Conference Proceedings

Order reduction for circuit models obtained via modified nodal analysis

G Buskes, M Cantoni, MH Hamza (ed.)

PROCEEDINGS OF THE 23RD IASTED INTERNATIONAL CONFERENCE ON MODELLING, IDENTIFICATION, AND CONTROL | ACTA PRESS | Published : 2004

Abstract

The application of balanced truncation order reduction, which admits an a priori error bound that holds over all frequencies, is investigated within the context of large-scale circuit models. Although balanced truncation is well understood for models expressed in regular state-space form, automatable circuit modelling techniques, such as Modified Nodal Analysis (MNA), often yield models in a so-called descriptor form, which is not directly amenable to standard balanced truncation order reduction. It is shown in this paper that, for a class of lumped circuit networks, a model that is amenable to balanced truncation can be obtained via computationally inexpensive manipulation of the standard M..

View full abstract