Power distribution controller
AssigneeMicrosoft Technology Licensing, LLC
InventorYazan Aldehayyat
Life of this patent
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Abstract
The described technology includes a power distribution controller configured to control functioning of a first power source configured to supply power to a first component and to a second component and a second power source configured to supply power to the second component. The power distribution controller sets an upper limit of current from the first power source to the second component based on average level of charge at the second power source over a predetermined amount of time. The power distribution controller reduces the amount of power loss due to spikes in current from the first power source to the second component.
Claims19
An apparatus comprising:
- a first power source configured to supply power to a first component and to a second component;
- a second power source configured to supply power to the second component;
- and
- a power distribution controller configured to set an upper limit of current from the first power source to the second component based on average level of charge at the second power source over a predetermined amount of time,
- wherein the power distribution controller is further configured to set the upper limit of current supplied from the first power source to the second component such that current transferred between the first component and the second components is kept substantially equal to a current corresponding an average power consumption of the second component.
A method comprising:
- determining an average level of charge at a second power source over a predetermined amount of time, the second power source being configured to supply power to a second component;
- determining an upper limit of current from a first power source to the second component based on the average level of charge at a second power source over a predetermined amount of time, the first power source being configured to supply power to a first component;
- and
- limiting current drawn from the first power source to the second component to the upper limit of current from a first power source to the second component.
A power distribution controller comprising:
- a memory;
- one or more processing units;
- and
- an upper limit determination module stored in the memory and executable by the one or more processor units, the upper limit determination module configured to set an upper limit of current supplied from a first power source to a component based on an average level of charge at a second power source over a predetermined amount of time and update the upper limit of current from the first power source to the second component at any given time t equal to sum of (1) a percentage change in the charge at the second power source in a predetermined time period preceding t multiplied by an empirically determined constant (k) and (2) currently set upper limit of current from the first power source to the second component.
Dependencies are inferred from the claim text.