Patent ID: 8755200

Claim:
A circuit arrangement for smoothing ripple voltages in voltage signals generated by at least one AC to DC converter, said circuit arrangement comprising: a transformer having primary windings and secondary windings; a first synchronous two switch forward converter circuit operatively coupled to the primary windings; a second two switch forward converter circuit operatively coupled to the secondary windings; a high voltage storage device coupled to the primary windings; a high voltage generator connected to the high voltage storage device; a first single controller having one output terminal operatively coupled to control terminals of devices within the first synchronous two switch forward converter circuit, wherein said first single controller correlating predefined voltage signals to generate a first control signal to simultaneously drive said devices within the first synchronous two switch forward converter circuit; and a second controller having an output connected to the second two switch forward converter circuit, said second controller correlating predefined voltage signals to generate a second control signal to drive the second two switch forward converter circuit wherein output voltage signal from said secondary winding smooth voltage ripples in the voltage signal provide by said at least one AC to DC converter and holdup output voltage if said at least one AC to DC converter is unable to do so.