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US 11,114,936 B2Granted
Adjusting output voltage of powered device ports
AssigneeHewlett Packard Enterprise Development LP
InventorsDeven Patel, Yu Liu, Sanh Huynh
Life of this patent
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Abstract
An example system can determine a power consumption of each of a first and a second powered device ports, determine an output voltage demand of each of the first and the second powered device ports based on the determined power consumptions, and based on the output voltage demand, adjust an output voltage to each of the first and the second powered device ports via the power controller.
Claims19
A system, comprising:
- a first powered device port communicatively coupled to a power controller;
- a second powered device port communicatively coupled to the power controller, wherein a first power sourcing equipment (PSE) device associated with the first powered device port has a different power classification than a second PSE device associated with the second powered device port;
- and
- a non-transitory machine readable medium communicatively coupled to the first and the second powered device ports and comprising instructions to share output voltages between the first powered device port and the second powered device port, wherein the instructions are executable by a processing resource to:
- determine a power consumption of each of the first and the second powered device ports;
- determine an output voltage demand of each of the first and the second powered device ports based on the determined power consumptions;
- and
- based on the output voltage demand, prioritize which of the first or the second powered device ports supplies more power and adjust an output voltage to each of the first and the second powered device ports via the power controller to a nonzero value.
5 more elements
A system, comprising:
- a first powered device port with a first output voltage communicatively coupled to first powered device port controller to determine and monitor a power load on the first powered device port;
- a second powered device port with a second output voltage lower than the first output voltage and communicatively coupled to a second powered device port controller to determine a power load on the second powered device port, wherein a first power sourcing equipment (PSE) device associated with the first powered device port has a different power classification than a second PSE device associated with the second powered device port;
- a droop circuit communicatively coupled to the first powered device port to droop an output voltage of the first powered device port to approximately a same output voltage of the second powered device port;
- and
- a controller communicatively coupled to the first and the second powered device ports to:
- combine the drooped output voltage of the first powered device port and the output voltage of the second powered device port;
- prioritize which of the first or the second powered device ports supplies more power;
- and
- subsequently adjust the output voltages of the first powered device port and the second powered device port to a nonzero value in response to a change to a load of the system.
6 more elements
A method, comprising:
- receiving a first power load at a first power over Ethernet (PoE) port and a second power load at a second PoE port within an access point;
- prioritizing which of the first or the second PoE ports supplies more power;
- in response to the first power load increasing, automatically drooping an output voltage associated with the first PoE port to approximately match an output voltage associated with the second PoE port using a droop circuit communicatively coupled to the first PoE port;
- and
- combining the drooped output voltage associated with the first PoE port with the output voltage associated with the second PoE port, wherein a first power sourcing equipment (PSE) device associated with the first POE port has a different power classification than a second PSE device associated with the second PoE port, the dropped output voltage associated with the first PoE port and the output voltage associated with the second PoE port being nonzero.
2 more elements
Dependencies are inferred from the claim text.