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Method for operating a hearing device and a hearing device optimized for being powered by a mercury-free battery

  • US 10,104,479 B2
  • Filed: 12/04/2013
  • Issued: 10/16/2018
  • Est. Priority Date: 12/04/2013
  • Status: Active Grant
First Claim
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1. A method of operating a hearing device that includes a battery compartment with a battery door, a power management unit, a loudspeaker, a plurality of electronic units, and a plurality of power gates operably connected to the plurality of electronic units, the method comprising the steps of:

  • powering the plurality of electronic units with a battery in the battery compartment that provides a battery voltage;

    stabilizing the battery voltage and providing a supply voltage to the electronic units with a buffer capacitor that is connected in parallel to the battery;

    monitoring the supply voltage of at least one of the plurality of electronic units; and

    in response to a monitored low supply voltage condition, initiating a low battery leakage shutdown state by activating a power gate to disconnect the electronic unit operably connected thereto from the supply voltage and discharging the buffer capacitor in response to the battery door being opened.

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