This states that any linear bilateral circuit can be replaced
by a circuit consisting of a single voltage source in series with
a single resistor.
The applet above shows a circuit(black) and its thevenin equivalent(red)
If a resistor R is connected to either circuit at the terminals AB
then the current through R and the voltage across it is always the
same for both circuits. As far as behaviour at the terminals is concerned,
the 2 circuits are equivalent.
For nonlinear circuits a linearised equivalent must be obtained
about the operating point.
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COPYRIGHT © 1996 Cuthbert A. Nyack.