Verifying nonlinear analog and mixed-signal circuits with inputs

Chuchu Fan, Yu Meng, Jürgen Maier, Ezio Bartocci, Sayan Mitra, Ulrich Schmid

Research output: Contribution to journalArticle

Abstract

We present a new technique for verifying nonlinear and hybrid models with inputs. We observe that once an input signal is fixed, the sensitivity analysis of the model can be computed much more precisely. Based on this result, we propose a new simulation-driven verification algorithm and apply it to a suite of nonlinear and hybrid models of CMOS digital circuits under different input signals. The models are low-dimensional but with highly nonlinear ODEs, with nearly hundreds of logarithmic and exponential terms. Some of our experiments analyze the metastability of bistable circuits with very sensitive ODEs and rigorously establish the connection between metastability recovery time and sensitivity.

Original languageEnglish (US)
Pages (from-to)241-246
Number of pages6
JournalIFAC-PapersOnLine
Volume51
Issue number16
DOIs
StatePublished - Jan 1 2018

ASJC Scopus subject areas

  • Control and Systems Engineering

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