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The process of converting from one source to another is called source transformation. A practical voltage source can be transformed into an equivalent practical current source and similarly a practical current source into voltage source.

Lesson 14 Solving Circuits With Dependent Current Sources

Any practical voltage source or simply a voltage source consists of an ideal voltage source in series with an internal resistance or impedance for any ideal source this impedance will be zero the output voltage becomes independent of the load current.

Voltage source to current source transformation. Source transformation is a technique to replace a voltage source with a current source for circuit simplification and vice versa. Both circuits contain the same 3 kω resistor and the current source in circuit a is 5 ma. It is observed that source transformation may simplify a circuit.

Specifically given a real current source which is an ideal current source in parallel with an impedance applying a source transformation gives an equivalent real voltage source which is an ideal voltage source in series with the impedance. The impedance retains its value and the new voltage source has value equal to the ideal current source s value times the impedance according to ohm s law. For the upper portion we have v 3 1 3 v with the positive terminal oriented downwards in series with a 1 ω resistor.

Replacing series or parallel resistors by an equivalent resistor. Replacing parallel current sources by an equivalent source source. Source transformation voltage current electrical source transformation is a method of replacing voltage source in a circuit by its equivalent current source and current source by its equivalent voltage source.

Source transformation is a circuit analysis technique in which we transform voltage source in series with resistor into a current source in parallel with the resistor and vice versa. The sample circuit shown below depicts the same transformation of a current source to a voltage source with some numbers plugged in. Each simplification is done in such a way that the voltage or current measured by the meter is not disturbed.

The equivalent circuits are those who s v i characteristic are identical. Replacing series voltage sources by an equivalent voltage source. The source transformation technique is required to simplify an electric circuit for analysis.

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. Now let us apply current to voltage source transformation for the circuit elements indicated in figure 7 b.

The current source needs to be converted to a voltage source or a voltage source to a current source.