Source transformation

Source transformation is the process of simplifying a circuit solution, especially with mixed sources, by transforming voltage sources into current sources, and vice versa, using Thévenin's theorem and Norton's theorem respectively.

Source transformation is the process of simplifying a circuit solution, especially with mixed sources, by transforming voltage sources into current sources, and vice versa, using Thévenin's theorem and Norton's theorem respectively. Source transformations are used to exploit the equivalence of a real current source and a real voltage source, such as a battery. Application of Thévenin's theorem and Norton's theorem gives the quantities associated with the equivalence. Specifically, given a real current source, which is an ideal current source I in parallel with an impedance Z , applying a source transformation gives an equivalent real voltage source, which is an ideal voltage source in series with the impedance. The impedance Z retains its value and the new voltage source V has value equal to the ideal current source's value times the impedance, according to Ohm's law V=I \, Z . In the same way, an ideal voltage source in series with an impedance can be transformed into an ideal current source in parallel with the same impedance, where the new ideal current source has value I = V/Z . V = I\cdot Z, \qquad I = \cfrac VZ ==References==

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