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Source Transformation

Transformation of several voltage (or current) sources into a single voltage (or current) source and a voltage source into a current source or vice-versa is known as source transformation. This makes circuit analysis easier.
There are some rules of source transformation.
Rule (1) Several voltage sources {V1(t), V2(t), …, Vn(t)} connected in series will be replaced by a single voltage source of value V = V1(t) + V2(t) + …+ Vn(t).
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Source transformation technique: Rule (1)
Rule (2) A number of voltage sources V1(t), V2(t), …, Vn(t) in parallel will result in a single voltage source, V(t) = V1(t) = V2(t) = … =Vn(t).
Description: 2014.png
Source transformation technique: Rule (2)
Rule (3) As far as the computations in the remainder of the network are concerned, a resistor in parallel with an ideal voltage source and a resistor in series with an ideal current source may be ignored.
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Source transformation technique: Rule (3)
Rule (4) A voltage source V(t) in series with a resistor R can be converted into a current source I(t) in parallel with the same resistor R, where, I(t) = Description: 3390.png.
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Source transformation technique: Rule (4)

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