Thevinin vs Norton: What's the Difference?

[Ali Inam]

What is the basic difference between a thevinin equivalent and a norton equivalent ? !

Can we assume that Ith (from the thevinin) and In (from the Norton) are same ? !

 

[n.karthick]

The basic difference is, for the given complex circuit with many elements, in Thevenin terms, we find equivalent voltage Vth and resistance Rth across a point AB ie., the circuit is simplified into a voltage source in series with a resistance connected to AB.
While in Norton terms, we find equivalent current source and parallel resistance across AB. They are just two ways of representing the same thing.
Also note $Ith \neq In$

 

[bassplayer142]

We always joked in school that Norton stole Thevenin's therem by doing a source transformation. :)