Electrosurgical generator, electrosurgical system, and method of operating an electrosurgical generator

A method of operating an electrosurgical generator, wherein the method comprising:

• generating an AC output voltage and supplying the AC output voltage to outputs of the electrosurgical generator, wherein a maximum AC output voltage value is predefined for the AC output voltage;
• determining a load present at the outputs and comparing the load with a threshold value, which is defined such that a load falling below this threshold value indicates occurrence of a vaporization phase;
• determining a DC offset in the AC output voltage present at the outputs,
• wherein, as soon as the threshold value is exceeded and a DC offset is not detected in the AC output voltage present at the outputs, a maximum AC output voltage value is preset such that the maximum AC output voltage is higher than a preset maximum output voltage value, the preset maximum output voltage value being preset if a DC offset is detected;
• and
• controlling the AC output voltage based on the maximum AC output voltage value;
• establishing a vapor bubble as part of a vaporization phase during an initial phase;
• creating arcing as part of an ignition phase during the initial phase;
• and
• during the initial phase, applying the maximum AC output voltage value;
• and
• if the DC offset is not detected, applying the preset maximum output voltage value that is higher than the maximum AC output voltage value.