System and Method for Powering Docked Portable Information Handling System
First Claim
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1. An information handling system comprising:
- a housing;
processing components disposed in the housing and operable to process information;
a docking connector disposed at the housing and operable to couple to a docking station, the docking connector communicating information and power with the docking station;
a power sensor disposed in the housing, the power sensor operable to sense available power;
a charger disposed in the housing and operable to apply power to charge a battery disposed in the housing, the charger interfaced with the power sensor to determine available power for charging the battery; and
a dock sensor associated with the power sensor, the dock sensor operable to determine that the docking connector is receiving power, to receive available power from the docking connector, to remove the interface of the power sensor and the charger and to provide the available power received from the docking connector to the charger in the place of the available power sensed by the power sensor.
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Abstract
A portable information handling system powered through a docking station charges an internal battery based on available power sensed at the docking station and communicated to a charger of the information handling system. A dock sensor on the information handling system selectively interfaces a local power sensor if the information handling system is not docked or a docking station sensor if the information handling system is docked. Available power sensed at the docking station is communicated to a battery charger of the information handling system by a differential wire pair interfaced through a docking connector.
25 Citations
20 Claims
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1. An information handling system comprising:
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a housing; processing components disposed in the housing and operable to process information; a docking connector disposed at the housing and operable to couple to a docking station, the docking connector communicating information and power with the docking station; a power sensor disposed in the housing, the power sensor operable to sense available power; a charger disposed in the housing and operable to apply power to charge a battery disposed in the housing, the charger interfaced with the power sensor to determine available power for charging the battery; and a dock sensor associated with the power sensor, the dock sensor operable to determine that the docking connector is receiving power, to receive available power from the docking connector, to remove the interface of the power sensor and the charger and to provide the available power received from the docking connector to the charger in the place of the available power sensed by the power sensor. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8)
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9. A method for docking a portable information handling system to a docking station, the method comprising:
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sensing power available at the docking station; communicating the sensed power from the docking station to the information handling system; and applying the sensed power at the information handling system to determine power applied to charge a battery. - View Dependent Claims (10, 11, 12, 13, 14, 15, 16)
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17. A system for managing power provided from a docking station to a portable information handling system, the system comprising:
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a power sensor integrated in the docking station and operable to determine power available at the docking station; a charger integrated in the portable information handling system and operable to apply the power available to charge a battery integrated in the information handling system within a predetermined power rating; and an interface from the power sensor through a docking connector to the charger to communicate the power available from the power sensor to the charger. - View Dependent Claims (18, 19, 20)
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Specification