Patent ID: 7715215

Claim:
A method of controlling an AC-to-DC power supply assembly fed by a three-phase AC source, the method comprising: determining whether the AC-to-DC power supply assembly comprises greater than three active, single-phase power regulators feeding a common load, with multiple single-phase power regulators of the active, single-phase power regulators being connected in parallel across a common phase of the three-phase AC source; summing currents provided by the active, single-phase power regulators to the common load, the summing being responsive to determining that there are greater than three active, single-phase power regulators in the AC-to-DC power supply assembly being powered by the three-phase AC source and feeding the common load; and ascertaining whether the summed current is less than a predefined threshold, and if so, operating the AC-to-DC power supply assembly in a line balance mode to maintain power drawn on the three phases of the three-phase AC source in balance, and if greater than the predefined threshold, operating the AC-to-DC power supply assembly in a maximize power mode wherein power is provided by the AC-to-DC power supply assembly to the common load without maintaining power drawn on the three phases of the three-phase AC source in balance.