Patent ID: 7869234

Claim:
A poly-phase AC/DC active power converter to convert AC power from a poly-phase variable frequency power source into DC power, comprising: an H-bridge converter maintaining a capacitor at its output, said converter adapted to receive each of the phases of AC power source at its input through respective line reactors inline therewith; and a controller coupled to said H-bridge converter to control said converter in accordance with a control structure, wherein upon the initial powering of said H-bridge, said controller enters a voltage boost mode, such that said line reactors are charged and discharged into said capacitor to raise its voltage above that of said power source, to generate a gain value used by said control structure to control the current consumed from the power source, so as to maintain a constant output voltage during the start up of a normal AC/DC conversion mode, so as to reduce an inrush of current during the conversion of AC power into DC power.