CONTROLLED CONCURRENT UTILIZATION OF MULTIPLE POWER SUPPLIES

摘要

Technology for concurrently powering equipment from multiple power sources, and the control thereof is disclosed. One example implementation of the technology includes a first power supply that powers equipment from a first power source and a second power supply that also powers the equipment from a second power source while the equipment is being powered by the first power supply. A target direct current (DC) output voltage of at least one of the power supplies is changed, thereby changing a ratio of the power being drawn from the first power supply to the power being drawn from the second power supply.

主权项

1. A system, the system comprising:
a first set of power supplies powered from a first power source, wherein the first set of power supplies is adapted to provide direct current (DC) power, based on a first target DC output voltage, to a DC power bus; a second set of power supplies powered from a second power source, wherein the second set of power supplies is adapted to provide DC power to the DC power bus, based on a second target DC output voltage, while the first set of power supplies is also providing power to the DC power bus; a plurality of processing units that are powered from the DC power bus; and a power system controller that is adapted to control instantaneous power draw from the first power source relative to instantaneous power draw from the second power source via adjustment of the first target DC output voltage and/or adjustment of the second target DC output voltage.