Systems and methods for interfacing a battery-powered information handling system with a battery pack of a physically separable battery-powered input or input/output device
First Claim
1. A battery-powered information handling system, comprising:
- a system load;
a charger regulator that is configured to produce charge current from a current supply, said current supply comprising alternating current or direct current from an AC adapter; and
battery and charging circuitry coupled to said charger regulator and configured to provide said charge current to a first battery pack that is a main system battery pack of said battery powered information handling system;
wherein said battery and charging circuitry of said battery-powered information handling system is further configured to be coupled to a second battery pack that is a battery pack of a physically separable battery-powered input or input/output device to allow at least one of;
a flow of said charge current produced by said charge regulator from said battery and charging circuitry to charge said second battery pack of said physically separable battery-powered input or input/output device, ora flow of discharge current from said second battery pack of said physically separable battery-powered input or input/output device to power said system load of said battery-powered information handling system, ora combination thereof.
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Accused Products
Abstract
Systems and methods for interfacing a battery system of a battery-powered keyboard system with main battery components of a battery-powered information handling system to enable a battery charging system of the battery-powered information handling system to charge both the main battery pack of the battery-powered information handling system and the battery pack of the battery-powered keyboard system without the presence of a separate stand-alone battery charger in the battery-powered keyboard system, and/or so that the keyboard battery of the battery-powered keyboard system may be used to supplement the main battery of the battery-powered information handling system such as in case of emergency power loss or to extend total battery life for running the information handling system.
63 Citations
28 Claims
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1. A battery-powered information handling system, comprising:
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a system load; a charger regulator that is configured to produce charge current from a current supply, said current supply comprising alternating current or direct current from an AC adapter; and battery and charging circuitry coupled to said charger regulator and configured to provide said charge current to a first battery pack that is a main system battery pack of said battery powered information handling system; wherein said battery and charging circuitry of said battery-powered information handling system is further configured to be coupled to a second battery pack that is a battery pack of a physically separable battery-powered input or input/output device to allow at least one of; a flow of said charge current produced by said charge regulator from said battery and charging circuitry to charge said second battery pack of said physically separable battery-powered input or input/output device, or a flow of discharge current from said second battery pack of said physically separable battery-powered input or input/output device to power said system load of said battery-powered information handling system, or a combination thereof. - View Dependent Claims (2, 3, 4, 5, 6, 7, 14)
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8. A portable information handling system, comprising:
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a first battery pack that is a main system smart battery pack coupled to provide current to a system load of said portable information handling system; a main charger regulator and controller coupled to provide charge current to said main system smart battery pack; battery interface control circuitry coupled to said main system smart battery pack and said main charger regulator and controller at a first node; and an auxiliary charger controller coupled to control said battery interface control circuitry, said auxiliary charger controller also being coupled to monitor charge condition of said main system smart battery pack and charging operation of said main charger regulator and controller; wherein said battery interface control circuitry is further configured to be coupled between said first node and a second smart battery pack that is a smart battery pack of a physically separable wireless keyboard; wherein said battery interface control circuitry is configured to control current flow between said first node and said second smart battery pack of said physically separable wireless keyboard. - View Dependent Claims (9, 10, 11, 12, 13)
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15. A method of operating a battery-powered information handling system, comprising:
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providing a battery-powered information handing system that includes a system load, a charger regulator that is configured to produce charge current from a current supply that comprises alternating current or direct current from an AC adapter, and battery and charging circuitry coupled to said charger regulator and configured to provide said charge current to a first battery pack that is a main system battery pack of said battery powered information handling system; coupling said battery and charging circuitry of said battery-powered information handling system to a second battery pack that is a battery pack of a physically separable battery-powered input or input/output device, said battery and charging circuitry including a said first battery pack that is a main battery pack of said battery-powered information handling system; and
at least one of;allowing a flow of said charge current produced by said charge regulator from said battery and charging circuitry to charge said second battery pack of said physically separable battery-powered input or input/output device, or allowing a flow of discharge current from said second battery pack of said physically separable battery-powered input or input/output device to power said system load of said battery- powered information handling system, or a combination thereof. - View Dependent Claims (16, 17, 18, 19, 20, 21, 22)
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23. A battery-powered information handling system, comprising:
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battery and charging circuitry configured to provide charge current to a first battery pack that is a main system battery pack of said battery powered information handling system; wherein said battery and charging circuitry of said battery-powered information handling system is configured to be coupled to a second battery pack that is a battery pack of a physically separable battery-powered input or input/output device to allow a flow of current between said battery and charging circuitry and said second battery pack of said physically separable battery-powered input or input/output device; and wherein said current flow between said battery and charging circuitry and said second battery pack of said battery-powered input or input/output device comprises at least one of; charge current flow from said battery and charging circuitry to said second battery pack of said battery-powered input or input/output device of substantially unaltered voltage from the voltage of said charge current provided to said main system battery pack by said battery and charging circuitry, discharge current flow from said second battery pack of said battery-powered input or input/output device to said battery and charging circuitry of substantially unaltered voltage from a discharge current flow from said main system battery pack, or a combination thereof. - View Dependent Claims (24, 25)
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26. A method of operating a battery-powered information handling system, comprising:
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coupling battery and charging circuitry of said battery-powered information handling system to a second battery pack that is a battery pack of a physically separable battery-powered input or input/output device, said battery and charging circuitry including a first battery pack that is a main battery pack of said battery-powered information handling system; and allowing a flow of current between said battery and charging circuitry and said second battery pack of said physically separable battery-powered input or input/output device; wherein said method comprises at least one of; allowing flow of charge current from said battery and charging circuitry to said second battery pack of said battery-powered input or input/output device of substantially unaltered voltage from the voltage of a charge current provided to said main system battery pack by said battery and charging circuitry, allowing flow of discharge current flow from said second battery pack of said battery-powered input or input/output device to said battery. and charging circuitry of substantially unaltered voltage from a discharge current flow from said main system battery pack, or a combination thereof. - View Dependent Claims (27, 28)
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Specification