Patent ID: 7066933

Claim:
High-frequency generator with adjustable limitation of the effective output power for HF surgical cutting of human or animal tissue, comprising: a device for finding the mean value of the effective output power of the HF generator, a comparison device for comparing the mean value thus found for the effective output power with a specified maximal mean value of the effective output power of the HF generator, a modulation device for modulating the output voltage of the HF generator with a modulation signal comprising pulses, such that a control device for controlling the modulation device alters the duration of the pulses in the modulation signal and/or the duration of the intervals between the pulses, in order to keep constant the peak value of the output voltage or the intensity of an arc that is formed between an electrode connected to the HF generator and the tissue, whenever the mean value found for the effective output power is greater than the maximal mean value of the effective output power.