Wireless power transmission system and wireless power transmission method
First Claim
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1. A wireless power transfer system comprising:
- a plurality of power sources; and
a power receiver,power transfer from at least one of the plurality of power sources to the power receiver being performed in wireless by using magnetic field resonance or electric field resonance, whereinthe power receiver is configured to communicate with the plurality of power sources;
one of the plurality of power sources is designated as a master power source and the other one or more power sources are designated as slave power sources based on information of the power receiver receiving at least two of the plurality of power sources detected by the power receiver, and the at least two of the plurality of power sources are configured to transmit power to the power receiver; and
the master power source controls at least one of the plurality of power sources and performs the power transfer to the power receiver.
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Abstract
A wireless power transfer system includes a plurality of power sources and at least one power receiver, in which power transfer from the power sources to the power receiver is performed in wireless by using magnetic field resonance or electric field resonance. In the system, one of the plurality of power sources is designated as a master power source and the other one or more power sources are designated as slave power sources. In addition, the master power source controls the plurality of power sources and the at least one power receiver to perform the power transfer. This allows the system to perform the power transfer in an optimum state.
17 Citations
20 Claims
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1. A wireless power transfer system comprising:
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a plurality of power sources; and a power receiver, power transfer from at least one of the plurality of power sources to the power receiver being performed in wireless by using magnetic field resonance or electric field resonance, wherein the power receiver is configured to communicate with the plurality of power sources; one of the plurality of power sources is designated as a master power source and the other one or more power sources are designated as slave power sources based on information of the power receiver receiving at least two of the plurality of power sources detected by the power receiver, and the at least two of the plurality of power sources are configured to transmit power to the power receiver; and the master power source controls at least one of the plurality of power sources and performs the power transfer to the power receiver. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 12, 13, 14, 15)
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11. A wireless power transfer method comprising a plurality of power sources and a power receiver, in which power transfer from at least one of the plurality of power sources to the power receiver is performed in wireless by using magnetic field resonance or electric field resonance, wherein the power receiver is configured to communicate with the plurality of power sources, and the wireless power transfer method comprising:
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designating one of the plurality of power sources as a master power source and the other one or more power sources as slave power sources based on information of the power receiver receiving at least two of the plurality of power sources detected by the power receiver, and the at least two of the plurality of power sources are configured to transmit power to the power receiver; and controlling, by the master power source, the plurality of power sources and performing the power transfer to the power receiver. - View Dependent Claims (17, 18, 19, 20)
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16. A wireless power transfer system comprising:
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a plurality of power sources; and a power receiver, power transfer from at least one of the plurality of power sources to the power receiver being performed in wireless by using magnetic field resonance or electric field resonance, wherein the power receiver is configured to communicate with the plurality of power sources; one of the plurality of power sources is designated as a master power source and the other one or more power sources are designated as slave power sources based on information of at least two of the plurality of power sources detected by the power receiver, and the at least two of the plurality of power sources are configured to transmit power to the power receiver; and the master power source controls at least one of the plurality of power sources and performs the power transfer to the power receiver, wherein the plurality of power sources include a wireless power transfer unit configured to wirelessly transmit power by using magnetic field resonance or electric field resonance, respectively; and the power receiver includes a wireless power reception unit configured to receive the power wirelessly transmitted by using the magnetic field resonance or the electric field resonance, wherein the wireless power transfer system further comprises at least another one of power receiver, wherein the master power source controls an LC resonator of at least another one of power receiver not to operate when receiving a state of the battery residual capacity of zero from one of the plurality of power sources where the power receiver is contacted and charged by using electromagnetic induction coupling.
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Specification