Accession Number : AD0745639

Title :   Fast Periodic Steady State Analysis of Large Signal Electronic Circuits,

Corporate Author : ILLINOIS UNIV URBANA COORDINATED SCIENCE LAB

Personal Author(s) : Colon,Francis Robert

Report Date : MAY 1972

Pagination or Media Count : 101

Abstract : A computer program has been developed to analyze the static, transient and steady state response of nonlinear circuits. The static or d.c. response of the circuit is obtained by using a nodal based Newton-Raphson iterative technique which has been modified to eliminate the usual instability and which gives fast reliable answers. The transient response is determined by using an A-stable variable step size integration formula applied directly to the nodal equations. With the mechanism for transient analysis established it is then possible to perform periodic analysis of nonlinear circuits through the use of a Newton iterative technique that will handle autonomous and non-autonomous systems and which has been found to be more reliable than harmonic balance techniques and which is much faster than simply integrating the equations until the transients become negligible. This technique then is especially valuable for analyzing high Q circuits and for design purposes where fast analysis is essential. (Author)

Descriptors :   (*CIRCUITS, NUMERICAL ANALYSIS), NONLINEAR SYSTEMS, COMPUTER PROGRAMMING, PARTIAL DIFFERENTIAL EQUATIONS, MATRICES(MATHEMATICS), NUMERICAL INTEGRATION, ALGORITHMS, TRANSISTORS, TRANSIENTS

Subject Categories : Electrical and Electronic Equipment
      Computer Programming and Software

Distribution Statement : APPROVED FOR PUBLIC RELEASE