Circuit Theory I Chapter 1 Introduction

Network Theory IChapter 3Methods of AnalysisNodal Analysis2Define nodes: 2

Nodal AnalysisExample 3.1Find the node voltages of the network.3Define nodes: 3Nodal AnalysisExerciseFind the node voltages of the network.4

Define nodes: 4Nodal Analysis with Voltage Sources5Case I

Voltage sources appear between a nonreference node and the reference node.

Nonreference node voltage is equal to the voltage of the voltage source.

Case II

Voltage sources appear between two nonreference nodes.

Form a supernode by enclosing the voltage source and any elements connected in parallel with it.

Define nodes: 5Nodal Analysis by Inspection6Example 3.5

Define nodes: 6Mesh Analysis7

3 Meshes5 MeshesDefine nodes: 7Mesh Analysis8Define nodes: 8Mesh Analysis with Current Sources9Case I

Current source exists only in one mesh.

Mesh current is determined by the current source.

Case II

Current source exists between two meshes.

Form a supermesh by excluding the current source and any elements connected in series with it.

Define nodes: 910