Load balancing reverse power supply
AssigneeMicrosemi Corporation
InventorsArkadiy Peker, Daniel Feldman, Shahar Feldman, Roni Blaut
Life of this patent
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Abstract
A power supply unit includes a plurality of the interface ports and a plurality of power delivery units, each coupled to one of the interface ports and configured to extract power from data signals communicated over the interface ports by remote devices. A sharing circuit is coupled to each of the power delivery units for generating a power supply voltage from the power extracted from the data signals. A controller is configured to generate a communication line power loss estimate for each of the interface ports and configure the power delivery units to balance amounts of power supplied by each of the remote devices based on the communication line power loss estimates.
Claims38
A power supply unit, comprising:
- a plurality of interface ports;
- a plurality of power delivery units, each coupled to one of the interface ports and configured to extract power from data signals communicated over the interface ports by remote devices;
- a sharing circuit coupled to each of the power delivery units for generating a power supply voltage from the power extracted from the data signals;
- and
- a controller configured to generate a communication line power loss estimate for each of the interface ports and configure the power delivery units to balance amounts of power supplied by each of the remote devices based on the communication line power loss estimates.
A method, comprising:
- extracting power from data signals communicated over a plurality of interface ports by remote devices;
- generating a power supply voltage from the combined power extracted from the data signals;
- generating a communication line power loss estimate for each of the interface ports;
- and
- balancing amounts of power supplied by each of the remote devices based on the communication line power loss estimates.
A power supply unit, comprising:
- a plurality of interface ports;
- a power delivery unit configured to extract power from a data signal communicated over at least one of the interface ports by remote devices;
- logic configured to selectively couple one of the interface ports to the power delivery unit;
- and
- a controller configured to generate a communication line power loss estimate for each of the interface ports and control the logic to balance amounts of power supplied by each of the remote devices based on the communication line power loss estimates.
Dependencies are inferred from the claim text.