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Power architecture for an implantable medical device having a non-rechargeable battery

  • US 9,782,599 B2
  • Filed: 02/13/2017
  • Issued: 10/10/2017
  • Est. Priority Date: 02/10/2012
  • Status: Active Grant
First Claim
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1. An implantable medical device, comprising:

  • at least one electrode configured to provide stimulation to a patient'"'"'s tissue;

    a battery configured to output a battery voltage;

    a first converter circuit configured to boost the battery voltage to a first boosted voltage;

    threshold circuitry configured to determine if the battery voltage is greater than or equal to a predetermined threshold voltage, and configured to determine if the battery voltage is less than the predetermined threshold voltage;

    first circuitry powered by the battery voltage when the threshold circuitry determines that the battery voltage is greater than or equal to the predetermined threshold voltage, and by the boosted voltage when the threshold circuitry determines that the battery voltage is less than the predetermined threshold voltage;

    a second converter circuit configured to boost the battery voltage to a second boosted voltage; and

    at least one Digital-to-Analog converter configured to provide current to the at least one electrode, wherein the at least one Digital-to-Analog converter is powered only by the second boosted voltage.

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