Nodal Analysis

 

Nodal Analysis

1. Nodal analysis can be applied for the planner and non-planner networks

2. Nodal analysis is based on the application of KCL

Note: 

1. A principle node is a point where more than two branches are connected.

2. A simple node is a point where two branches are connected.

The procedure of nodal analysis:

Step 1: Identify the total no. of principle nodes

Step 2: Assign voltages to each principle node and take one of the nodes as a reference node

Step 3: Develop KCL equations for each node(except for reference node)

Step 4: Solve the KCL equations to get node voltages

A special case of nodal analysis(Supernode)

A supernode exists in a circuit when two non-reference nodes separated by a pure voltage source

The procedure of super nodal analysis:

Step 1: Identify the total no. of principle nodes

Step 2: Assign voltages to each principle node and take one of the nodes as a reference node

Step 3: If super node found, then develop KCL equation for supernode and remaining reference nodes

Step 4: Develop KVL equation for supernode

Step 5: Solve KVL and KCL equations to get node voltages