SUMMARY

Monday, 13 August 2018

12:19 PM

Machine generated alternative text: • 2 Topic 3 recap • Formal circuit analysis aims to derive the smallest set of simultaneous equations that completely define the operating characteristics of a circuit. • Nodal and mesh analysis are based on the systematic application of Kirchhoffs laws. Nodal analysis • Three steps: — Set the reference node and node voltages. Apply KCL and use Ohm's law to write currents in terms of node voltages. — Solve the set of linear equations for node voltages. Nodal analysis with voltage source: Case 1: Voltage source is connected to the reference node. source Case 2: Voltage source is between two non-reference nodes. • Form a supernode by enclosing voltage source and any parallel element with it. Write the constraint equation relating the node voltages inside the supernode. Va — Vb = Vsource

 

Machine generated alternative text: Topic 3 recap Mesh analysis • Three steps: — Set the mesh currents with arbitrary direction (generally clockwise). — Apply KVL and use Ohm's law to write voltages in terms of mesh currents. — Solve the set of linear equations for mesh currents. Mesh analysis with current source: • — Case 1: Current source is only in one mesh. source — Case 2: Current source is shared between two meshes. • Form a supermesh by excluding the current source and any series element with it. Write the constraint equation relating the mesh currents inside the supermesh. source 3

 

 

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