What is supernode and Supermesh?

The problem arises when the current source (independent or dependent) exists between two meshes. So, then to solve the circuit a supermesh is created by excluding the current source and any elements connected in series with it. Nodal analysis and supernode: In nodal analysis we use KCL.

What is the difference between node and supernode?

Properties of Supernode Always the difference between the voltage of two non reference nodes is known at Supernode. A supernode requires application of both KCL and KVL to solve it. A Supernode satisfies the KCL as like a simple node.

What is super mesh current?

A supermesh occurs when a current source is contained between two essential meshes. This will be an equation where the current source is equal to one of the mesh currents minus the other.

Can you have 2 supernodes?

1 Answer. Don’t get thrown off by having multiple voltage sources attached to the same node: just follow the super-node procedure, and recognize that it’s ok to combine a super-node with another node/super-node to make a “super-super-node” (or just a bigger super-node).

How do I know if I have a super node?

The supernode is indicated by the region enclosed by the dotted line. This is possible because, if the total current leaving Node2 is zero (0) and the total current leaving Node3 is zero (0), the the total current leaving the combination is zero.

How do I know if I have super nodes?

Each supernode contains two nodes, one non-reference node and another node that may be a second non-reference node or the reference node. Supernodes containing the reference node have one node voltage variable. For nodal analysis, the supernode construct is only required between two non-reference nodes.

What is super mesh?

A supermesh occurs when a current source is contained between two essential meshes. The circuit is first treated as if the current source is not there. This leads to one equation that incorporates two mesh currents.

Why Super Mesh has no current of its own?

Because mesh analysis applies KVL – which requires that we know the voltage across each branch – and we do not know the voltage across the current source in advance. The current source in the supermesh provides the constraint equation necessary to solve for the mesh currents. A supermesh has no current of its own.

What is the reason for us to use either Super node or super mesh in the analysis?

Usually you use “super mesh” analysis when there are current sources — dependent or independent — in the circuit, and still you want to use Kirchhoff voltage law (KVL) to analyze the circuit.