WIRELESS POWER UTILIZATION IN A LOCAL COMPUTING ENVIRONMENT
First Claim
1. A method of wirelessly transmitting power, comprising:
- at a wireless power supply;
wirelessly passing power from the wireless power supply to a resonant circuit of an external device using a frequency band of the wireless power supply;
receiving an indication from the external device of an amount of power wirelessly received from the wireless power supply; and
causing the resonant circuit of the external device to tune to a different frequency band of the wireless power supply when a different amount of power is required by the external device.
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Abstract
Various embodiments of a wirelessly powered local computing environment are described. The wireless powered local computing environment includes at least a near field magnetic resonance (NFMR) power supply arranged to wirelessly provide power to any of a number of suitably configured devices. In the described embodiments, the devices arranged to receive power wirelessly from the NFMR power supply must be located in a region known as the near field that extends no further than a distance D of a few times a characteristic size of the NFMR power supply transmission device. Typically, the distance D can be on the order of 1 meter or so.
15 Citations
20 Claims
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1. A method of wirelessly transmitting power, comprising:
at a wireless power supply; wirelessly passing power from the wireless power supply to a resonant circuit of an external device using a frequency band of the wireless power supply; receiving an indication from the external device of an amount of power wirelessly received from the wireless power supply; and causing the resonant circuit of the external device to tune to a different frequency band of the wireless power supply when a different amount of power is required by the external device. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9)
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10. A wireless power supply arranged to wirelessly transmit power to an external device, the wireless power supply comprising:
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a wireless power transmitter having a resonant transmitter arranged to wirelessly provide power at a frequency band of the wireless power supply to the external device; and a telemetry transceiver arranged to (i) receive an indication from the external device of an amount of power wirelessly received from the wireless power supply, and (ii) transmit an instruction from a processor that causes the external device to tune to a different frequency band of the wireless power supply when a different amount of power is required by the external device. - View Dependent Claims (11, 12, 13, 14)
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15. A computing device, comprising:
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a processor; a wireless power unit coupled to the processor and comprising a power source arranged to provide power, the power source coupled to a resonant circuit arranged to generate an electromagnetic field at a resonant frequency, the electromagnetic field being associated with at least some of the power; and a housing body that carries the wireless power unit, wherein an RF emissive portion of the housing body is operable as a wireless power transmitter suitable for wirelessly passing power to an external device using the electromagnetic field at the resonant frequency. - View Dependent Claims (16, 17, 18, 19, 20)
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Specification