A digital hearing aid with a voltage converter for supplying...

H - Electricity – 04 – R

Patent

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Details

H04R 25/00 (2006.01) H02J 7/00 (2006.01)

Patent

CA 2396437

In a digital hearing aid including one or more integrated circuit signal processing parts, to which operation voltages are supplied by a power source including a standard hearing aid battery, at least one of said integrated circuit signal processing parts is designed to operate at a reduced unstabilized operation voltage substantially below a nominal voltage of the battery and a switched step-down voltage converter is connected between the power source and such signal processing parts for lowering the battery voltage to provide the reduced operation voltage.

Dans cet appareil de correction acoustique, pourvu d'un ou de plusieurs éléments de traitement de signal à circuit intégré auxquels des tension de fonctionnement sont fournies par une source d'alimentation électrique pourvue d'une pile pour appareil de correction auditive classique, l'un au moins de ces éléments de traitement de signal à circuit intégré est conçu pour fonctionner avec une tension de fonctionnement abaissée non stabilisée, sensiblement en dessous de la tension nominale de la pile. Un convertisseur abaisseur de tension commuté est connecté entre la source d'alimentation électrique et les éléments de traitement de signal afin d'abaisser la tension de la pile et, donc, de fournir cette tension de fonctionnement abaissée.

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