Patent ID: 8710903

Claim:
An apparatus comprising: a switched capacitor drive circuit having a switch network including a plurality of switches connected in series across a voltage and a capacitor network including a plurality of capacitors connected in series across the voltage to divide the voltage into a plurality of different voltage outputs, each capacitor of the plurality of capacitors being coupled across a source and a drain of two series-connected switches of the plurality of switches, a first of the two switches of each of the two series-connected switches constituting a top switch path and the second of the two switches of each of the two series-connected switches constituting a bottom switch path; a plurality of level shifters each coupled to a gate of each switch of the switched capacitor drive circuit to couple alternating current into the respective gate; a positive phase, non-inverted low side driver coupled to each level shifter to drive the gates of the top switch path through the respective level shifters; and a negative phase, inverted low side driver coupled to each level shifter to drive gates of the bottom switch path through the respective level shifters.