Scalable structure for connection of power supply units
AssigneeTDK-Lambda Corporation
InventorsJakob Vatariu, Arie Lev Girshson
Life of this patent
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Abstract
The invention relates to a master-slave power supply system, which comprises: (a) a master power supply unit having an output power port; (b) one or more slave units, each unit having its own power port; wherein the output power port of the master unit, as well as the output ports of all the slave units are connected in parallel; and wherein a bridging cable connects between the master unit and a first slave unit, and additional bridging cables connect respectively each of the slave units to a next one, until a last slave unit, and wherein at least a voltage feedback signal is conveyed from master unit to all the slave units in parallel over said bridging cables.
Claims19
A master-slave power supply system, which comprises:
- (a) a master power supply unit having an output power port;
- and
- (b) one or more slave units, each of the one or more slave units having its own output power port,
- wherein the output power port of the master power supply unit, as well as the output port of all the one or more slave units are connected in parallel,
- wherein a bridging cable connects between the master power supply unit and a first slave unit, and additional bridging cables connect respectively each of the one or more slave units to a next one, until a last slave unit,
- wherein each of the one or more slave units is operable in either a current feedback mode or in a voltage feedback mode,
- wherein at least a voltage feedback signal is conveyed from the master power supply unit to all the one or more slave units in parallel over the additional bridging cables,
- wherein each of the one or more slave units further comprises decision circuitry for dynamically and autonomously selecting, using an internal controller, whether to operate in the current feedback mode or in the voltage feedback mode.
Dependencies are inferred from the claim text.