Post on 01-Jan-2016
transcript
3.1. Introduction
Step to analyze AC Circuits:
1. Transform the circuit to the phasor or frequency domain.
2. Solve the problem using circuit techniques (nodal analysis, mesh analysis, superposition, etc.)
3. Transform the resulting phasor to the time domain.
Example 3.2
Compute and in the circuit of Fig.
Solution:Nodes 1 and 2 form a supernode as shown Fig. Applying KCL at the supernode gives;
3.3. Mesh Analysis
Determine current in the circuit of fig, using mesh analysis.
Applying KVL to mesh 1, we obtain
Example 3.4
Solve for in the circuit in fig, using mesh analysis.
As shown fig, meshes 3 and 4 form a supermesh due to the current source between the meshes.