Receiver transducer for wireless power transfer
First Claim
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1. A system, comprising:
- a receiver transducer adapted and configured to receive ultrasonic waves generated by a sender transducer of a sender and to generate a receiver electrical signal based on the received ultrasonic waves;
a receiver electrical storage device adapted and configured to store electrical energy based on the receiver electrical signal generated by the receiver transducer;
a receiver communications device adapted and configured to send input to the sender, the input comprising a power requirement that causes the sender to change a dwell time of the sender on the receiver; and
a receiver controller coupled to at least one of the receiver transducer and the receiver electrical storage device.
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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
9 Claims
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1. A system, comprising:
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a receiver transducer adapted and configured to receive ultrasonic waves generated by a sender transducer of a sender and to generate a receiver electrical signal based on the received ultrasonic waves; a receiver electrical storage device adapted and configured to store electrical energy based on the receiver electrical signal generated by the receiver transducer; a receiver communications device adapted and configured to send input to the sender, the input comprising a power requirement that causes the sender to change a dwell time of the sender on the receiver; and a receiver controller coupled to at least one of the receiver transducer and the receiver electrical storage device. - View Dependent Claims (2, 3, 4, 5, 6, 7)
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8. A method for receiving at a receiver ultrasonic energy from a sender, comprising:
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receiving ultrasonic energy at the receiver for a first dwell time; and sending a power requirement to the sender causing the sender to adjust the first dwell time of the sender on the receiver to a second dwell time; and receiving ultrasonic energy at the receiver for a second dwell time. - View Dependent Claims (9)
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Specification