By Topic

An algorithm for simulating power/ground networks using Pade approximants and its symbolic implementation

Sign In

Cookies must be enabled to login.After enabling cookies , please use refresh or reload or ctrl+f5 on the browser for the login options.

Formats Non-Member Member
$31 $13
Learn how you can qualify for the best price for this item!
Become an IEEE Member or Subscribe to
IEEE Xplore for exclusive pricing!
close button

puzzle piece

IEEE membership options for an individual and IEEE Xplore subscriptions for an organization offer the most affordable access to essential journal articles, conference papers, standards, eBooks, and eLearning courses.

Learn more about:

IEEE membership

IEEE Xplore subscriptions

4 Author(s)
Shah, J.C. ; Dept. of Electr. Eng. & Comput. Eng., Iowa State Univ., Ames, IA, USA ; Younis, A.A. ; Sapatnekar, S.S. ; Hassoun, M.M.

This paper presents an event-driven algorithm and its symbolic implementation for the analysis of power and ground (P/G) bus networks. The algorithm uses frequency-domain techniques and moment matching approaches based on Pade approximants to estimate the transfer function at each node in the P/G network. Afterwards, the transient waveforms are extracted for each node. The process requires repetitive simulation of a linear and time-variant (from one time event to the next) circuit model for the P/G network which is the reason a symbolic implementation was produced. The P/G network is modeled by a hierarchical combination of mesh and tree structures that are composed of a collection of RC-π-segments and pulldown (or pullup) switches. The switches are symbolically represented by Boolean variables and a compiled symbolic code is generated only once for each P/G network. The transient waveforms are then produced by repetitive evaluation of the symbolic output. The results show that the symbolic implementation is an order of magnitude faster, with reasonably good accuracy, than using a traditional analog circuit simulator like SPICE

Published in:

Circuits and Systems II: Analog and Digital Signal Processing, IEEE Transactions on  (Volume:45 ,  Issue: 10 )