We will use this example to introduce the concept of a SUPERNODE
Conventional node analysis
requires all currents at a node
@V_1
@V_2
2 eqs, 3 unknowns...Panic!!
The current through the source is not
related to the voltage of the source
Math solution: add one equation
Efficient solution
: enclose the
source, and all elements in
parallel, inside a surface.
Apply KCL to the surface!!!
The source current is interior
to the surface and is not required
We STILL need one more equation
Only 2 eqs in two unknowns!!!
SUPERNODE
THE SUPERNODE TECHNIQUE