Information handling system selective local and remote charger control
First Claim
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1. A portable information handling system comprising:
- a housing;
a processor disposed in the housing and operable to execute instructions to process information;
a memory disposed in the housing and interfaced with the processor, the memory operable to store the information;
a port disposed at the housing and operable to accept an external cable;
a port controller interfaced with the port and operable to communicate with one or more external devices through the external cable;
a charger interfaced with the port and operable to accept power provided to the port and convert the power to a system voltage;
a switch interfaced with the port to selectively direct the power from the port to one of either the charger or a system bus; and
a power manager interfaced with the port controller and the switch, the power manager comprising one or more processing components executing instructions stored in non-transitory memory to selectively direct the power with the switch based at least in part on information communicated with the one or more external devices through the port;
wherein the information communicated with the one or more external devices comprises an identifier of the information handling system associated with power sink capabilities of the information handling system.
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Abstract
A portable information handling system selectively accepts power transferred from an external device through a port, such as USB TYPE C™ port, with one of a first or second power configuration. The first power configuration accepts power regulated by a charger of an external device and routed directly to a system bus and battery of the portable information handling system. The second power configuration accepts power regulated by an internal charger of the portable information handling system, such as a narrow voltage direct current charger.
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Citations
16 Claims
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1. A portable information handling system comprising:
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a housing; a processor disposed in the housing and operable to execute instructions to process information; a memory disposed in the housing and interfaced with the processor, the memory operable to store the information; a port disposed at the housing and operable to accept an external cable; a port controller interfaced with the port and operable to communicate with one or more external devices through the external cable; a charger interfaced with the port and operable to accept power provided to the port and convert the power to a system voltage; a switch interfaced with the port to selectively direct the power from the port to one of either the charger or a system bus; and a power manager interfaced with the port controller and the switch, the power manager comprising one or more processing components executing instructions stored in non-transitory memory to selectively direct the power with the switch based at least in part on information communicated with the one or more external devices through the port; wherein the information communicated with the one or more external devices comprises an identifier of the information handling system associated with power sink capabilities of the information handling system. - View Dependent Claims (2, 3, 4, 5, 6)
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7. An information handling system power system comprising:
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a battery; a port operable to interface with an external power supply; a charger operable to convert power received from the external power supply to an internal power supply voltage; a switch operable to selectively connect the external power supply with one of the charger or the battery; and a power manager comprising one or more processing components executing instructions stored in non-transitory memory and interfaced with the switch to select a connection to the charger or the battery based at least in part on information communicated with the external power supply; wherein the information communicated with the external power supply comprises an identifier associated with the power transfer characteristics of the charger. - View Dependent Claims (8, 9, 10, 11)
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12. A portable information handling system comprising:
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a housing; a processor disposed in the housing and operable to execute instructions to process information; a memory disposed in the housing and interfaced with the processor, the memory operable to store the information; a port disposed at the housing and operable to accept an external cable; a port controller interfaced with the port and operable to communicate with one or more external devices through the external cable; a charger interfaced with the port and operable to accept power provided to the port and convert the power to a system voltage; a switch interfaced with the port to selectively direct the power from the port to one of either the charger or a system bus; and a power manager interfaced with the port controller and the switch, the power manager comprising one or more processing components executing instructions stored in non-transitory memory to selectively direct the power with the switch based at least in part on information communicated with the one or more external devices through the port; wherein the power manager selectively directs power based in part on a charge state of a battery integrated in the information handling system. - View Dependent Claims (13, 14, 15, 16)
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Specification