Performance optimization of nonlinear electrical networks

A program suite for the optimization of nonlinear networks is described. This suite provides an interactive automated design aid within a small-machine environment.A unified approach for time-domain design is presented. A generalized form of performance function is used and is based on the development of the adjoint-network from Tellegen's theorem. A suitable set of the adjoint-network excitations is also obtained.The constrained optimization of the performance function is transformed by a change of variables into an unconstrained problem. Powell's algorithm for unconstrained minimization is used. The optimization algorithm requires the value of the performance function and its derivatives which are obtained from analyses of the network and its adjoint.The program is implemented on a small computer with 16k words of (16-bit) core store. The overall structure of the program suite is described and results of the optimization of some simple circuits are given.