07-Superposition

# 07-Superposition - MILWAUKEE SCHOOL OF ENGINEERING EE 2050...

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MILWAUKEE SCHOOL OF ENGINEERING EE 2050 EE 2050 LABORATORY EXPERIMENT 5 – Week 7 SUPERPOSITION Goal: Calculate and verify experimentally circuit voltages and currents, when more than one voltage source is present, by the process of superposition. Background: Superposition is a process for determining current and/or voltage in a linear circuit that has more than one independent source. The total voltage and/or current is obtained by adding the contribution from each source acting alone. Circuits that contain more than one source include amplifiers (dc source and ac source), audio mixers (dc source and ac sources). The superposition technique involves the following steps: Step 1. Deactivate all independent sources except one. Replace each of the deactivated independent voltage sources with a short, and replace the deactivated independent current sources with an open circuit. Determine the magnitude and direction of all currents of interest. Also, determine the magnitude and polarity of all voltages of interest.

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