POWER STORAGE ADAPTER FOR EFFICIENT SUPPLY OF POWER OF MULTIPLE PORTABLE INFORMATION HANDLING SYSTEMS
First Claim
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1. A power storage adapter (PSA), comprising:
- a first PSA port and a second PSA port;
a PSA battery; and
a PSA controller having access to memory media storing instructions executable by the PSA controller to;
establish a first power delivery contract to supply a first electrical power from the PSA to a first portable information handling system coupled to the power storage adapter at the first PSA port; and
when an AC line power source does not supply electrical power to the PSA battery;
receive a request for a second power delivery contract from a second portable information handling system coupled to the power storage adapter at the second PSA port, the second power delivery contract to supply a second electrical power to the second portable information handling system;
responsive to receiving the request, determine a battery capacity of the PSA battery; and
when the battery capacity is sufficient to supply a sum of the first electrical power and the second electrical power for a first minimum duration, perform a first power state analysis further comprising;
determine a first battery threshold power above which the second electrical power supplied at the second PSA port, in addition to the first electrical power supplied at the first PSA port, is supplied with less than a specified power loss;
determine a power margin of the PSA as a difference between a maximum power rating of the PSA and the first electrical power; and
when the power margin is greater than or equal to the first battery threshold power, establish the second power delivery contract.
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Abstract
A power storage adapter may use a method for efficient supply of power of multiple portable information handling systems. In particular, when electrical power is delivered from a battery to at least one of the portable information handling systems, the power storage adapter may deliver electrical power from the battery to another portable information handling system when the battery has sufficient battery capacity such that the power is supplied efficiently.
14 Citations
20 Claims
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1. A power storage adapter (PSA), comprising:
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a first PSA port and a second PSA port; a PSA battery; and a PSA controller having access to memory media storing instructions executable by the PSA controller to; establish a first power delivery contract to supply a first electrical power from the PSA to a first portable information handling system coupled to the power storage adapter at the first PSA port; and when an AC line power source does not supply electrical power to the PSA battery; receive a request for a second power delivery contract from a second portable information handling system coupled to the power storage adapter at the second PSA port, the second power delivery contract to supply a second electrical power to the second portable information handling system; responsive to receiving the request, determine a battery capacity of the PSA battery; and when the battery capacity is sufficient to supply a sum of the first electrical power and the second electrical power for a first minimum duration, perform a first power state analysis further comprising; determine a first battery threshold power above which the second electrical power supplied at the second PSA port, in addition to the first electrical power supplied at the first PSA port, is supplied with less than a specified power loss; determine a power margin of the PSA as a difference between a maximum power rating of the PSA and the first electrical power; and when the power margin is greater than or equal to the first battery threshold power, establish the second power delivery contract. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10)
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11. A method, comprising:
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establishing a first power delivery contract to supply a first electrical power from a power storage adapter (PSA) to a first portable information handling system coupled to the power storage adapter at a first PSA port of the PSA; and when an AC line power source does not supply electrical power to the PSA battery; receiving a request for a second power delivery contract from a second portable information handling system coupled to the PSA at a second PSA port of the PSA, the second power delivery contract to supply a second electrical power to the second portable information handling system; responsive to receiving the request, determining a battery capacity of the PSA battery; and when the battery capacity is sufficient to supply a sum of the first electrical power and the second electrical power for a first minimum duration, performing a first power state analysis further comprising; determining a first battery threshold power above which the second electrical power supplied at the second PSA port, in addition to the first electrical power supplied at the first PSA port, is supplied with less than a specified power loss; determining a power margin of the PSA as a difference between a maximum power rating of the PSA and the first electrical power; and when the power margin is greater than or equal to the first battery threshold power, establishing the second power delivery contract. - View Dependent Claims (12, 13, 14, 15, 16, 17, 18, 19, 20)
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Specification