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System and method of an electrosurgical controller with output RF energy control

  • US 8,574,187 B2
  • Filed: 03/09/2009
  • Issued: 11/05/2013
  • Est. Priority Date: 03/09/2009
  • Status: Active Grant
First Claim
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1. An electrosurgical controller comprising:

  • a wand connector disposed on an outer surface of the electrosurgical controller, the wand connector configured to couple to a connector of an electrosurgical wand, and the wand connector comprising a plurality of electrical pins;

    a voltage generator comprising;

    an alternating current (AC) to direct current (DC) (AC-to-DC) conversion circuit;

    a primary winding of a transformer coupled to the AC-to-DC conversion circuit; and

    a secondary winding of the transformer, the secondary winding defines a first active terminal coupled to a first electrical pin of the wand connector and a second active terminal coupled to a second electrical pin of the wand connector;

    the electrosurgical controller is configured to simultaneously provide radio frequency (RF) energy having a first voltage to the first electrical pin and RF energy having a second voltage to the second electrical pin, wherein the first voltage is higher than the second voltage.

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