Patent ID: 8574187

Claim:
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.