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US 2022/0368164 A1Published application
Fm scavenging for wireless charging of electric vehicles and other devices
AssigneeAntenum, Inc.
InventorsJames D. Logan, John T. Apostolos, William Mouyos, Jeffrey Logan
Life of this patent
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Abstract
An apparatus, system, and method directed to the charging of electronic devices, and in particular to the wireless charging of battery enabled devices using FM band signals
Claims22
An apparatus for charging an electric vehicle, the apparatus comprising:
- at least one antenna element, disposed in a loop or in a portion of a loop;
- a detector, coupled to the antenna, for detecting radio frequency energy in a Frequency Modulation (FM) broadcast band, the detector further comprising a first type of detector and a second type of detector;
- a controller, coupled to the detector, for providing an output indicating whether the first type of detector or the second type of detector provides a higher signal strength;
- a rectifier, coupled to the controller, and selectively coupled to either the first type of detector or the second type of detector, depending on the output of the controller, for providing a direct current output;
- and
- an energy storage device, coupled to be charged by the direct current output provided by the rectifier.
3 more elements
A method for charging an electric vehicle, the method comprising:
- receiving, via at least one antenna element having a loop shape or a portion of a loop shape, a received radio signal;
- detecting the received radio signal including detecting a first mode signal and a second mode signal;
- determining whether the first mode signal or the second mode signal has higher signal strength;
- selectively generating a direct current output from either the first mode signal or the second mode signal, depending on which has the higher signal strength;
- and
- charging an energy storage device by using the direct current output.
3 more elements
An apparatus for charging an electric vehicle, the apparatus comprising:
- a first antenna element, disposed in a loop or in a portion of a loop within the vehicle, and arranged to receive radio frequency energy emitted from a second antenna element external to the vehicle, the second antenna element disposed in a loop or in a portion of a loop;
- a detector, coupled to the antenna, for detecting the radio frequency energy, the detector further comprising an electric dipole mode detector;
- a rectifier, coupled to the electric dipole mode detector. for providing a direct current output;
- an automatic tuner, coupled to the first antenna element, arranged to compensate for impedance mismatch caused by alignment of the first and second antennas;
- and
- an energy storage device, coupled to be charged by the direct current output provided by the rectifier.
3 more elements
Dependencies are inferred from the claim text.