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Lecture16 - Chapter 4

# Lecture16 - Chapter 4 - EE216 C ircuit Analysis I Le cture...

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1 EE216 Circuit Analysis I Lecture # 16 – Chapter 4

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2 Node Voltage Analysis – Review 1/2 Proceed in a systemic manner: Define all essential nodes ( n e ) and label them (e.g. N 1 , N 2 , etc.) One essential node having the maximum number of branches and/or the most voltage sources connected to it is selected as the reference node . Assign voltages at all essential nodes (e.g. V 1 , V 2 , etc.). These are with respect to the reference node. At each node, assume it is the most positive as compared to all other nodes and that all currents leave that node.
3 Node Voltage Analysis – Review 2/2 Number of KCL equations is n e – 1 (reference node is skipped). Solve equations simultaneously to find the voltages at every node. Once these voltages are known, the currents can be found by using Ohm’s law .

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4 Nodal Analysis – Dependant Source Example 1 0 5 20 2 20 2 1 1 1 = - + + - V V V V 0 5 10 2 8 1 2 2 2 = - + + - V V V i V φ 1 node 2 node Two equations – two unknowns. Simultaneous solution can yield the result.
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Lecture16 - Chapter 4 - EE216 C ircuit Analysis I Le cture...

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