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Therapy delivery method and system for implantable medical devices

  • US 9,168,379 B2
  • Filed: 09/26/2012
  • Issued: 10/27/2015
  • Est. Priority Date: 09/26/2012
  • Status: Active Grant
First Claim
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1. An implantable medical device, comprising:

  • a power source;

    a plurality of output capacitors;

    a charge circuit coupled to the power source and to the plurality of output capacitors, having;

    a transformer having a single primary winding coupled to the power source and a single secondary winding coupled to the plurality of output capacitors, each of the plurality of output capacitors being coupled to the single secondary winding during charging;

    a first diode coupled directly between the single secondary winding and a first of the plurality of capacitors;

    a second diode coupled directly between the first diode and a second of the plurality of capacitors;

    a third diode coupled directly between the second diode and a third of the plurality of capacitors, wherein the first, second and third diodes are configured to regulate a charging polarity for the plurality of output capacitors, and wherein the coupling configuration between the single secondary winding and the plurality of capacitors triggers simultaneously transfer of charge from the power source to the plurality of capacitors;

    a coupling means for coupling the plurality of output capacitors in a parallel configuration prior to commencement of the charging of the capacitors and in a combination series configuration in response to termination of charging of the capacitors.

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