ABSTRACT
This chapter discusses a summary of the nodal and mesh formulations. It reviews them because they are the best ones for analysis of small networks and explores the tableau formulation. The chapter describes the best method for computerized solutions; it is used in many commercial simulators. It presents a method that is suitable for hand solutions of active networks and which automatically leads to the smallest system of equations. Network analysis is based on formulation of the relevant equations and on their solutions. Low-frequency analog filters are often built with active RC networks and the active elements are almost always operational amplifiers. Classical methods use two types of network equations formulation: the nodal and the mesh. The first one is based on Kirchhoff’s current law: the sum of currents flowing away from a node is equal to zero. The mesh method is based on Kirchhoff’s voltage law: the sum of voltages around any loop is equal to zero.
