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US 11,392,532 B2Granted
Adjustable power delivery scheme for universal serial bus
AssigneeIntel Corporation
InventorJames R. Trethewey
Life of this patent
Estimating the term…
Abstract
Described is an apparatus which comprises: an adjustable power supply source to generate an adjustable power supply; a node to provide the adjustable power supply to a device; and a bus which is operable to: send a first message to the device indicating that the adjustable power supply source is capable of dynamically providing an adjustable power supply; and receive a request from the device, the request indicating a new voltage or current specification.
Claims21
An apparatus, comprising:
- a power amplifier, the power amplifier is to couple to a Universal Serial Bus (USB) power adaptor via a power wire of a USB cable bundle;
- an impedance matching stage coupled to the power amplifier;
- an auto tune relay coupled to the impedance matching stage;
- a power transmitter unit (PTU) coil coupled to the auto tune relay, the PTU coil and the auto tune relay are to provide a wireless power transmission to a wireless charging-enabled device;
- a management microcontroller, the management microcontroller is to exchange messages with the USB power adaptor via one or more messaging wires of the USB cable bundle;
- and
- a radio communication module coupled to the management microcontroller, the radio communication module is to exchange messages with the wireless charging-enabled device;
- wherein:
- the PTU coil and the auto tune relay are to provide the wireless power transmission at an initial power level, and the wireless power transmission is received by the wireless charging-enabled device at a received power level, different than the initial power level;
- and
- the radio communication module is to receive a message from the wireless charging-enabled device requesting power at a new power level different than the initial power level, the new power level is determined by the wireless charging-enabled device based on a comparison of the initial power level and the received power level.
8 more elements
A Universal Serial Bus (USB) power adaptor, comprising:
- a memory device to store instructions;
- and
- a processor to execute the instructions to:
- transmit a message to a USB-compliant device via one or more messaging wires of a USB cable bundle, wherein the message comprises a menu of available power supplies, and the menu comprises power data objects of a USB specification;
- receive a message from the USB-compliant device comprising a request for a selected power supply among the available power supplies in the menu;
- in response to the request, provide power to the USB-compliant device with the selected power supply via a power wire of the USB cable bundle;
- receive a request from the USB-compliant device for power at a new power level which is off menu relative to the menu of available power supplies, the request for the power at the new power level comprises an ADJUST message, and the ADJUST message is defined by a reserved data message type in a table of data message types of the USB power adaptor;
- and
- in response to the request for the power at the new power level, provide the power to the USB-compliant device at the new power level via the power wire of the USB cable bundle.
6 more elements
A non-transitory machine-readable storage media having machine-readable instructions that when executed cause a power provider to perform an operation comprising:
- transmitting a first message to a consumer device, wherein the first message is indicative of a menu of power supplies available to the consumer device on a power supply wire, and the menu is provided according to a Universal Serial Bus (USB) specification;
- receiving a request from the consumer device via one or more messaging wires, wherein the request identifies a selected power supply from among the menu of power supplies;
- providing power to the consumer device according to the selected power supply;
- and
- after providing the power according to the selected power supply, receiving a request from the consumer device via the one or more messaging wires for a power supply at a new power level, different than a power level of the selected power supply, wherein the power supply at the new power level is off menu relative to the menu of power supplies, the request for the power at the new power level comprises an ADJUST message, and the ADJUST message is defined by a reserved data message type in a table of data message types of the USB specification.
2 more elements
A non-transitory machine-readable storage media having machine-readable instructions that when executed cause a consumer device to perform an operation comprising:
- receiving a first message from a Universal Serial Bus (USB) power adaptor, wherein the first message is indicative of a menu of power supplies available to the consumer device, and the menu is provided according to a USB specification;
- transmitting a request to the USB power adaptor for a selected power supply among the menu of power supplies;
- receiving power according to the selected power supply;
- determining that an efficiency of the consumer device with the power according to the selected power supply is below a threshold;
- and
- in response to the determining that the efficiency of the consumer device is below the threshold, transmitting a request to the USB power adaptor for a power supply at a new power level, different than a power level of the selected power supply, wherein the power supply at the new power level is off menu relative to the menu of power supplies, and the request for the power at the new power level is defined by a reserved data message type in a table of data message types of the USB specification.
3 more elements
Dependencies are inferred from the claim text.