An electrosurgical generator for supplying RF power to an electrosurgical instrument for cutting or vaporising tissue has an RF output stage (42) with an RF power bridge (Q1, Q2, Q3, Q4), a pair of output lines (74) and a series-resonant output network (48). The output impedance of the output stage (42)...http://www.google.se/patents/US7211081?utm_source=gb-gplus-sharePatent US7211081 - Electrosurgical generator
