RCLK-VJ network reduction with Hurwitz polynomial approximation

  • Authors:
  • Zhanhai Qin;Chung-Kuan Cheng

  • Affiliations:
  • University of California, San Diego, La Jolla, CA;University of California, San Diego, La Jolla, CA

  • Venue:
  • ASP-DAC '03 Proceedings of the 2003 Asia and South Pacific Design Automation Conference
  • Year:
  • 2003

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Abstract

We propose a new linear network reduction algorithm based on a generalized Y-Δ transformation technique in s-domain. Resultant admittance is kept as a rational function of s with a dramatically reduced order. Yet it preserves low-order terms of exact admittance evaluated with traditional symbolic analysis. Stability of transfer functions derived from reduced-order admittance is guaranteed via a Hurwitz polynomial approximation. Such low-order transfer functions are used in pole analysis and time domain waveform evaluation in response to any input signal.