Wireless electric field power transfer system, method, transmitter and receiver therefor
AssigneeSolace Power Inc.
InventorsNagesh POLU, Mohammed Jahangir ALAM, Sheikh Mominul ISLAM, Nima SOLTANI
Life of this patent
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Abstract
A wireless electric field power transmission system comprises: a transmitter comprising a transmitter antenna, the transmitter antenna comprising at least two conductors defining a volume therebetween; and at least one receiver, wherein the transmitter antenna transfers power wirelessly via electric field coupling when the at least one receiver is within the volume.
Claims23
(canceled)
A transmitter for wirelessly transmitting power, the transmitter comprising:
- an antenna for creating an electric field, the antenna comprising at least one conductor;
- a coil connected to the antenna;
- and
- a resonator connected to the coil for resonating the coil and the conductor at a resonant frequency, the resonator comprising a tuning circuit having a sensor configured to sense an output at the antenna, wherein the antenna receives a feedback signal based on the sensed output.
A method of tuning a transmitter for wirelessly transmitting power, the method comprising:
- providing an antenna for creating an electric field, the antenna connected to a coil, wherein the antenna comprises at least one conductor;
- resonating the conductor and the coil at a start-up frequency;
- and
- sensing an output at the antenna.
A wireless electric field power transmission system for powering a load, the system comprising:
- a transmitter for wirelessly transmitting power, the transmitter comprising:
- a transmitter antenna for creating an electric field, the transmitter antenna comprising at least one conductor;
- a transmitter coil connected to the transmitter antenna;
- and
- a resonator connected to the transmitter coil for resonating the transmitter coil and the conductor of the transmitter antenna at a resonant frequency, the resonator comprising a tuning circuit having a sensor configured to sense an output at the transmitter antenna, wherein the antenna receives a feedback signal based on the sensed output;
- and
- a receiver for receiving wirelessly transmitted power from the transmitter, the receiver comprising:
- a receiver antenna comprising at least two conductor, the receiver antenna configured to receive power from the transmitter antenna via resonant electric field coupling;
- a receiver coil connected to the receiver antenna;
- and
- a power harvester connected to the receiver coil, the power harvester configured to extract power received by the receiver antenna.
Dependencies are inferred from the claim text.