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Unformatted text preview: -- Lecture 6 In the last five lectures, our electrical circuits have been analyzed using KVL, KCL, node - analysis, and mesh analysis. Another method of analyzing circuits is using the principle of superposition. For a linear system, the superposition principle states that: The net response at a given place and time caused by two or more stimuli is the sum ofthe responses which would have been caused by each stimulus individually. So if input A produces response X and input B produces response Y, then (A+B) produces response X+Y. When superposition is done on circuits, one source signal is analyzed at a time and the sum of the response is summed up. Consider that we had input signals Xl, X2, through X N . The response of Xl is obtained by assuming that X 2 through X N have zero values. Thus if X2 is a voltage source, then X2 will have zero voltage and thereby becomes a short circuit. Otherwise, if X2 is a current source, it has zero current and thus becomes an open circuit....
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- Spring '07