Patent ID: 8465483

Claim:
A circuit for supplying output electrodes of a radiofrequency device applicable to living tissues, said circuit comprising: a transformer having a primary winding, a secondary winding, and a turn ratio of 1:N, where N is a real number; a resonant serial filter connected to the primary winding of the transformer having an inductor L S1 connected in series with a capacitor C S1 ; and a resonant parallel filter connected to the secondary winding of the transformer having an inductor L p connected in parallel with a capacitor C P ; wherein the resonant serial filter and the resonant parallel filter allow a fundamental signal of an input signal, which includes harmonics, to simultaneously pass through and exponentially attenuate the harmonics as a frequency of said harmonics increases, and wherein an output frequency of said circuit is varied such that a combined impedance of a plurality of output electrodes connected to the circuit, and living tissue in contact with the output electrodes matches an impedance of the circuit.