Device for controlling a loudspeaker with current limitation
AssigneeDevialet
InventorsEduardo MENDES, Frédéric LEPOUTRE, Pierre-Emmanuel CALMEL
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Abstract
This control device for controlling a loudspeaker (14) in a loudspeaker enclosure, comprises: an input for an audio signal to be reproduced; a supply output for supplying an excitation signal for the loudspeaker; the calculation means (26, 36, 38, 70, 71, 80, 90) for calculating, at each time instant (t), at least one predicted current (iref(t)) for the excitation signal for the loudspeaker (14) as a function of the audio signal. It comprises an attenuator (71) that is capable of limiting the predicted current to a limited current value that is lower than a ceiling value by application, to the predicted current, of an attenuation gain which is a function of the predicted current.
Claims8
A control device for controlling a loudspeaker in a loudspeaker enclosure, comprising:
- an input for an audio signal be reproduced;
- a supply output for supplying an excitation signal for the loudspeaker;
- the calculation means for calculating, at each time instant, at least one predicted current for the excitation signal for the loudspeaker as a function of the audio signal;
- wherein it comprises an attenuator that is capable of limiting the predicted current to a limited current value that is lower than a ceiling value by application, to the predicted current, of an attenuation gain which is a function of the predicted current.
Dependencies are inferred from the claim text.