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Chapter 17 Two-Port Networks

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1 Chapter 17 Two-Port Networks
Copyright © 2013 The McGraw-Hill Companies, Inc. Permission required for reproduction or display.

2 One-Port and Two-Port Networks
In a one-port network, ia=ib In a two-port network, ia=ib and ic=id but only if the connections are made port-to-port. Copyright © 2013 The McGraw-Hill Companies, Inc. Permission required for reproduction or display.

3 Input Impedance An N mesh passive network
Copyright © 2013 The McGraw-Hill Companies, Inc. Permission required for reproduction or display.

4 Example: Input Impedance
Show that the input impedance is Ω. Copyright © 2013 The McGraw-Hill Companies, Inc. Permission required for reproduction or display.

5 Admittance Parameters
Copyright © 2013 The McGraw-Hill Companies, Inc. Permission required for reproduction or display.

6 Example: Admittance Parameters
Find the admittance parameters. Answer: Copyright © 2013 The McGraw-Hill Companies, Inc. Permission required for reproduction or display.

7 Parallel Two-Port Networks
y = yA + yB Copyright © 2013 The McGraw-Hill Companies, Inc. Permission required for reproduction or display.

8 Impedance Parameters Copyright © 2013 The McGraw-Hill Companies, Inc. Permission required for reproduction or display.

9 Series Two-Port Networks
z = zA + zB Copyright © 2013 The McGraw-Hill Companies, Inc. Permission required for reproduction or display.

10 Hybrid Parameters Copyright © 2013 The McGraw-Hill Companies, Inc. Permission required for reproduction or display.

11 Example: Hybrid Parameters
Copyright © 2013 The McGraw-Hill Companies, Inc. Permission required for reproduction or display.

12 Transmission (ABCD) Parameters
Copyright © 2013 The McGraw-Hill Companies, Inc. Permission required for reproduction or display.

13 Cascaded Two-Port Networks
t = tA tB Copyright © 2013 The McGraw-Hill Companies, Inc. Permission required for reproduction or display.

14 Example: Cascaded Networks
Show that the ABCD parameters for the cascade of network A and network B are: Copyright © 2013 The McGraw-Hill Companies, Inc. Permission required for reproduction or display.


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