Lecture 6 Nodal Analysis Section 4.1-4.4 Jack Ou, Ph.D.

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Presentation transcript:

Lecture 6 Nodal Analysis Section Jack Ou, Ph.D.

Definitions

Nodes

Branch

Essential Node

Step 1: Number of Nodal Voltage Equations n e is essential nodes Number of nodal voltage Equations is n e -1 n e is 3 2 nodal voltage equations are required.

Step 2: Designate a node as the reference node. Suggestion: Select the node with the most branches.

Step 3: Define the Node Voltage on the Diagram

Step 4: Apply KCL Sum Currents Away from Essential Node

Example 4.2

Example 4.3

Supernode When a voltage source is between two essential nodes, we can combine these nodes to form a supernode.