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Battery management for an implantable medical device

  • US 9,855,438 B2
  • Filed: 06/14/2016
  • Issued: 01/02/2018
  • Est. Priority Date: 07/20/2011
  • Status: Active Grant
First Claim
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1. Circuitry for an implantable medical device, comprising:

  • charging circuitry for providing power to a battery terminal node;

    isolation circuitry comprising first and second load switches in parallel, wherein both of the first and second load switches are directly connected to the battery terminal node and to a load voltage; and

    active circuitry within the implantable medical device, wherein the load voltage comprises a power supply voltage for the active circuitry,wherein the first load switch is opened if a voltage at the battery terminal node falls below a threshold, andwherein the second load switch is opened if at least one other fault condition is asserted.

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