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Numerical Stability and Multirate Effect in Waveform Relaxation Algorithm with Under Relaxation Technique

Koichi HAYASHI, Hideki ASAI

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Summary :

This paper describes the waveform relaxation (WR) algorithm with the under relaxation method based on the virtual state formulation (VSF) technique and the effect of multirate behavior in this algorithm. First, we present the virtual state relaxation method using VSF technique. Next, we introduce the VSF method into WR algorithm in order to exploit the multirate behavior. Furthermore, we construct the relaxation-based circuit simulator DESIRE2 and apply this simulator to the transient analysis of MOS circuits. Finally, we show that the present technique enables to use efficiently the multirate integration method in VSR and reduce the total simulation time without losing the waveform accuracy.

Publication
IEICE TRANSACTIONS on Fundamentals Vol.E75-A No.6 pp.685-690
Publication Date
1992/06/25
Publicized
Online ISSN
DOI
Type of Manuscript
Special Section PAPER (Special Section of Papers Selected from 1991 Joint Technical Conference on Circuits/Systems, Computers and Communications (JTC-CSCC '91))
Category
Combinational/Numerical/Graphic Algorithms

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