Nodal Voltage Method - online masters in information technology

Tuesday, 13 February 2018

Nodal Voltage Method

In nodal method, KCL is applied to a network.

Node is defined as junction (or) joining point of two or more component terminals,

In nodal method, select one node as a reference -node, with respected to which the voltage at all other node are node are measured. Thus the reference node acts a ground or common for the circuits.

In nodal method, select one node as a reference -node, with respect to which the voltage at all other node are measured. Thus the reference node acts as ground or command for the circuits.

step:1-  First, convert, all the voltage source to current source.
step:2-  The conduction of all branch connect to node 1 are added and denoted by G11 . It is called mutual conductance of node.
step:3-  All the conductance of node 1 and 2 are added and denoted by G12. It is called mutual conducted of node 1 and 2. This is written with negative sign. If no conductance is connected between node 1 and 2 then G12= 0, G12=G12.
step:4-  denotes the value of the current source current to node 1 and is written on the right hand side of the equation. The sign I1 is position if  it is flowing  toward node I1, otherwise it is negative it is negative . It no current source is connected to node 1, then I1 =0.


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