Power storage adapter using high efficiency charging for low power states
First Claim
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1. A power storage adapter (PSA), comprising:
- a PSA port;
a PSA battery; and
a PSA controller having access to memory media storing instructions executable by the PSA controller,wherein when a portable information handling system is connected to the PSA port to receive first electrical power supplied by the power storage adapter, an AC line power source does not supply electrical power to the power storage adapter, and a first state of charge of the PSA battery is above a first recharging state of charge, the instructions are executable by the PSA controller to;
determine that the first electrical power is below a low load threshold;
responsive to determining that the first electrical power is below the low load threshold, discontinue supplying the first electrical power at the PSA port;
determine a second state of charge of an internal battery included with the portable information handling system; and
when the second state of charge is less than a second recharging state of charge for the internal battery, resume supplying the first electrical power at the PSA port.
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Abstract
A power storage adapter may use a high efficiency charging method when supplying electrical power to a portable information handling system when the power storage adapter is not connected to AC line power. In particular, when the portable information handling system draws the electrical power below a low load threshold, such as during a low power state, the power storage adapter may avoid supplying electrical power. When an internal battery of the portable information handling system has an SOC less than a recharging state of charge for the internally battery, the power storage adapter may resume supplying power to the portable information handling system.
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Citations
14 Claims
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1. A power storage adapter (PSA), comprising:
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a PSA port; a PSA battery; and a PSA controller having access to memory media storing instructions executable by the PSA controller, wherein when a portable information handling system is connected to the PSA port to receive first electrical power supplied by the power storage adapter, an AC line power source does not supply electrical power to the power storage adapter, and a first state of charge of the PSA battery is above a first recharging state of charge, the instructions are executable by the PSA controller to; determine that the first electrical power is below a low load threshold; responsive to determining that the first electrical power is below the low load threshold, discontinue supplying the first electrical power at the PSA port; determine a second state of charge of an internal battery included with the portable information handling system; and when the second state of charge is less than a second recharging state of charge for the internal battery, resume supplying the first electrical power at the PSA port. - View Dependent Claims (2, 3, 4, 5, 6, 7)
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8. A method, comprising:
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when a portable information handling system is connected to a PSA port of a power storage adapter to receive first electrical power supplied by the power storage adapter, an AC line power source does not supply electrical power to the power storage adapter, and a first state of charge of a PSA battery included with the power storage adapter is above a first recharging state of charge; determining that the first electrical power is below a low load threshold; responsive to determining that the first electrical power is below the low load threshold, discontinuing supplying the first electrical power at the PSA port; determining a second state of charge of an internal battery included with the portable information handling system; and when the second state of charge is less than a second recharging state of charge for the internal battery, resuming supplying the first electrical power at the PSA port. - View Dependent Claims (9, 10, 11, 12, 13, 14)
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Specification