Hewlett-Packard Development Company, L.p.

Christopher Woodbury

Robert C Brooks

Shaheen Saroor

Angus Liu

Michael R Durham

An example power source device includes a universal serial bus interface to couple to a power sink device, a power supply interface to couple to a power supply, a power measurement controller to measure a total power consumption of the power sink device and the power source device, a power contract manager to select a power delivery contract for the power sink device based on the total power consumption, a power supply rating of the power supply and a previous power delivery contract, and a power delivery controller to deliver power to the power sink device according to the selected power delivery contract.

Power source devices for power delivery contract selections

In some examples, a non-transitory machine-readable medium can include instructions executable by a processing resource to: monitor system power for a computing system that includes a first computing component type and a second computing component type, determine a power event type for the computing system based on the monitored system power, and alter a power limit of the second computing component type by a predetermined increment based on the power event type while maintaining a power limit of the first computing component type when the second computing component type is a sub-system of the computing system.

Power limit alterations of component types

In one example in accordance with the present disclosure, a power management device is described. The power monitoring device includes an input line to receive input power information from a power supply device. The input power information is indicative of a level of input power from the power supply device. A controller of the power monitoring device determines a scaling amount of the input power information based on a power rating of the power supply device. A programmable scaling device scales the input power information based on the scaling amount to generate output information and an output line passes the output information to a set of recipient devices.

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Spring, TX, United States of America

Christopher Woodbury