Receiver 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 to generate ultrasonic waves;
a sender transducer coupled to the amplifier, the sender transducer adapted and configured to generate ultrasonic waves having a first phase based on the electrical transmission signal received from the amplifier; and
a sender controller coupled to at least one of the signal generator, the amplifier and the sender transducer and adapted to change the first phase to a second phase based on at least one received configuration parameter associated with phase and to change a dwell time of the sender on the receiver based on a received power requirement; and
a 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 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 wherein the communication includes a configuration parameter selected from a group consisting of;
a configuration parameter associated with phase and a power requirement.
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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.
311 Citations
9 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 to generate ultrasonic waves; a sender transducer coupled to the amplifier, the sender transducer adapted and configured to generate ultrasonic waves having a first phase based on the electrical transmission signal received from the amplifier; and a sender controller coupled to at least one of the signal generator, the amplifier and the sender transducer and adapted to change the first phase to a second phase based on at least one received configuration parameter associated with phase and to change a dwell time of the sender on the receiver based on a received power requirement; and a 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 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 wherein the communication includes a configuration parameter selected from a group consisting of;
a configuration parameter associated with phase and a power requirement.
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2. 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; and 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 based upon a configuration parameter selected from a group consisting of;
a configuration parameter associated with phase that causes the sender to change a first phase of the ultrasonic waves to a second phase and a power requirement that causes the sender to change a dwell time of the sender. - View Dependent Claims (3, 4, 5, 6, 7, 8, 9)
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Specification