Communications for power delivery solutions
First Claim
1. An apparatus for use with a protocol that specifies a power-sourcing voltage range that indicates power sourcing capabilities and for communicating additional power sourcing capabilities using voltage variations within the power-sourcing voltage range, the apparatus comprising:
- a power-sourcing device configured to provide power to an external power-sinking device over a wired connection containing a plurality of wires, the power-sourcing device including;
a voltage control circuit configured to drive a voltage over a wire of the plurality of wires; and
processing circuitry configured to;
communicate to the external power-sinking device, using the voltage control circuit, first power-sourcing capabilities to the external power-sinking device by setting the voltage over the wire to a value within the power-sourcing voltage range specified by the protocol; and
communicate encoded data to the external power-sinking device, using the voltage control circuit, the encoded data indicating the additional power sourcing capabilities of the power-sourcing device and generated by varying the voltage over the wire to varying voltage values, the voltage variations maintaining voltage on the wire within the power-sourcing voltage range specified by the protocol.
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Accused Products
Abstract
A protocol can specifie a power-sourcing voltage range that indicates power sourcing capabilities. Additional power sourcing capabilities can be communicated using voltage variations within the power-sourcing voltage range. A power-sourcing device can provide power to an external power-sinking device over a wired connection containing a plurality of wires. A voltage control circuit can be configured to drive a voltage over a wire of the plurality of wires. Processing circuitry can communicate, using the voltage control circuit, first power-sourcing capabilities to the external power-sinking device by setting the voltage over the wire to a value within the power-sourcing voltage range. The processing circuitry can also communicate, using the voltage control circuit, the additional power sourcing capabilities of the power-sourcing device using voltage variations on the wire, the voltage variations maintaining voltage on the wire within the power-sourcing voltage range.
25 Citations
20 Claims
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1. An apparatus for use with a protocol that specifies a power-sourcing voltage range that indicates power sourcing capabilities and for communicating additional power sourcing capabilities using voltage variations within the power-sourcing voltage range, the apparatus comprising:
a power-sourcing device configured to provide power to an external power-sinking device over a wired connection containing a plurality of wires, the power-sourcing device including; a voltage control circuit configured to drive a voltage over a wire of the plurality of wires; and processing circuitry configured to; communicate to the external power-sinking device, using the voltage control circuit, first power-sourcing capabilities to the external power-sinking device by setting the voltage over the wire to a value within the power-sourcing voltage range specified by the protocol; and communicate encoded data to the external power-sinking device, using the voltage control circuit, the encoded data indicating the additional power sourcing capabilities of the power-sourcing device and generated by varying the voltage over the wire to varying voltage values, the voltage variations maintaining voltage on the wire within the power-sourcing voltage range specified by the protocol. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9)
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10. An apparatus for use with a protocol that specifies a power-sourcing voltage range that indicates power-sourcing capabilities and for communicating additional power-sourcing capabilities using voltage variations within the power-sourcing voltage range, the apparatus comprising:
a power-sinking device configured to receive power from an external power-sourcing device over a wired connection containing a plurality of wires, the power-sinking device including; a voltage circuit configured to detect a voltage that is provided over the plurality of wires; and processing circuitry configured to; determine power-sourcing capabilities of the external power-sourcing device based upon the detected voltage being within the power-sourcing voltage range specified by the protocol; and responsive to receipt of data encoded by the power-sourcing device using voltage variations on the wire, determine the additional power-sourcing capabilities of the power-sourcing device by decoding the encoded data, the voltage variations maintaining voltage on the wire within the power-sourcing voltage ranges specified by the protocol. - View Dependent Claims (11, 12, 13, 14)
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15. A method for use with a protocol that specifies a power-sourcing voltage range that indicates power sourcing capabilities and for communicating additional power sourcing capabilities using voltage variations within the power-sourcing voltage range, the method comprising:
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providing, from a power-sourcing device, power to an external power-sinking device over a wired connection containing a plurality of wires; driving, using a voltage control circuit of the power-sourcing device, a voltage over a wire of the plurality of wires; communicating, using the voltage control circuit and without negotiating power delivery parameters, first power-sourcing capabilities to the external power sinking device by setting the voltage over the wire to a value within the power-sourcing voltage range; and communicating encoded data to the power-sinking device, using the voltage control circuit, the encoded data indicating the additional power sourcing capabilities of the power-sourcing device and generated using voltage variations on the wire, the voltage variations maintaining voltage on the wire within the power-sourcing voltage range. - View Dependent Claims (16, 17, 18)
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19. An apparatus for use with a protocol that specifies a power-sourcing voltage range that indicates power sourcing capabilities and for communicating additional power sourcing capabilities using voltage variations within the power-sourcing voltage range, the apparatus comprising:
a power-sourcing device configured to provide power to an external power-sinking device over a wired connection containing a plurality of wires, the power-sourcing device including; a voltage control circuit configured to drive a voltage over a wire of the plurality of wires; and processing circuitry configured to; communicate, using the voltage control circuit, first power-sourcing capabilities to the external power-sinking device by setting the voltage over the wire to a value within the power-sourcing voltage range; and communicate encoded data to the power-sinking device, using the voltage control circuit, the encoded data indicating the additional power sourcing capabilities of the power-sourcing device and generated by varying the voltage over the wire to varying voltage values, the voltage variations maintaining voltage on the wire within the power-sourcing voltage range, the varying voltage levels including a first voltage range that indicates a current standard and a second voltage range that indicates a first current capability. - View Dependent Claims (20)
Specification