Supernode (circuit)

For other uses, see Supernode.
In this circuit, both VA and VB are supernodes. VA has two unreferenced nodes, whereas VB has one referenced node (ground) and one unreferenced node.

In circuit theory, a supernode is a theoretical construct that can be used to solve a circuit. This is done by viewing a voltage source on a wire as a point source voltage in relation to other point voltages located at various nodes in the circuit, relative to a ground node assigned a zero or negative charge. A supernode exists when an ideal voltage source appears between any two nodes of an electric circuit.[1]

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.[2]

Nodal analysis

It is related to Kirchhoff's current law which states that the total or algebraic sum of currents meeting at a junction or node is zero. Every junction where two or more branches meet is a node. One of the nodes in the network is taken as reference node. If there are n nodes in any network, the number of simultaneous equation to be solved will be (n-1).

See also

References

  1. ^ engineer (2015-08-27). "Define Super node? | Electrical Circuits VIVA Questions 2023". FAQs Interview Questions. Retrieved 2023-07-03.
  2. ^ Roxborough, Tom; Sen, Arunabha (2005). Graph Clustering Using Multiway Ratio Cut (Software Demonstration). Springer Berlin Heidelberg. Graph Drawing. pp. 291–296.
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