METHOD FOR OPERATING A HEARING DEVICE AND A HEARING DEVICE OPTIMIZED FOR BEING POWERED BY A MERCURY-FREE BATTERY
First Claim
1. A method for operating a hearing device (1) comprising a power management unit (6), a loudspeaker and a plurality of electronic units, such as for instance a control unit (7), a signal processing unit (8), a memory unit, a wireless transceiver unit and an amplifier (9), the method comprising the steps of:
- a) powering the plurality of electronic units (7, 8, 9) by means of a battery (2) providing a battery voltage;
b) stabilising the battery voltage by means of a buffer capacitor (4) connected parallel to the battery (2), and thus providing a supply voltage;
c) monitoring the “
supply voltage of at least one of the plurality of electronic units (7, 8, 9);
d) initiating a low battery leakage shutdown state when a low supply voltage condition is identified based on the monitoring;
wherein the initiating a low battery leakage shutdown state is characterised byactivating at least one power gate (10) to disconnect at least one of the plurality of electronic units (7, 8, 9) from the supply voltage when entering the low battery leakage shutdown state;
discharging the buffer capacitor (4).
1 Assignment
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Accused Products
Abstract
The present invention proposes a method for operating a hearing device which prevents battery leakage, especially in the case when the hearing device 1 is powered by a mercury-free battery 2. The method comprises monitoring a supply voltage of at least one of a plurality of electronic units 7, 8, 9 of the hearing device 1, initiating a low battery leakage shutdown state when a low supply voltage condition is identified based on the monitoring, wherein the initiating a low battery leakage shutdown state includes activating at least one power gate 10 to disconnect at least one of the plurality of electronic units 7, 8, 9 from the power supply when entering the low battery leakage shutdown state, and discharging a buffer capacitor 4 provided for stabilising the battery voltage. Moreover, a hearing device 1 optimised for being powered by a mercury-free battery 2 is provided.
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Citations
2 Claims
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1. A method for operating a hearing device (1) comprising a power management unit (6), a loudspeaker and a plurality of electronic units, such as for instance a control unit (7), a signal processing unit (8), a memory unit, a wireless transceiver unit and an amplifier (9), the method comprising the steps of:
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a) powering the plurality of electronic units (7, 8, 9) by means of a battery (2) providing a battery voltage; b) stabilising the battery voltage by means of a buffer capacitor (4) connected parallel to the battery (2), and thus providing a supply voltage; c) monitoring the “
supply voltage of at least one of the plurality of electronic units (7, 8, 9);d) initiating a low battery leakage shutdown state when a low supply voltage condition is identified based on the monitoring; wherein the initiating a low battery leakage shutdown state is characterised by activating at least one power gate (10) to disconnect at least one of the plurality of electronic units (7, 8, 9) from the supply voltage when entering the low battery leakage shutdown state; discharging the buffer capacitor (4).
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2-15. -15. (canceled)
Specification