Symbolic Steady-State Analysis for Strongly Nonlinear Circuits and Systems
Authors: Wen C.1; Floberg H.1; Shui-Sheng Q.2
Source: Analog Integrated Circuits and Signal Processing, Volume 31, Number 2, May 2002 , pp. 177-184(8)
Publisher: Springer
Abstract:
A symbolic method for steady-state analysis of nonlinear circuits and systems is presented. This method is based on the principle of the Equivalent Small Parameter method (the ESP method), which is an improved perturbation technique combined with the harmonic balance method. Using this method, a set of high-order nonlinear differential equations can be solved and the symbolic expressions of the steady-state periodic solutions for the required variables can be obtained. Two examples are given and show that the method is general and can be used for both weakly and strongly nonlinear circuits, and time-variant nonlinear circuits such as switching mode circuits.
Keywords: symbolic analysis; nonlinear theory; nonlinear system; circuit theory
Language: English
Document Type: Regular paper
Affiliations: 1: Ericsson Mobile Communications AB, Nya Vattentornet, SE-221 83 Lund, Sweden 2: Department of Electronics and Communications, South China University of Technology, 510641, Guangzhou, China

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