Receiving controller for wireless power transfer
AssigneeuBeam Inc.
InventorMeredith Perry
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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.
Claims7
A system having a first value of a configuration parameter, comprising:
- a receiver transducer adapted and configured to receive waves generated by the sender transducer and to generate a receiver electrical signal based on the received waves;
- and
- a receiver controller coupled to the receiver transducer, the receiver controller causing the receiver to receive energy having a first phase based on the first value of the configuration parameter, the energy having the first phase being converted into electrical energy by the receiver transducer at a first efficiency, to receive energy based on a second value of the configuration parameter, the energy having the second phase being converted into electrical energy by the receiver transducer at a second efficiency wherein the second efficiency is different than the first efficiency.
A method for controlling a transducer at a receiver having at least a first value of a configuration parameter, comprising:
- causing the receiver transducer to receive energy having a first phase based on the first value of the configuration parameter, the energy having the first phase being converted to electrical energy by the receiver transducer at a first efficiency;
- and
- causing the receiver transducer to receive energy having a second phase based on a second value of the configuration parameter, the energy having the second phase being converted into electrical energy by the receiver transducer at a second efficiency, wherein the second efficiency is different than the first efficiency.
Dependencies are inferred from the claim text.