Source Transformation

The Source transformation of a circuit is the transformation of a power source from a voltage source to a current source, or a current source to a voltage source.
In other words, we transform the power source from either voltage to current, or current to voltage.

Voltage Source Transformation

We will first go over voltage source transformation, the transformation of a circuit with a voltage source to the equivalent circuit with a current source.

In order to get a visual example of this, let's take the circuit below which has a voltage source as its power source:

Using source transformation, we can change or transform this above circuit with a voltage power source and a resistor, R, in series, into the equivalent circuit with a current source with a resistor, R, in parallel, as shown below:

We transform a voltage source into a current source by using ohm's law. A voltage source can be changed into a current source by using ohm's formula,I=V/R.

Learnings:

Source transformation is a good way of solving a circuit as well. However it is not that space friendly because you have to draw a lot of equivalent circuits to simplify extremely your circuit. Also it takes time, but using other solutions still takes up time so if this is easier, we will use it instead.