Source Transformation on AC Analysis

The source transformation in ac analysis involves transforming a voltage source in series with an impedance to a current source in parallel with an impedance.


where:

Vs = Zs Is       <--->      Is = Vs / Zs


as a recall to the dc analysis :

 DC Source transformation Source transformation is the process of replacing a voltage source vs in series with a resistor R by a current source is in parallel with a resistor R, or vice versa.

but in AC Source transformation A voltage source with impedance Z in series is the same as a current source with an impedance Z in parallel.

Here are some examples of source transformation solving in dc analysis( note that they are the same on solving in ac analysis):

Insight Learnings:

In dc analysis:

Source transformation is the process of replacing a voltage source vs in series with a resistor R by a current source is in parallel with a resistor R, or vice versa.

In ac analysis:

A voltage source with impedance Z in series is the same as a current source with an impedance Z in parallel.

Transform a voltage source in series with an impedance to a current source in     parallel with an impedance for simplification or vice versa.