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System and Method for Wireless Power Transfer in Implantable Medical Devices

  • US 20120095531A1
  • Filed: 03/09/2010
  • Published: 04/19/2012
  • Est. Priority Date: 03/09/2009
  • Status: Active Grant
First Claim
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1. A system for energy transfer between devices, the system comprising:

  • a transmitting unit having a transmitting antenna circuit having a first resonant frequency and a high quality factor, wherein the transmitting antenna circuit generates an electromagnetic field for wireless transfer of power and periodically generates a modulated time-varying signal for the transfer of data;

    a receiving unit wirelessly coupled to the transmitting unit, the receiving unit having a receiving antenna circuit having a second resonant frequency and a high quality factor, wherein the receiving antenna circuit detects the electromagnetic field generated by the transmitting unit and generates an induced electric current, and further detects the modulated time-varying signal periodically generated by the transmitting unit; and

    ,a load coupled to the receiving unit, wherein the induced electric current powers the load, further wherein the load includes a demodulation circuit for demodulating the time-varying signal received by the receiving unit.

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