Wireless power transmission for electronic devices
First Claim
Patent Images
1. A wireless power receiver, comprising:
- a receive antenna configured to receive wireless power from a magnetic field, the receive antenna including;
a first resonant circuit; and
a second resonant circuit wirelessly coupled to the first resonant circuit, the second resonant circuit being configured to relay received wireless power to the first resonant circuit.
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Accused Products
Abstract
Exemplary embodiments are directed to wireless power transfer. A wireless power receiver includes a receive antenna for coupling with a transmit antenna of transmitter generating a magnetic near field. The receive antenna receives wireless power from the magnetic near field and includes a resonant tank and a parasitic resonant tank wirelessly coupled to the resonant tank. A wireless power transmitter includes a transmit antenna for coupling with a receive antenna of a receiver. The transmit antenna generates a magnetic near field for transmission of wireless power and includes a resonant tank and a parasitic resonant tank coupled to the resonant tank.
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Citations
23 Claims
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1. A wireless power receiver, comprising:
a receive antenna configured to receive wireless power from a magnetic field, the receive antenna including; a first resonant circuit; and a second resonant circuit wirelessly coupled to the first resonant circuit, the second resonant circuit being configured to relay received wireless power to the first resonant circuit. - View Dependent Claims (2, 3, 4, 5)
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6. A wireless power transmitter, comprising:
a transmit antenna configured to generate a magnetic field for transmission of wireless power, the transmit antenna including; a first resonant circuit; and a second resonant circuit wirelessly coupled to the first resonant circuit, the second resonant circuit being configured to relay wireless power received from the first resonant circuit to a receive antenna comprising a third resonant circuit. - View Dependent Claims (7, 8, 9, 10)
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11. A wireless power transmission system, comprising:
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a transmitter including a transmit antenna for generating a magnetic field for transmission of wireless power, the transmit antenna including a first resonant circuit; a receiver including a receive antenna for coupling with the transmit antenna to receive the wireless power from the magnetic field, the receive antenna including a second resonant circuit; and a third resonant circuit wirelessly coupled to one of the first and second resonant circuits, the third resonant circuit being configured to relay wireless power from or to one of the first and second resonant circuits. - View Dependent Claims (12, 13, 14, 15)
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16. A method for receiving wireless power, comprising:
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receiving at a first resonant circuit of a receive antenna wireless power in a magnetic field generated by a transmit antenna when the receive antenna and the transmit antenna are within a proximity that is less than a distance away; receiving at a second resonant circuit of the receive antenna the wireless power of the magnetic field generated by the transmit antenna when the receive antenna and the transmit antenna are within a vicinity that is greater than the distance away, the second resonant circuit being wirelessly coupled to the first resonant circuit and being configured to relay received wireless power to the first resonant circuit; and rectifying the wireless power. - View Dependent Claims (17, 18)
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19. A method for transmitting wireless power, comprising:
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generating at a first resonant circuit of a transmit antenna wireless power in a magnetic field when a receive antenna and the transmit antenna are within a proximity that is less than a distance away; and generating at a second resonant circuit of the transmit antenna the wireless power of the magnetic field when the receive antenna and the transmit antenna are within a vicinity that is greater than the distance away, the second resonant circuit being wirelessly coupled to the first resonant circuit and being configured to relay wireless power received from the first resonant circuit. - View Dependent Claims (20, 21)
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22. A wireless power receiver, comprising:
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means for receiving at a first resonant circuit of a receive antenna wireless power in a magnetic field generated by a transmit antenna when the receive antenna and the transmit antenna are within a proximity that is less than a distance away; means for receiving at a second resonant circuit of the receive antenna the wireless power of the magnetic field generated by the transmit antenna when the receive antenna and the transmit antenna are within a vicinity that is greater than the distance away, the second resonant circuit being wireless coupled to the first resonant circuit and being configured to relay received wireless power to the first resonant circuit; and means for rectifying the wireless power.
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23. A wireless power transmitter, comprising:
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means for generating at a first resonant circuit of a transmit antenna wireless power in a magnetic field when a receive antenna and the transmit antenna are within a proximity that is less than a distance away; and means for at a second resonant circuit of the transmit antenna the wireless power of the magnetic field when the receive antenna and the transmit antenna are within a vicinity that is greater than the distance away, the second resonant circuit being wirelessly coupled to the first resonant circuit and being configured to relay wireless power received from the first resonant circuit.
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Specification