A circuit, for monitoring and controlling parameters of an electrosurgical unit, ESU, relative to load and the RF energy, has a load responsive output sensing circuit that measures the ESU load. A signal modifier, attached to the sensing circuit enhances the signals measured and transmits them to a buffer....http://www.google.fr/patents/US5370645?utm_source=gb-gplus-shareBrevet US5370645 - Electrosurgical processor and method of use