SENDER TRANSDUCER FOR WIRELESS POWER TRANSFER
First Claim
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1. A system, comprising:
- a sender having a first value of a configuration parameter and 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 to generate ultrasonic waves;
a sender transducer coupled to the amplifier, the sender transducer adapted and configured to generate ultrasonic waves based on the electrical transmission signal received from the amplifier, the sender transducer including at least one capacitive micromachined ultrasound transducer;
a sender communications device adapted to receive input from a receiver communication device, the input including a second value of the configuration parameter;
a sender controller coupled to at least one of the signal generator, the amplifier and the sender transducer; and
the receiver comprising;
a receiver transducer adapted and configured to receive ultrasonic waves generated by the sender transducer 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; 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
19 Claims
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1. A system, comprising:
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a sender having a first value of a configuration parameter and 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 to generate ultrasonic waves; a sender transducer coupled to the amplifier, the sender transducer adapted and configured to generate ultrasonic waves based on the electrical transmission signal received from the amplifier, the sender transducer including at least one capacitive micromachined ultrasound transducer; a sender communications device adapted to receive input from a receiver communication device, the input including a second value of the configuration parameter; a sender controller coupled to at least one of the signal generator, the amplifier and the sender transducer; and the receiver comprising; a receiver transducer adapted and configured to receive ultrasonic waves generated by the sender transducer 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; and a receiver controller coupled to at least one of the receiver transducer and the receiver electrical storage device.
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2. 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 to generate ultrasonic waves; a sender transducer coupled to the amplifier, the sender transducer adapted and configured to generate ultrasonic waves based on the electrical transmission signal received from the amplifier, the sender transducer including at least one capacitive micromachined ultrasound transducer; and a sender controller coupled to at least one of the signal generator, the amplifier and the sender transducer. - View Dependent Claims (3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14)
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15. A method for emitting ultrasonic energy from a sender having at least a first value of a configuration parameter, comprising:
emitting ultrasonic energy in accordance with a second value of the sender configuration parameter such that the ultrasonic energy is converted into electrical energy more efficiently at the receiver than with the sender configuration parameter at the first value. - View Dependent Claims (16, 17, 18, 19)
Specification