Sample Circuit: 1 Unknown Node
Consider three lossy voltage sources in parallel as a context for outlining the procedure of mesh analysis. Note that there are actually 2 nodes, but the bottom one has been grounded to 0.0 V, so there is only one unknown nodal voltage.
Step 1: Assignment of Nodal Voltage
Assign a variable name to all nodes with unknown voltages.
Step 2: Apply KCL to Each Node
Assume that all currents flow away from the node. Apply KCL.
Step 3: Solve for the Unknown Voltages
In this case, there is only one equation involving one unknow voltage, which may be found with simple algebraic manipulation.
Last updated Sept. 14, 1998.
Copyright George Watson, Univ. of Delaware, 1998.