Wireless energy transmission apparatus and method, and wireless energy reception apparatus
First Claim
1. A wireless energy transmission apparatus for wirelessly transmitting energy through resonance between a source resonator and a target resonator, the apparatus comprising:
- a scanning unit configured to scan an amount of energy stored in the source resonator for a scanning period; and
an induced energy estimating unit configured to calculate a total amount of energy stored in the source resonator and the target resonator during an off-resonant interval between the source resonator and the target resonator based on the amount of energy scanned by the scanning unit, and estimate an amount of energy induced in the target resonator based on the amount of energy stored in the source resonator and the total amount of energy calculated.
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Abstract
A wireless energy transmission apparatus wirelessly transmits energy through resonance between a source resonator and a target resonator. The apparatus scans an amount of energy stored in the source resonator for a scanning period, calculates a total amount of energy stored in the source resonator and the target resonator during an off-resonant interval between the source resonator and the target resonator based on the amount of energy scanned, and estimates an amount of energy induced in the target resonator based on the amount of energy stored in the source resonator and the total amount of energy calculated.
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Citations
30 Claims
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1. A wireless energy transmission apparatus for wirelessly transmitting energy through resonance between a source resonator and a target resonator, the apparatus comprising:
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a scanning unit configured to scan an amount of energy stored in the source resonator for a scanning period; and an induced energy estimating unit configured to calculate a total amount of energy stored in the source resonator and the target resonator during an off-resonant interval between the source resonator and the target resonator based on the amount of energy scanned by the scanning unit, and estimate an amount of energy induced in the target resonator based on the amount of energy stored in the source resonator and the total amount of energy calculated. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14)
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15. A wireless energy transmission apparatus comprising a source resonator configured to wirelessly transmit energy to and receive energy from a target resonator through resonance between the source resonator and the target resonator, the apparatus comprising:
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a scanning unit configured to scan an amount of energy stored in the source resonator for a scanning period; and a control unit configured to change a resonant frequency of the source resonator at a time when the amount of energy scanned reaches a predetermined reference value. - View Dependent Claims (16, 17, 18)
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19. A wireless energy reception apparatus comprising:
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a receiving unit configured to receive wireless energy from a source resonator through resonance between the source resonator and a target resonator; and a control unit configured to determine whether the source resonator is present based on whether the receiving unit receives the wireless energy, and control operation of a first receiving end switch and a second receiving end switch by determining whether an amount of energy stored in a load is less than a predetermined threshold. - View Dependent Claims (20, 21, 22)
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23. A wireless energy transmission method for wirelessly transmitting energy through resonance between a source resonator and a target resonator, the method comprising:
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scanning an amount of energy stored in the source resonator for a scanning period; calculating a total amount of energy stored in the source resonator and the target resonator during an off-resonant interval between the source resonator and the target resonator based on the amount of energy scanned; and estimating an amount of energy induced in the target resonator based on the amount of energy stored in the source resonator and the total amount of energy calculated. - View Dependent Claims (24, 25, 26)
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27. A wireless energy transmission apparatus for wirelessly transmitting energy through resonance between a source resonator and a target resonator, the apparatus comprising:
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an induced energy estimating unit configured to estimate an amount of energy induced in the target resonator during the resonance between the source resonator and the target resonator; and a control unit configured to synchronize an operation of a transmitting end switch configured to connect the source resonator to a power source configured to supply power to the source resonator with an operation of a receiving end switch configured to connect the target resonator to a load based on the estimated amount of energy induced in the target resonator. - View Dependent Claims (28, 29, 30)
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Specification