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Methods and systems for providing a power signal to an implantable device

  • US 8,099,169 B1
  • Filed: 05/18/2010
  • Issued: 01/17/2012
  • Est. Priority Date: 07/31/2002
  • Status: Active Grant
First Claim
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1. A method comprising:

  • receiving, by a wide dynamic range power amplifier, a carrier signal, a data signal, and a control signal indicating one of a low power mode and a high power mode;

    generating, by the wide dynamic range power amplifier, a first modulated signal based on the carrier signal and the data signal;

    generating, by the wide dynamic range power amplifier, a second modulated signal based on the first modulated signal and the control signal, the second modulated signal being set to be equal to zero when the control signal indicates the low power mode and being set to be equal to a substantially 180-degree-phase shifted version of the first modulated signal when the control signal indicates the high power mode;

    generating, by the wide dynamic range power amplifier, a first push-pull output signal based on the first modulated signal;

    generating, by the wide dynamic range power amplifier, a second push-pull output signal based on the second modulated signal;

    combining, by the wide dynamic range power amplifier, the first and second push-pull output signals to generate a primary voltage substantially equal to a voltage of the first push-pull output signal when the control signal indicates the low power mode and twice the voltage of the first push-pull output signal when the control signal indicates the high power mode; and

    generating, by the wide dynamic range power amplifier, a power signal based on the primary voltage.

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