Patent ID: 8471542

Claim:
A power control system, comprising: a first stage voltage converter adapted to receive an input voltage having a first value and to output a second voltage having a second value; a second stage voltage converter adapted to receive the second voltage output from the first stage voltage converter and to output a third voltage having a third value for use by a load device, the second stage voltage converter including a plurality of phases; a processor configured to receive operational information from the first and second voltage converters and to dynamically vary each of the second voltage output by the first stage voltage converter, a drive voltage of the second stage voltage converter, and a number of active phases of the second stage voltage converter; and a sensor coupled to the first and second stage voltage converters and the processor, the sensor being configured to receive an input power value of the first stage voltage converter, an output power value of the first stage voltage converter, an output power value of the second stage voltage converter, and temperature information for the second stage voltage converter, the sensor being further configured to provide information received from the first and second stage voltage converters to the processor, wherein the processor is configured to perform open loop control on the first and second stage voltage converters.