Communications for wireless power transfer
First Claim
Patent Images
1. A system, comprising:
- a sender comprising;
a signal generator;
an amplifier coupled to the signal generator, said amplifier configured to receive power from a power source and to generate an electrical transmission signal adapted to be used for wireless power transmission;
a sender wireless power transfer device coupled to the amplifier, the wireless power sender adapted and configured to transmit wireless power based on the electrical transmission signal received from the amplifier;
a sender controller coupled to at least one of the signal generator, the amplifier and the sender wireless power transfer device and adapted to control the transmission of wireless power from the sender wireless power transfer device and to change a dwell time of the sender on the receiver based on a received power requirement; and
a sender communications device adapted and configured to communicate with a receiver communications device, receive a control signal comprising the power requirement from the receiver communications device, and send a control signal to the receiver communications device, using one or more of the sender wireless power transfer device and a radio; and
a receiver comprising;
a receiver wireless power transfer device adapted and configured to receive wireless power transmitted from a sender wireless power transfer device, to generate a receiver electrical signal based on the received wireless power, and to connect to a receiver electrical storage device adapted and configured to store electrical energy based on the receiver electrical signal generated by the receiver wireless power transfer device;
a receiver controller coupled to at least one of the receiver transducer and the receiver electrical storage device, anda receiver communications device adapted and configured to communicate with a sender communications device, receive a control signal from the sender communications device, and send a control signal comprising the power requirement to the sender communications device, using one or more of the receiver wireless power transfer device and a radio.
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Abstract
A signal generator generates an electrical signal that is sent to an amplifier, which increases the power of the signal using power from a power source. The amplified signal is fed to a sender transducer to generate ultrasonic waves that can be focused and sent to a receiver. The receiver transducer converts the ultrasonic waves back into electrical energy and stores it in an energy storage device, such as a battery, or uses the electrical energy to power a device. In this way, a device can be remotely charged or powered without having to be tethered to an electrical outlet.
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Citations
35 Claims
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1. A system, comprising:
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a sender comprising; a signal generator; an amplifier coupled to the signal generator, said amplifier configured to receive power from a power source and to generate an electrical transmission signal adapted to be used for wireless power transmission; a sender wireless power transfer device coupled to the amplifier, the wireless power sender adapted and configured to transmit wireless power based on the electrical transmission signal received from the amplifier; a sender controller coupled to at least one of the signal generator, the amplifier and the sender wireless power transfer device and adapted to control the transmission of wireless power from the sender wireless power transfer device and to change a dwell time of the sender on the receiver based on a received power requirement; and a sender communications device adapted and configured to communicate with a receiver communications device, receive a control signal comprising the power requirement from the receiver communications device, and send a control signal to the receiver communications device, using one or more of the sender wireless power transfer device and a radio; and a receiver comprising; a receiver wireless power transfer device adapted and configured to receive wireless power transmitted from a sender wireless power transfer device, to generate a receiver electrical signal based on the received wireless power, and to connect to a receiver electrical storage device adapted and configured to store electrical energy based on the receiver electrical signal generated by the receiver wireless power transfer device; a receiver controller coupled to at least one of the receiver transducer and the receiver electrical storage device, and a receiver communications device adapted and configured to communicate with a sender communications device, receive a control signal from the sender communications device, and send a control signal comprising the power requirement to the sender communications device, using one or more of the receiver wireless power transfer device and a radio. - View Dependent Claims (34)
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2. A system, comprising:
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a receiver wireless power transfer device adapted and configured to receive wireless power transmitted from a sender wireless power transfer device, to generate a receiver electrical signal based on the received wireless power, and to connect to a receiver electrical storage device adapted and configured to store electrical energy based on the receiver electrical signal generated by the receiver wireless power transfer device; a receiver controller coupled to at least one of the receiver transducer and the receiver electrical storage device, and a receiver communications device adapted and configured to communicate with a sender communications device, receive a control signal from the sender communications device, and send a control signal comprising a power requirement that causes the sender to change a dwell time of the sender to the sender communications device, using one or more of the receiver wireless power transfer device and a radio. - View Dependent Claims (3, 4, 5, 6, 7, 8, 9, 10, 35)
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11. A system comprising:
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a signal generator; an amplifier coupled to the signal generator, said amplifier configured to receive power from a power source and to generate an electrical transmission signal adapted to be used for wireless power transmission; a sender wireless power transfer device coupled to the amplifier, the sender wireless power transfer device adapted and configured to transmit wireless power based on the electrical transmission signal received from the amplifier; a sender controller coupled to at least one of the signal generator, the amplifier and the sender wireless power transfer device and adapted to control the transmission of wireless power from the sender wireless power transfer device and to change a dwell time of the sender on the receiver based on a received power requirement; and a sender communications device adapted and configured to communicate with a receiver communications device, receive a control signal comprising the power requirement from the receiver communications device, and send a control signal to the receiver communications device, using one or more of the sender wireless power transfer device and a radio. - View Dependent Claims (12, 13, 14, 15, 16, 17, 18, 19)
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20. A method comprising:
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emitting energy from a sender wireless power transfer device of a wireless power sender; receiving a communication from a wireless power receiver, at the wireless power sender with one or more of the sender wireless power transfer device and a radio, the communication comprising a control signal comprising a power requirement; and changing a dwell time of the sender wireless power transfer device on the wireless power receiver based on the power requirement of the control signal. - View Dependent Claims (21, 22, 23, 24, 25, 26)
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27. A method comprising:
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receiving energy emitted from a sender wireless power transfer device of a wireless power sender with a receiver wireless power transfer device of a wireless power receiver; sending, from the wireless power receiver with one or more of the receiver wireless power transfer device and a radio, a communication to the wireless power sender, the communication comprising a control signal comprising a power requirement; receiving energy emitted from the sender wireless power transfer device of the wireless power sender with the receiver wireless power transfer device of the wireless power receiver, wherein the dwell time of sender wireless power transfer device on the wireless power receiver is changed based on the control signal. - View Dependent Claims (28, 29, 30, 31, 32, 33)
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Specification