Patent ID: 7872539

Claim:
A resonant waveform generating circuit comprising: a first switching device coupled between a first node and a second node, said first switching device being responsive to a first control signal; a first inductive element coupled between said first node and a voltage source; a first branch resonator circuit coupled between said first node and said second node; a second switching device coupled between a third node and said second node, said second switching device being responsive to a second control signal; a second inductive element coupled between said third node and said voltage source; a second branch resonator circuit coupled between said third node and said second node; wherein the voltage between said first node and said second node swings between zero and a predetermined maximum value and the voltage between said third node and said second node swings between zero and said predetermined maximum value; wherein when said first switching device is off, the signal at said first node consists of a superposition of harmonically related sine waves and when said second switching device is off, the signal at said third node consists of a superposition of harmonically related sine waves; and wherein said first node is coupled to said second control signal and said third node is coupled to said first control signal.