POWER FEEDING DEVICE, POWER RECEIVING DEVICE AND WIRELESS POWER FEEDING SYSTEM
First Claim
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1. A power feeding device comprising:
- a power transmitter adapted to generate a plurality of transmission signals at different frequencies including at least power to be fed;
a power feeding element that is fed with transmission signals including power generated by the power transmitter; and
a plurality of resonance elements that have different resonance frequencies and are provided where they can be coupled with the power feeding element by electromagnetic induction.
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Abstract
Disclosed herein is a power feeding device including a power transmitter adapted to generate a plurality of transmission signals at different frequencies including at least power to be fed; a power feeding element that is fed with transmission signals including power generated by the power transmitter; and a plurality of resonance elements that have different resonance frequencies and are provided where they can be coupled with the power feeding element by electromagnetic induction.
59 Citations
17 Claims
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1. A power feeding device comprising:
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a power transmitter adapted to generate a plurality of transmission signals at different frequencies including at least power to be fed; a power feeding element that is fed with transmission signals including power generated by the power transmitter; and a plurality of resonance elements that have different resonance frequencies and are provided where they can be coupled with the power feeding element by electromagnetic induction. - View Dependent Claims (2, 3, 4, 5, 6)
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7. A power receiving device comprising:
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a plurality of resonance elements having different resonance frequencies adapted to receive transmission signals including power transmitted by magnetic field resonance relationship; a power feeding element that is fed with power received as a result of coupling with the resonance elements by electromagnetic induction; and a power receiver adapted to process the reception signals including power received by the power feeding element. - View Dependent Claims (8, 9, 10, 11, 12)
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13. A wireless power feeding system comprising:
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a power feeding device; and a power receiving device adapted to receive, by magnetic field resonance relationship, transmission signals including power transmitted from the power feeding system, the power feeding device including a power transmitter adapted to generate a plurality of transmission signals at different frequencies including at least power to be fed, a power feeding element that is fed with transmission signals including power generated by the power transmitter, and at least one resonance element that is provided where it can be coupled with the power feeding element by electromagnetic induction, and the power receiving device including at least one resonance element adapted to receive transmission signals including power transmitted by magnetic field resonance relationship, a power feeding element that is fed with power received as a result of coupling with the resonance element by electromagnetic induction, and a power receiver adapted to process the reception signals including power received by the power feeding element, wherein at least one of the resonance elements of the power feeding device and power receiving device includes a plurality of resonance elements having different resonance frequencies. - View Dependent Claims (14, 15, 16, 17)
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Specification