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G. Pillonnet, E. Sturtzer, T. Rossignol, P. Tournier, and G. Lemarquand, "Distortion Improvement in the Current Coil of a Loudspeaker," Paper 8844, (2013 May.). doi: G. Pillonnet, E. Sturtzer, T. Rossignol, P. Tournier, and G. Lemarquand, "Distortion Improvement in the Current Coil of a Loudspeaker," Paper 8844, (2013 May.). doi:
Abstract: This paper deals with the comparison of voltage and current driving units in an active audio system. The effect of the audio amplifier control on the current coil of an electrodynamic loudspeaker is presented. In voltage control topology, the electromagnetic force linked to coil current is controlled through the load impedance. Thus, the electromechanical conversion linearity is decreased by the impedance variation, which implies a reduction of the overall audio quality. A current driving method could reduce the effect of the non-linear impedance by controlling the coil current directly, thereby the acceleration. Large signal impedance modeling is given in this paper to underline the non-linear effects of electrodynamic loudspeaker parameters on the coupling. As a result, the practical comparison of voltage and current driven methods proves that the current control reduces the voice coil current distortions in the three different loudspeakers under test.

@article{pillonnet2013distortion,
author={pillonnet, gaël and sturtzer, eric and rossignol, timothé and tournier, pascal and lemarquand, guy},
journal={journal of the audio engineering society},
title={distortion improvement in the current coil of a loudspeaker},
year={2013},
volume={},
number={},
pages={},
doi={},
month={may},} @article{pillonnet2013distortion,
author={pillonnet, gaël and sturtzer, eric and rossignol, timothé and tournier, pascal and lemarquand, guy},
journal={journal of the audio engineering society},
title={distortion improvement in the current coil of a loudspeaker},
year={2013},
volume={},
number={},
pages={},
doi={},
month={may},
abstract={this paper deals with the comparison of voltage and current driving units in an active audio system. the effect of the audio amplifier control on the current coil of an electrodynamic loudspeaker is presented. in voltage control topology, the electromagnetic force linked to coil current is controlled through the load impedance. thus, the electromechanical conversion linearity is decreased by the impedance variation, which implies a reduction of the overall audio quality. a current driving method could reduce the effect of the non-linear impedance by controlling the coil current directly, thereby the acceleration. large signal impedance modeling is given in this paper to underline the non-linear effects of electrodynamic loudspeaker parameters on the coupling. as a result, the practical comparison of voltage and current driven methods proves that the current control reduces the voice coil current distortions in the three different loudspeakers under test.},}

TY - paper
TI - Distortion Improvement in the Current Coil of a Loudspeaker
SP - EP -
AU - Pillonnet, Gaël
AU - Sturtzer, Eric
AU - Rossignol, Timothé
AU - Tournier, Pascal
AU - Lemarquand, Guy
PY - 2013
JO - Journal of the Audio Engineering Society
IS -
VO -
VL -
Y1 - May 2013 TY - paper
TI - Distortion Improvement in the Current Coil of a Loudspeaker
SP - EP -
AU - Pillonnet, Gaël
AU - Sturtzer, Eric
AU - Rossignol, Timothé
AU - Tournier, Pascal
AU - Lemarquand, Guy
PY - 2013
JO - Journal of the Audio Engineering Society
IS -
VO -
VL -
Y1 - May 2013
AB - This paper deals with the comparison of voltage and current driving units in an active audio system. The effect of the audio amplifier control on the current coil of an electrodynamic loudspeaker is presented. In voltage control topology, the electromagnetic force linked to coil current is controlled through the load impedance. Thus, the electromechanical conversion linearity is decreased by the impedance variation, which implies a reduction of the overall audio quality. A current driving method could reduce the effect of the non-linear impedance by controlling the coil current directly, thereby the acceleration. Large signal impedance modeling is given in this paper to underline the non-linear effects of electrodynamic loudspeaker parameters on the coupling. As a result, the practical comparison of voltage and current driven methods proves that the current control reduces the voice coil current distortions in the three different loudspeakers under test.