#$%^&*AU2007201628B220130418.pdf#####SYSTEM AND METHOD FOR GENERATING RIO FREQUENT ENRGY ABSTRACT An electrosurgical generator (10) is disclosed. The electrosurgical generator (10) includes a power supply (28) for generating a DC voltage. The electrosurgical generator (10) also includes a first parallel inductor-capacitor circuit (45) being driven by a first signal at a first predetermined frequency and a second parallel inductor-capacitor circuit 5 (47) driven by a second signal at the first predetermined frequency phase shifted 180*. The electrosurgical generator (10) further includes a series inductor-capacitor resonant circuit (57) operably connected in series with a primary winding (60) of a transformer (62). The first and second parallel inductor-capacitor circuits (45, 47) are operably connected to the transformer (62), such that the first inductor-capacitor circuit (45) generates a positive half to sine wave and the second inductor-capacitor circuit (47) generates a 1800 phase-shifted positive half sine wave to generate a full sine wave in a secondary winding (64) of the transformer (62).2/5 ;i j LLL, CE% C')l cod~ c.~48/5 N. Lg~ co a, CD Cd a., 0'.- ~r O)CO (Nj ~coOCiZk~ a, ____ -I N ci K uqs K 7N.- 10 0 '7 N.+ ~0-