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US 10,853,292 B2Granted
Operation of a switch in linear mode
AssigneeHewlett-Packard Development Company, L.P.
InventorRaghotham Reddy Nathadi
Life of this patent
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Abstract
A computing device includes a switch that operates in a linear mode according to a threshold based on a detection of an increase of current drawn by a device that is connected to the switch. The linear mode delivers a constant amount of current to the device. The switch, upon reaching the threshold, exits the linear mode and operates in a non-linear mode to communicate power to the device.
Claims15
A computing device comprising:
- a switch comprising a regulator;
- and
- a controller to:
- cause the regulator to operate in a linear mode according to a threshold based on a detection of an increase of a current drawn by a device connected to the regulator, wherein the operation of the regulator in the linear mode delivers a constant amount of the current;
- upon reaching the threshold, cause the regulator to exit the linear mode and operate in a non-linear mode to provide power to the device, wherein the current varies during the non-linear mode of operation of the regulator;
- monitor the current during the operation of the regulator in the non-linear mode;
- and
- turn off the regulator in response to the current during the operation of the regulator in the non-linear mode exceeding a current limit.
5 more elements
A method performed by a computing device, comprising:
- detecting an increase of a current to a universal serial bus (USB) device;
- operating a switch to provide the current, wherein the switch comprises a regulator, operating the switch comprises operating the regulator in a linear mode based upon the detection of the increase of the current, the linear mode delivers a constant amount of the current, and the current varies during a non-linear mode of operation of the regulator;
- based on the constant amount of the current and a period of time at which the linear mode delivers the constant amount of the current, exiting the linear mode and operating the regulator in the non-linear mode to provide the current;
- monitoring the current during the operation of the regulator in the non-linear mode;
- and
- turning off the regulator in response to the current during the operation of the regulator in the non-linear mode exceeding a current limit.
3 more elements
A computing device comprising:
- a switch comprising a regulator;
- and
- a controller to:
- cause the regulator to operate in a linear mode delivering a constant amount of current to a device connected to the regulator for a period of time based on a detection of a surge in current to the device;
- cause the regulator to exit the linear mode in response to expiration of the period of time;
- cause the regulator to operate in a non-linear mode after the period of time, wherein a current drawn by the device in the non-linear mode varies;
- monitor the current drawn by the device during the non-linear mode;
- and
- turn off the regulator in response to the current drawn by the device during the non-linear mode exceeding a current limit.
6 more elements
Dependencies are inferred from the claim text.