Analog circuit model for loudspeakers including eddy current behavior and suitable for time domain simulation

Stephen Thompson, Daniel M. Warren

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

1 Scopus citations

Abstract

This paper presents two analog circuit models for the blocked electrical impedance for a moving coil loudspeaker. The first includes an exact model of the effects of eddy currents as derived by Vanderkooy. The model is implemented using a continued fraction expansion which allows an implementation using conventional electrical circuit components. An alternative circuit suggested by Leach uses fewer components and can model not only purely semi-inductive behavior, but also other frequency variations that are are sometimes observed. Because these eddy current models do not use frequency dependent components, they can be used in time domain simulations of loudspeaker behavior that are capable of modeling mechanical and magnetic nonlinearities.

Original languageEnglish (US)
Title of host publication143rd Audio Engineering Society Convention 2017, AES 2017
PublisherAudio Engineering Society
Pages137-143
Number of pages7
Volume1
ISBN (Electronic)9781510870703
StatePublished - Jan 1 2017
Event143rd Audio Engineering Society Convention 2017, AES 2017 - New York, United States
Duration: Oct 18 2017Oct 20 2017

Other

Other143rd Audio Engineering Society Convention 2017, AES 2017
CountryUnited States
CityNew York
Period10/18/1710/20/17

All Science Journal Classification (ASJC) codes

  • Electrical and Electronic Engineering
  • Modeling and Simulation
  • Acoustics and Ultrasonics

Fingerprint Dive into the research topics of 'Analog circuit model for loudspeakers including eddy current behavior and suitable for time domain simulation'. Together they form a unique fingerprint.

  • Cite this

    Thompson, S., & Warren, D. M. (2017). Analog circuit model for loudspeakers including eddy current behavior and suitable for time domain simulation. In 143rd Audio Engineering Society Convention 2017, AES 2017 (Vol. 1, pp. 137-143). Audio Engineering Society.