Patent ID: 7238181

Claim:
High-frequency generator for high-frequency surgery, comprising: a power generator for supplying high-frequency energy at a base frequency; a sampling tap for receiving the value of a variable to be measured, corresponding to an output voltage or an output current of said power generator; and said power generator having at least one input for setting a magnitude of an electrical output parameter selected from an output voltage, an output current, and an output power; wherein a standardizing circuit is provided for determining a standardizing factor k in such manner that the measured variable or a proportion of the basic frequency in the measured variable, multiplied by the standardizing factor, corresponds to a given desired value; a first filter is provided for selecting harmonic frequency components above a base frequency from the variable to be measured; means are provided for scaling the harmonic frequency components with the standardizing factor k; and for controlling the power generator, a signaling of scaled harmonic frequency components to the power generator by means of the input is provided in such manner that with an increase of an amplitude of the scaled harmonic frequency components, the output voltage, the output current or the output power of the power generator is reduced.