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Unformatted text preview: Defining Voltages: The mesh current’s direction is positive, while adjacent currents are negative; entering a positive terminal first is a positive contribution to loop voltage. Workaround: If voltage cannot be defined (e.g., current sources are present) then create a supermesh that surrounds the undefined region. Apply KVL to the supermesh, and make up for lost equations with KCL within the mesh. When to use: 1. When there are more nodes than meshes 2. Lots of series connections 3. Large supermeshes 4. Voltage source heavy Superposition Key Concept: The voltage across (or current through) an element in a linear circuit equals the sum of the voltages (or currents) due to each independent source acting alone Source Transformation Key concept: A voltage source in series with a resistance can be transformed into a current source in parallel with the same resistance, and vice versa, with a current equal to the voltage source divided by the resistance....
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This note was uploaded on 11/02/2010 for the course ECE 3710 taught by Professor Haris during the Spring '07 term at Georgia Institute of Technology.
- Spring '07