Patent ID: 7782644

Claim:
A power supply, comprising: a power source having a first power source output and a second power source output, each 180 degrees out of phase from the other; and a plurality of drivers connected to said first and second power source outputs, at least one of said plurality of drivers comprising: a full bridge network comprising a first switch, a second switch, a third switch, a fourth switch, a bridge network output and a second bridge network output, said first switch connected between said first power source output and said bridge network output, said second switch connected between said bridge network output and a voltage reference node, said bridge network further comprising at least one control input connected to said second switch, said third switch connected between said second power source output and said second bridge network output, said fourth switch connected between said second bridge network output and said voltage reference node, said bridge network further comprising at least one second control input connected to said fourth switch, said power source comprising an alternating current source, said at least one of said plurality of drivers being an envelope-driven driver wherein a waveform at said bridge network output tracks a waveform of said alternating current source.