Electroacoustic transducer

H - Electricity – 04 – R

Patent

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Details

H04R 23/00 (2006.01) H04R 3/00 (2006.01) H04R 19/00 (2006.01)

Patent

CA 2257447

The present invention relates to an electroacoustic transducer where the voltage of a capacitive acoustic element is controlled by charging and discharging the charge of the element via an inductance (L) by fast switches (K1, K2). In that case energy unconverted into the acoustic energy of the transducer can be transferred to an energy storage of an electrical circuit formed by the inductance (L) and the capacitance (C1, C2, C0) during each control sequence and in this way the transducer can be made to operate with a good coefficient of efficiency.

Cette invention concerne un transducteur électroacoustique dans lequel la tension d'un élément acoustique capacitif est commandée en chargeant et en déchargeant la charge dudit élément par une inductance (L) et à l'aide de commutateurs rapides (K¿1?, K¿2?). L'énergie qui n'a pas été convertie en énergie acoustique émise par le transducteur, peut ainsi être transférée vers un dispositif de stockage d'énergie d'un circuit électrique formé par l'inductance (L) et la capacité (C¿1?, C¿2?, C¿0?) lors de chaque séquence de commande. Il est ainsi possible d'obtenir un transducteur qui possède un bon indice d'efficacité lors de son fonctionnement.

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