DC power supply for high power applications

Claim 1

A DC power supply comprising: a plurality of DC to DC converters, each converter converting a multiple phase AC potential to a DC output potential containing an undesired AC component, each DC to DC converter comprising a DC to AC inverter for converting a DC input into a multiple phase output with each phase of an inverter being phase displaced with respect to a phase of another inverter by the angle θ, the time reference controlling on-off switching points of inverter switches contained within the inverter; means for combining the DC output potential of each converter into a combined DC output potential and arithmetically cancelling the undesired AC component; a controller for producing a time reference applied to each of the converters to set an angular relationship of each of the phases of each converter with respect to the applied time reference, the time reference of each of the converters being spaced apart from a time reference of another of the converters by an angle ##EQU5## wherein n is equal to 2 x where x is an integer and n is the number of converters; a plurality of multiple phase voltage multipliers, a different multiplier being coupled to the multiple phase output of each inverter for producing a combined DC multiplier output potential greater in magnitude than the magnitude of the multiple phase input to the multiplier; and wherein the means for combining combines the DC multiplier output potentials of the multiple phase voltage multipliers into the combined DC output potential.