Engineering Posts

  Nodal Analysis 1. Nodal analysis can be applied for the planner and non-planner networks 2. Nodal  analysis is based on the application of KCL Note:  1. A principle node is a point where more than two branches are connected. 2. A simple node is a point where two branches are connected. The procedure of nodal analysis: Step 1:   Identify the total no. of principle nodes Step 2:   Assign voltages to each principle node and take one of the nodes as a reference node Step 3:   Develop KCL equations for each node(except for reference node) Step 4:   Solve the KCL equations to get node voltages A special case of nodal analysis(Supernode) A supernode exists in a circuit when two non-reference nodes separated by a pure voltage source The procedure of super nodal analysis: Step 1:   Identify the total no. of principle nodes Step 2:   Assign voltages to each principle node and take one of the nodes as a reference node Step 3:   If super node foun...

  Mesh Analysis Ø  A mesh is loop which doesn't contain any inner loop Ø  Mesh analysis is only applicable to planner networks Procedure of mesh analysis: Step 1:   Identify the total no. of meshes Step 2:   Assign the mesh currents to each mesh either in anti clock wise or clock wise direction Step 3:   Develop KVL equations for each mesh Step 4:   Solve the KVL equations to get mesh currents Special case of mesh analysis(Super mesh) A super mesh exists in a circuit when two meshes separated by the common current source branch Procedure of super mesh analysis: Step 1:   Identify the total no. of meshes Step 2:   Assign the mesh currents to each mesh either in anti clock wise or clock wise direction Step 3:   If super mesh found, then develop KVL equation for super mesh Step 4:   Develop KCL equation at common current source node. Step 5:   Solve KVL and KCL equations to get mesh currents