Distortion Improvement in the Current Coil of a Loudspeaker

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[1]  Nacer Abouchi,et al.  Comparison between voltage and current driving methods of a micro-speaker , 2012 .

[2]  Hee Jun Kim,et al.  A new class-D stereo audio amplifier using direct speaker current control , 2004, 2004 IEEE 35th Annual Power Electronics Specialists Conference (IEEE Cat. No.04CH37551).

[3]  Malcolm J. Hawksford,et al.  Distortion Reduction in Moving-Coil Loudspeaker Systems Using Current-Drive Technology , 1989 .

[4]  Guy Lemarquand,et al.  Modeling of the nonlinear distortion in electrodynamic loudspeakers caused by the voice-coil inductance , 2014 .

[5]  Andrew Bright Tracking Changes In Linear Loudspeaker Parameters with Current Feedback , 2003 .

[6]  Wolfgang Klippel,et al.  Fast Measurement of Motor and Suspension Nonlinearities in Loudspeaker Manufacturing , 2009 .

[7]  Richard H. Small,et al.  Direct Radiator Loudspeaker System Analysis , 1971 .

[8]  E.H. Schulz Comparison of Voltage- and Current-Feedback Amplifiers , 1943, Proceedings of the IRE.

[9]  M. Woytasik,et al.  Electrodynamic MEMS: Application to Mobile Phone Loudspeakers , 2012, IEEE Transactions on Magnetics.

[10]  Romain Ravaud,et al.  Ranking of the nonlinearities of electrodynamic loudspeakers , 2010 .

[11]  E. De Boer,et al.  Theory of motional feedback , 1961 .

[12]  Enrico Dallago,et al.  PWM Power Audio Amplifier With Voltage/Current Mixed Feedback for High-Efficiency Speakers , 2007, IEEE Transactions on Industrial Electronics.

[13]  David Wilson,et al.  The Use of Negative Source Impedance with Moving Coil Loudspeaker Drive Units: A Review and Analysis , 2007 .

[14]  James J. Davidson A Low-Noise Transistorized Tape Playback Amplifier , 1965 .

[15]  Sawako Usuki,et al.  Ultra-thin micro-loudspeaker using Oblique Magnetic Circuit , 2008 .

[16]  Remy Cellier,et al.  Sliding mode audio class-D amplifier for portable devices , 2013 .