Patent ID: 7773395

Claim:
A power system for providing an output voltage having an output power ground from an input voltage having an input power ground, the power system comprising, converters receiving a series of floating voltages, the floating voltages extending in voltage potential sequence between the input voltage and an input power ground, the floating voltages floating with respect to the output power ground, each of the converters receiving two consecutive ones of the floating voltages, the converters having converter outputs connected in parallel for providing the output voltage, the converters controlled by control voltages for controlling conversion between the two consecutive ones of the floating voltages and a respective one of the converter outputs, input isolators for respectively receiving the control voltages and controlling the conversion of the converters between the floating voltages and the converter outputs, a distribution controller for receiving the floating voltages and generating the control voltages from the floating voltages and a distribution voltage, the distribution voltage generated from the input voltage for power distribution among the converters, and wherein the distribution controller comprises, an error generator for receiving the floating voltages and generating error voltages from the distribution voltage and the floating voltages, and a regulation controller for receiving the error voltages and generating the control voltages from the error voltages and a regulation voltage.