![]() ![]() Using the current divider formula and multiplying by 8 I get Vx2įinally, I turn off all sources but the 4A current source: Now I shut down all sources (including the dependent voltage source like if it were an independent source) and leave the 6A source on: However, if I treat the dependent current source as an independent current source, I get the same results, Here's the procedure I followed: Normally I would leave the dependent source on, turn off the 4A current source and find Vx1, then I would turn off the 6A current source and find Vx2, add them up and find Vx. ![]() Simulate this circuit – Schematic created using CircuitLab "Find Vx using the superposition principle" Take the following problem from Alexander/Sadiku's Book as an example, which states: ![]() Ive simulated this, compared to the end-of-chapter problem solutions and it all turns out the same. However recently I've noticed that I can get the same results if I treat the dependent source as a regular independent source. "Dependent sources should never turn off when using the superposition principle analysis, they should be left intact since they are controlled by variables somewhere in the circuit". However, regarding dependent sources, every electric circuits book I've read says the same thing: Since I began studying, I was taught that when analysing a circuit using multiple sources, independent sources could be turned off, meaning that I could transform a voltage source into a short, and a current source into an open circuit and analyze the circuit by how each individual source acts on it. ![]()
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