10 © 2016 ANSYS, Inc. August 28, 2018
Conservative vs Non-Conservative Nodes
− A Conservative node can be defined as a node where the input power is identical to the output
power (in other words there is no energy consumption inside the node)
− Looking at the figure below on the left, it is clear that the represented node is conservative, since
i
1
+ i
2
= i
3
and therefore the total power passing through the node is 0: V*i
1
+ V*i
2
– V*i
3
=
= V*(i
1
+ i
2
– i
3
) = 0, where V is the node voltage with respect to the reference node (ground)
i
1
i
2
i
3
V
− A node not fulfilling the above requisite (figure below on the
right) is called Non-Conservative
