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Linear power control with PSK regulation

  • US 6,309,386 B1
  • Filed: 10/06/1998
  • Issued: 10/30/2001
  • Est. Priority Date: 10/06/1997
  • Status: Expired due to Fees
First Claim
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1. A method for power control in an electro-surgical instrument including a driver, and at least one electrode and a ground for delivery of power in the form of a first oscillating signal to a surgical site, and the method for power control comprising the acts of:

  • computing differences between a target power and an actual power delivered to the at least one electrode to establish an amount by which to increase and to decrease the power in the first oscillating signal; and

    modulating a driver signal generated by the driver to increase and to decrease an integer number of whole wavelengths of the driver signal to produce the first oscillating signal, responsive to said computing act.

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