Invention Grant
US08734438B2 Circuit and method for reducing stored energy in an electrosurgical generator 有权
用于减少电外科发生器中储存能量的电路和方法

  • Patent Title: Circuit and method for reducing stored energy in an electrosurgical generator
  • Patent Title (中): 用于减少电外科发生器中储存能量的电路和方法
  • Application No.: US11256374
    Application Date: 2005-10-21
  • Publication No.: US08734438B2
    Publication Date: 2014-05-27
  • Inventor: Robert Behnke
  • Applicant: Robert Behnke
  • Applicant Address: CH
  • Assignee: Covidien AG
  • Current Assignee: Covidien AG
  • Current Assignee Address: CH
  • Main IPC: A61B18/12
  • IPC: A61B18/12
Circuit and method for reducing stored energy in an electrosurgical generator
Abstract:
A circuit for discharging stored energy in an electrosurgical generator. The circuit includes a pulse width modulator for controlling a high voltage power supply, an error signal generating circuit configured for delivering an error signal as a difference between an output signal voltage with a feedback voltage generated by the high voltage power supply. The error signal is transmitted to the pulse width modulator. The circuit further includes a switching circuit configured to switch in a load in parallel with an output of the high voltage power supply when the error signal is lesser than a first predetermined threshold to discharge the output.
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