Efficient mixed-domain behavioural modeling of ferromagnetic hysteresis implemented in VHDL-AMS

Peter R. Wilson, J. Neil Ross, Andrew D. Brown, Tom Kazmierski, Jerzy Baranowski

Research output: Chapter in Book/Report/Conference proceedingConference contribution

5 Citations (Scopus)

Abstract

In this paper a modified model of ferromagnetic hysteresis suitable for mixed-signal simulations in VHDL-AMS is presented The aim of this paper is to demonstrate how a numerically stable and accurate implementation of the Jiles-Atherton model can be achieved using a 4th order Runga-Kutta integration of the derivative of magnetization with respect to the field strength (H). While most SPICE-like implementations require inconvenient integration in time to obtain the magnetization derivative, our approach is more general as it does not rely on the underlying differential equation solver for this purpose. The model addresses the non-physical situation of negative BH slopes and proposes an alternative implementation of the anhysteretic function using a polynomial approximation of the Langevin function for low signal levels and a new function with no discontinuities. Model efficiency is improved by monitoring the change in H and only activating the integration function when H changes by a specified amount.

Original languageEnglish
Title of host publicationProceedings - Design, Automation and Test in Europe Conference and Exhibition, DATE 04
EditorsG. Gielen, J. Figueras
Pages742-743
Number of pages2
DOIs
Publication statusPublished - 2004
EventProceedings - Design, Automation and Test in Europe Conference and Exhibition, DATE 04 - Paris, France
Duration: 16 Feb 200420 Feb 2004

Publication series

NameProceedings - Design, Automation and Test in Europe Conference and Exhibition
Volume1

Conference

ConferenceProceedings - Design, Automation and Test in Europe Conference and Exhibition, DATE 04
CountryFrance
CityParis
Period16/02/0420/02/04

ASJC Scopus subject areas

  • Engineering(all)

Fingerprint

Dive into the research topics of 'Efficient mixed-domain behavioural modeling of ferromagnetic hysteresis implemented in VHDL-AMS'. Together they form a unique fingerprint.

Cite this