ECE201Lect-10

# ECE201Lect-10 - Loop(Mesh Analysis(3.2 ECE201 Lect-10 1...

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ECE201 Lect-10 1 Loop (Mesh) Analysis (3.2)

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ECE201 Lect-10 2 Loop Analysis Nodal analysis was developed by applying KCL at each non-reference node. Loop analysis is developed by applying KVL around loops in the circuit. Loop (mesh) analysis results in a system of linear equations which must be solved for unknown currents.
ECE201 Lect-10 3 Example: A Summing Circuit The output voltage V of this circuit is proportional to the sum of the two input voltages V 1 and V 2 . This circuit could be useful in audio applications or in instrumentation. The output of this circuit would probably be connected to an amplifier.

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ECE201 Lect-10 4 Summing Circuit Solution: V out = ( V 1 + V 2 )/3 + V out 1k 1k 1k V 1 V 2 + +
ECE201 Lect-10 5 Steps of Mesh Analysis 1. Identify mesh (loops). 2. Assign a current to each mesh. 3. Apply KVL around each loop to get an equation in terms of the loop currents. 4. Solve the resulting system of linear equations.

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ECE201 Lect-10 6 Mesh 2 1k 1k 1k Identifying the Meshes V 1 V 2 Mesh 1 + +
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