill Companies, Inc. All rights reserved. Figure 3.33 Circuit for Example 3.8

12. 3-12 McGraw-Hill Copyright © 2001 by the McGraw-Hill Companies, Inc. All rights reserved. Figure 3.44 (a) A bipolar inverter used as an amplifier; (b) the inverter voltage transfer characteristics

13. 3-13 McGraw-Hill Copyright © 2001 by the McGraw-Hill Companies, Inc. All rights reserved. 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

14. 3-14 McGraw-Hill Copyright © 2001 by the McGraw-Hill Companies, Inc. All rights reserved. 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