×

Power generating and control apparatus for the treatment of tissue

  • US 9,277,955 B2
  • Filed: 04/11/2011
  • Issued: 03/08/2016
  • Est. Priority Date: 04/09/2010
  • Status: Active Grant
First Claim
Patent Images

1. A power generating apparatus for treatment of tissue having a circuit comprising:

  • a direct digital synthesizer (DDS) operatively coupled to a power amplifier;

    a power output set point controller providing a signal;

    a peak effective power sensor receiving voltage and current feedback measured during delivery of power from the circuit to a power delivery target, the peak effective power sensor providing a signal based on the feedback; and

    a PID controller, operatively coupled to receive the signals from the power output set point controller and the peak effective power sensor, and operatively coupled to direct a modulating voltage signal to the power amplifier such that output of power from the circuit is maintained within a range about a power output set point in response to the signal from the peak effective power sensor, wherein the output of power from the circuit is continuously maintained during a treatment period,wherein the power amplifier is comprised of a variable gain amplifier and a linear power amplifier operatively coupled in series.

View all claims
  • 3 Assignments
Timeline View
Assignment View
    ×
    ×