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Series and Parallel Networks

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ET 162 Circuit Analysis Series and Parallel Networks Electrical and Telecommunication Engineering Technology Professor Jang Acknowledgement OUTLINES Series-Parallel ... – PowerPoint PPT presentation

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Title: Series and Parallel Networks

1
Series and Parallel Networks
ET 162 Circuit Analysis
Electrical and Telecommunication Engineering
Technology Professor Jang
2
Acknowledgement
I want to express my gratitude to Prentice Hall
giving me the permission to use instructors
material for developing this module. I would like
to thank the Department of Electrical and
Telecommunications Engineering Technology of
NYCCT for giving me support to commence and
complete this module. I hope this module is
performance.
3
OUTLINES
• Introduction to Series-Parallel Networks
• Reduce and Return Approach
• Block Diagram Approach
• Descriptive Examples

Key Words Series-Parallel Network, Block
ET162 Circuit Analysis Series and Parallel
4
Series-Parallel Networks Reduce and Return
Approach
Series-parallel networks are networks that
contain both series and parallel circuit
configurations
For many single-source, series-parallel networks,
the analysis is one that works back to the
source, determines the source current, and then
finds its way to the desired unknown.
FIGURE 7.1 Introducing the reduce and return
approach.
ET162 Circuit Analysis Series and parallel
5
Series-Parallel NetworksBlock Diagram Approach
The block diagram approach will be employed
throughout to emphasize the fact that
combinations of elements, not simply single
resistive elements, can be in series or parallel.
FIGURE 7.2 Introducing the block diagram approach.
ET162 Circuit Analysis Series and parallel
6
Ex. 7-1 If each block of Fig.7.3 were a single
resistive element, the network of Fig. 7.4 might
result.
FIGURE 7.4
FIGURE 7.3
ET162 Circuit Analysis Series and parallel
7
Ex. 7-2 It is also possible that the blocks A, B,
and C of Fig. 7.2 contain the elements and
configurations in Fig. 7.5. Working with each
region
FIGURE 7.5
FIGURE 7.6
8
FIGURE 7.6
ET162 Circuit Analysis Series and parallel
9
Ex. 7-3 Another possible variation of Fig. 7.2
appears in Fig. 7.7.
FIGURE 7.7
FIGURE 7.8
ET162 Circuit Analysis Series and parallel
networks 8
10
(No Transcript)
11
Series-Parallel Networks - Descriptive Examples
Ex. 7-4 Find the current I4 and the voltage V2
for the network of Fig. 7.2 .
FIGURE 7.9
FIGURE 7.10
FIGURE 7.11
ET162 Circuit Analysis Series and parallel
12
Ex. 7-5 Find the indicated currents and the
voltages for the network of Fig. 7.12 .
FIGURE 7.12
FIGURE 7.13
ET162 Circuit Analysis Series and parallel
13
FIGURE 7.13
ET162 Circuit Analysis Series and parallel
14
Ex. 7-6 a. Find the voltages V1, V2, and Vab for
the network of Fig. 7.14. b. Calculate the
source current Is.
FIGURE 7.14
FIGURE 7.15
a.
ET162 Circuit Analysis Series and parallel
15
b.
Applying Kirchhoffs current law, Is I1 I3
1.5A 1.5A 3A
ET162 Circuit Analysis Series and parallel
16
Ex. 7-7 For the network of Fig. 7.16, determine
the voltages V1 and V2 and current I.
FIGURE 7.17
FIGURE 7.16
V2 E1 6V Applying KVL to the loop E1
V1 E2 0 V1 E2 E1 18V 6V 24V
ET162 Circuit Analysis Series and parallel
17
Ex. 7-9 Calculate the indicated currents and
voltage of Fig.7.17.
FIGURE 7.17.
9 kO
Is I5 I6 3 mA 4.35 mA 7.35 mA
ET162 Circuit Analysis Series and parallel
18
Ex. 7-10 This example demonstrates the power of
Kirchhoffs voltage law by determining the
voltages V1, V2, and V3 for the network of
Fig.7.18.
FIGURE 7.17.
FIGURE 7.18.
ET162 Circuit Analysis Series and parallel
19