In the previous lesson we have, we talked about Nodal Analysis without Voltage Source. Now we will discuss Nodal Analysis with Voltage Source. We will still use the same process in solving the nodal analysis without voltage source but now we will have two cases to consider.
Case One:
A voltage source is connected between a reference node and a non-reference node. Set the voltage at the non-reference node equal to the voltage source.
Case Two:
A voltage source connected between two non-reference node. The two non-reference node form a supernode; apply KCL and KVL to determine the node voltages.
Supernode - is formed by enclosing a dependent or independent voltage source connected between two non-reference nodes and any elements connected parallel with it.
Supernode has its properties:
1. The voltage source inside the supernode provides a constraint equation needed to solve for the node voltages.
2. A supernode has no voltage of its own.
3. A supernode requires the application of both KCL and KVL.
Let us try to solve some examples.
(more examples? soon...)