Power consumption control of computing devices

1. An apparatus comprising:

a computing device to receive a charging current from a power adapter, the computing device comprising a processor and memory coupled to the processor, the memory storing instructions that upon execution by the processor cause the processor to:

compute, by the processor, an average of the charging current received over a time period;

based on the average of the charging current and a length of the time period, determine, by the processor, if a change in surface temperature of the power adapter over the time period is beyond a threshold; and

control, by the processor, power consumption of the computing device based on the determination.

2. The apparatus of claim 1 , wherein, to perform the determination, the processor is to utilize a dependence model indicating dependence of the change in surface temperature on the average of the charging current and the length of the time period.

3. The apparatus of claim 2 , wherein, to perform the determination, the processor is to estimate the change in surface temperature using the dependence model.

4. The apparatus of claim 1 , wherein, to control the power consumption based on the determination, the processor is to decrease the power consumption of the computing device if an increase in surface temperature is determined to be beyond the threshold.

5. The apparatus of claim 1 , wherein, to decrease the power consumption, the processor is to throttle a processor of the computing device.

6. An apparatus comprising:

a power adapter; and

a computing device comprising a processor and memory coupled to the processor, the memory storing instructions that upon execution by the processor cause the processor to:

monitor, by the processor, charging current received by the computing device from the power adapter;

determine, by the processor, if an increase in surface temperature of the power adapter over a time period is beyond a threshold based on a length of the time period and an average of the charging current over the time period; and

decrease, by the processor, power consumption of the computing device if the increase in surface temperature is determined to be beyond the threshold.

7. The apparatus of claim 6 , wherein, to determine if the increase in the surface temperature is beyond the threshold, the processor is to:

estimate the increase in the surface temperature based on the average of the charging current and the length of the time period; and

compare the estimated increase in the surface temperature with the threshold.

8. The apparatus of claim 7 , wherein the memory is to store a dependence model indicating dependence of the increase in surface temperature on the average of the charging current and the length of the time period, and wherein the processor is to utilize the dependence model to estimate the increase in the surface temperature.

9. The apparatus of claim 6 , wherein

the processor is to determine if an increase in surface temperature of the power adapter over a subsequent time period is beyond the threshold based on a length of the subsequent time period and an average of the charging current over the subsequent time period; and

the processor is to increase power consumption of the computing device if the increase in surface temperature is determined to be less than the threshold.

10. The apparatus of claim 6 , wherein the computing device comprises a processing resource and wherein, to decrease the power consumption, the processor is to throttle the processing resource.

11. A non-transitory computer-readable medium comprising instructions, the instructions being executable by a processing resource to:

monitor, by the processing resource, a charging current received by a computing device from a power adapter over a time period;

estimate, by the processing resource, a change in surface temperature of the power adapter over the time period based on the charging current received over the time period and length of the time period; and

control, by the processing resource, power consumption of the computing device based on the estimated change in surface temperature.

12. The non-transitory computer-readable medium of claim 11 , wherein, to estimate the change in surface temperature, the instructions are further executable by the processing resource to utilize an average of the charging current received over the time period.

13. The non-transitory computer-readable medium of claim 12 , wherein, to estimate the change in surface temperature, the instructions are further executable by the processing resource to utilize a dependence model indicating dependence of the change in surface temperature on the average of the charging current and the length of the time period.

14. The non-transitory computer-readable medium of claim 11 , wherein the instructions are executable by the processing resource to control the power consumption of the computing device based on a comparison of the estimated change in the surface temperature with a threshold.

15. The non-transitory computer-readable medium of claim 14 , wherein, to control the power consumption, the instructions are further executable by the processing resource to decrease the power consumption of the computing device if an estimated increase in the surface temperature is beyond the threshold.