An approach to integrated numerical and symbolic circuit analysis

Zuberek, W.M. and Konczykowska, A.

Proc. IEEE Int. Symp. on Circuits and Systems (ISCAS'94); London, England, 30 May - 2 June 1994, pp.33-36.

Abstract:

An interface to symbolic circuit analysis has been developed for a SPICE-like circuit simulator in order to integrate numerical simulation with an existing program for symbolic circuit analysis. In effect, both numerical and symbolic analyses use the same internal representation of circuits which makes the two approaches truly complementary. This integrated simulation capability is used in simulation-based parameter extraction where all ac small-signal parameters are fitted through the symbolic analysis rather than numerical one, significantly reducing the execution time of the extraction process.

Keywords:

Circuit simulation, symbolic circuit analysis, parameter extraction, SPICE, SPICE-PAC.

References:

• G. Gielen, W. Sansen, Symbolic analysis for automated design of analog intergrated circuits; Kluwer Academic Publ. 1991.
• A. Konczykowska, W.M. Zuberek, J, Dangla, "Parameter extraction with the FIT-2 program"; Proc. European Conf. on Circuit Theory and Design, Copenhagen, Denmark, pp.762-771, 1991.
• P-M. Lin, Symbolic network analysis; Elsevier 1991.
• W.J. McCalla, Fundamentals of computer-aided circuit simulation; Kluwer Academic Publ. 1988.
• D.O. Pederson, "A historical review of circuit simulation"; IEEE Trans. on Circuits and Systems, vol.31, no.1, pp.103-111, 1984.
• J. Vlach, K. Singhal, Computer methods for circuit analysis and design; Van Nostrand Reinhold 1983.
• W.M. Zuberek, A. Konczykowska, C. Algani, H. Wang, J. Dangla, "Simulation-based parameter extraction, its implementation and some applications"; IEE Proc. on Circuits, Devices and Systems, vol.141, no.2, pp.129-134, 1994.

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