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Superposition

Superposition. Principle of “Superposition” When a linear circuit is excited by more than one independent source of energy, the total response is the sum of the responses to each source acting individually. To find the response due to each independent source

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Superposition

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  1. Superposition • Principle of “Superposition” • When a linear circuit is excited by more than one independent source of energy, the total response is the sum of the responses to each source acting individually. • To find the response due to each independent source • suppress voltage sources by replacing them with short circuits (V=0). • suppress current sources by replacing them with open circuits (I=0). ECE 201 Circuit Theory I

  2. Example, page 123 of the text • Find the branch currents in the circuit shown. i1 i3 i2 i4 ECE 201 Circuit Theory I

  3. Find the response to the voltage source v1 i1’ i3’ i2’ i4’ ECE 201 Circuit Theory I

  4. Find the response to the current source v3 v4 i1” i3” i2” i4” ECE 201 Circuit Theory I

  5. Find the branch currents by adding the results due to each source i1 i3 i2 i4 ECE 201 Circuit Theory I

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