System and method for wireless power reception
AssigneeSupply, Inc.
InventorChristopher Joseph Davlantes
Life of this patent
Estimating the term…
Abstract
A system for wireless power reception, preferably including one or more: antennas, dynamic impedance matches, RF-DC converters, DC impedance converters, and/or DC power outputs. A method for wireless power reception, preferably including: receiving power wirelessly at an antenna, dynamically adjusting an input impedance of a dynamic impedance match coupled to the antenna, and/or delivering the power to a load.
Claims21
A method for receiving radio frequency (RF) power at a receiver comprising an antenna, an impedance tuning network, a power measurement network, and a control network, the method comprising:
- at the antenna, receiving RF power, wherein the antenna is electrically coupled to an RF power input of the impedance tuning network, the RF power input associated with an RF input impedance;
- coupling the RF power to the power measurement network via the impedance tuning network;
- in response to coupling the RF power to the power measurement network, at the power measurement network, outputting a feedback signal to the control network, the feedback signal indicative of a power metric associated with the RF power;
- at the control network, determining a control signal based on the feedback signal and a power optimization algorithm;
- at the control network, outputting the control signal to the impedance tuning network, wherein the RF input impedance of the impedance tuning network is modified by the control signal;
- and
- delivering a portion of the RF power to an RF output via the impedance tuning network.
A radio frequency (RF) power receiver comprising:
- an antenna;
- an impedance tuning network comprising:
- an RF power input electrically coupled to the antenna, wherein the RF power input is associated with an RF input impedance;
- a tuning network output electrically coupled to the RF power input;
- and
- a control input electrically coupled between the RF power input and the tuning network output;
- a power measurement network comprising:
- a power coupler comprising an input port, a transmitted port, and a coupled port, wherein the input port is electrically connected to the tuning network output;
- and
- an RF power detector comprising a detector input and a signal output, the detector input electrically coupled to the coupled port;
- a control network comprising:
- a control network input electrically connected to the signal output;
- and
- a control network output electrically coupled to the control input of the tuning network, wherein the control network is configured to output a control signal at the control network output, thereby modifying the RF input impedance of the impedance tuning network;
- and
- an electrical load electrically coupled to the transmitted port.
Dependencies are inferred from the claim text.