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System and method for generating radio frequency energy

  • US 20070225698A1
  • Filed: 03/21/2006
  • Published: 09/27/2007
  • Est. Priority Date: 03/21/2006
  • Status: Active Grant
First Claim
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1. An electrosurgical generator comprising:

  • a power supply operable to generate a DC voltage;

    a first parallel inductor-capacitor circuit configured to be driven by a first signal at a first predetermined frequency;

    a second parallel inductor-capacitor circuit configured to be driven by a second signal at the first predetermined frequency phase-shifted 180°

    ; and

    a series inductor-capacitor resonant circuit operably connected in series with a primary winding of a transformer, the first and second parallel inductor-capacitor circuits operably connected to the transformer, the first parallel inductor-capacitor circuit being configured to generate a positive half sine wave from the DC voltage and the second parallel inductor-capacitor circuit being configured to generate a 180°

    phase-shifted positive half sine wave from the DC voltage to generate a full sine wave in a secondary winding of the transformer.

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