Adaptive power providing device and method for providing power

1. A power providing device arranged for providing power to multiple power receiving devices, wherein the power providing device is a power source equipment arranged to provide the power by power over Ethernet and comprises a processor arranged to:

detect a power receiving device and to perform a power negotiation with the power receiving device,

monitor the power consumption of each power receiving device, and

at least temporarily suspend power provision to a power receiving device in case the power consumption of said power receiving device exceeds a power budget allotted in the power negotiation to said power receiving device,

wherein the processor is further configured to increase the power budget allotted to said power receiving device in response to the power consumption of said power receiving device exceeding a predetermined consumption threshold value;

wherein the processor is configured to increase the power budget only in case a rate of change of the power consumption of said power receiving device is less that a predetermined rate threshold value.

2. The power providing device according to claim 1 , wherein the processor is configured to increase the power budget only in case a total of power budgets allotted to the multiple power receiving devices is less than a total of power providable by the power providing device to the multiple power receiving devices.

3. The power providing device according to claim 2 , wherein the processor is further arranged for determining, based on a rate of change of the power consumption of said power receiving device and a difference between the total of power budgets allotted to the multiple power receiving devices, and the total of power providable by the power providing device to the multiple power receiving devices, a time during which the power budget may be increased,

wherein the power providing device further comprises an output unit for outputting a signal indicative of said determined time.

4. The power providing device according to claim 1 , wherein the processor is further arranged for reducing a power budget allotted to at least one different power receiving device upon or prior to increasing the power budget allotted to said power receiving device.

5. The power providing device according to claim 1 , wherein the processor is further arranged for determining a difference between an original power budget of a power receiving device and the increased power budget, wherein the power providing device further comprises an output unit for outputting a signal indicative of said difference exceeding a predetermined difference threshold value.

6. The power providing device according to claim 1 , wherein the processor is further is arranged for determining a difference between an original power budget of a power receiving device and the increased power budget, wherein the power control unit is configured to increase the power budget only in case the difference between the original power budget and the increased power budget is less than a predetermined range value, the predetermined range value being set either in absolute terms or based on a ratio of the original power budget.

7. The power providing device according to claim 2 , wherein, when the processor is not allowed to increase the power budget, the processor is, in addition to at least temporarily suspending power provision to a power receiving device, further configured to provide a signal indicative of the processor being not allowed to increase the power budget.

8. The power providing device according to claim 1 , wherein the processor is further arranged, in response to a request and/or upon meeting a predetermined condition, for setting the power budgets allotted to at least two of the multiple power receiving devices based on a respective current power consumption, of said power receiving devices.

9. The power providing device according to claim 1 , further comprising:

a memory, wherein the processor is configured to store information related to increasing the power budget into the memory.

10. A method of providing power by a power providing device to multiple power receiving devices, wherein the power providing device is a power source equipment arranged to provide the power by power over Ethernet, the method comprising the steps of:

detecting a power receiving device and performing a power negotiation between the power providing device and the power receiving device,

monitoring, by the power monitoring device, the power consumption of each power receiving device,

at least temporarily suspending, by the power providing device, power provision to a power receiving device in case the power consumption of said power receiving device exceeds a power budget allotted in the power negotiation to said power receiving device, and

increasing, by the power providing device, the power budget allotted to said power receiving device in response to the power consumption of said power receiving device exceeding a predetermined consumption threshold value, wherein the power budget is increased only in case a rate of change of the power consumption of said power receiving device is less that a predetermined rate threshold value.

11. A software product for controlling the provision of power from a power providing device to multiple power receiving devices, the software product comprising a non-transitory medium storing instructions configured to:

detect a power receiving device;

monitor the power consumption of each power receiving device;

at least temporarily suspend power provision to a power receiving device in case the power consumption of said power receiving device exceeds a power budget allotted in the power negotiation to said power receiving device; and

increase the power budget allotted to said power receiving device in response to the power consumption of said power receiving device exceeding a predetermined consumption threshold value, wherein the power budget is increased only in case a rate of change of the power consumption of said power receiving device is less that a predetermined rate threshold value.