Lecture13 - Chapter 4

# Lecture13 - Chapter 4 - one less than the number of...

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1 EE216 Circuit Analysis I Lecture # 13 – Chapter 4

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2 Early Circuit Analysis
3 Node-Voltage Analysis 1/2 This method uses the voltage drops to specify the currents at essential nodes Node equations of currents are written to satisfy Kirchhoff’s Current Law The node equations are solved to calculate the unknown voltages Thereafter, any circuit unknown may be determined

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4 Node-Voltage Analysis 2 /2 In a circuit one essential node must be used as a reference node for specifying the voltage at all other nodes Reference node is usually the essential node connecting the maximum number of branches Generally, the number of current equations required to solve a circuit is

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Unformatted text preview: one less than the number of principal or essential nodes 5 Node-Voltage Analysis Example 1 • Essential Nodes = 2 • Equations Required = 1 • Reference node = Y • All currents assumed to be flowing away from node X R 1 = 12 Ω R 3 = 6 Ω R 2 = 3 Ω Y X 84 V 21 V 6 Node-Voltage Analysis Example 1 3 ) 21 ( V 6 V 12 ) 84 ( V X X X =--+ +--( 29 ) 21 ( V 4 V 2 ) 84 ( V X X X =--+ +--168 V 7 X = + V 24 V X-= A 5 12 ) 84 ( V I X 1 =--= A V I X 4 6 3-= = A V I X 1 3 ) 21 ( 2-=--= R 1 = 12 Ω R 3 = 6 Ω R 2 = 3 Ω Y X 84 V 21 V...
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## This note was uploaded on 01/21/2011 for the course EE 216 taught by Professor Azharruaf during the Spring '10 term at NUCES.

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Lecture13 - Chapter 4 - one less than the number of...

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