WIRELESS POWER APPARATUS AND METHODS
First Claim
Patent Images
1. A method, comprising:
- inducing power into a near field magnetic field of a transmitting antenna; and
operating the transmitting antenna along with a receiving antenna, to couple the power magnetically to a receiving antenna that has at least one characteristic that is matched to the transmitting antenna; and
tuning at least one of said antennas to improve a matching therebetween.
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Abstract
Wireless energy transfer system. Antennas are maintained at resonance with High Q. Techniques of maintaining the high-Q resonance matching are disclosed.
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Citations
83 Claims
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1. A method, comprising:
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inducing power into a near field magnetic field of a transmitting antenna; and operating the transmitting antenna along with a receiving antenna, to couple the power magnetically to a receiving antenna that has at least one characteristic that is matched to the transmitting antenna; and tuning at least one of said antennas to improve a matching therebetween. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18)
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19. A wireless power transmitter, comprising:
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a power transmitter, that produces power to be transmitted wirelessly over a magnetic link; and an inductive loop antenna part, having at least one capacitive part connected to said inductive loop part, wherein said capacitive part is sized to withstand at least 2 KV of reactive voltage. - View Dependent Claims (20, 21, 22, 23, 24, 25, 26, 27, 28, 29, 30, 31, 32, 33, 34, 35, 36, 37)
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38. A wireless power receiver, comprising:
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an inductive loop antenna part, having at least one capacitive part connected to said inductive loop part, wherein said capacitive part is sized to withstand at least 2 KV of reactive voltage; and a power receiver, coupled to receive power from said inductive loop antenna part, that has been transmitted wirelessly over a magnetic link. - View Dependent Claims (39, 40, 41, 42, 43, 44, 45, 46, 47, 48, 49, 50, 52, 53, 54, 55)
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56. A wireless power transmitter, comprising:
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a power transmitter connection, that receives energy to be transmitted wirelessly over a magnetic link; a first coupling antenna part, electrically connected to receive said energy; and a second antenna part, electrically disconnected from said first coupling part and from said power transmitter connection, and operating to transmit, magnetically, said energy. - View Dependent Claims (57, 58, 59, 60, 61, 62, 63, 64)
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65. A method, comprising:
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transmitting power from a transmitting antenna to a receiving antenna; automatically detecting a detuning event that detunes a relationship between said transmitting antenna and receiving antenna; and responsive to said detecting, automatically taking an action to change a characteristic of said transmitting. - View Dependent Claims (66, 67)
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68. A wireless power transmitter, comprising:
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a power transmitter connection, that receives energy to be transmitted wirelessly over a magnetic link; at least one antenna part formed of a single loop of conductive material; and a capacitor part, having a value to match an L and C value of the antenna to a frequency of said power transmitter. - View Dependent Claims (69, 70)
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71. A method, comprising:
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magnetically transmitting power from a transmitting antenna to a receiving antenna, where each of said antennas has a Q value for a specified frequency, greater than 1000; and tuning said antennas to maintain resonance at said specified frequency.
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72. A method comprising:
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forming a radiated magnetic field with energy therein using a transmitting antenna with a Q value greater than 1000; extracting energy from the radiated field of the transmitting antenna, at a receiving antenna location that is unconnected to said transmitting antenna by any wires; and using said energy in an electronic device that is unconnected to said transmitting antenna by any wires. - View Dependent Claims (73, 74, 75, 76, 77)
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78. An apparatus comprising:
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a receiving antenna, operative to extract energy from a radiated field at a receiving antenna location that is unconnected to any transmitting antenna by any wires; and a power system, using said energy in an electronic device that is unconnected to said transmitting antenna by any wires. - View Dependent Claims (79, 80, 81, 82, 83)
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Specification