#$%^&*AU2006228041B220140403.pdf#####Abstract An electrosurgical generator (20) has a control system (21) formed by an array of logic gates programmed to execute mathematical algorithms for regulating at least one parameter of output power, output voltage (23) or output current (24) of an output 5 electrosurgical signal (22) in a closed loop response to sensed values of the output voltage (23) and the output current (24).