Patent ID: 8912771

Claim:
A power regulator system comprising: at least one power supply to convert a DC rail voltage to a DC load voltage, the DC load voltage being less than the DC rail voltage and being provided to power at least one electronic component; and a power rail regulator to generate the DC rail voltage based on an input voltage and to regulate a magnitude of the DC rail voltage to vary between a minimum voltage magnitude and a maximum voltage magnitude and to further regulate a variable magnitude of an output current, the DC rail voltage and the output current being regulated based on load requirements associated with the at least one electronic component, wherein the power rail regulator to regulate the DC rail voltage and the output current in N regions across a range of output power, where N is an integer greater than one, the regions defined as alternating between a substantially constant magnitude of the DC rail voltage with a variable magnitude of the output current and a substantially constant magnitude of the output current with a variable magnitude of the DC rail voltage, a first of the N regions defined as the DC rail voltage having the substantially constant magnitude that is approximately equal to the minimum voltage magnitude at a first range of the output power from zero to a first power magnitude, and a last of the N regions defined as the DC rail voltage having the substantially constant magnitude that is approximately equal to the maximum voltage magnitude at a second range of the output power from a second power magnitude to a maximum power magnitude.