POWER RECEIVING DEVICE, POWER SUPPLY SYSTEM, AND METHOD FOR SUPPLYING POWER
First Claim
1. A power supply system comprising:
- a power transmitting device comprising a power transmitting resonance coil; and
a power receiving device comprising a power receiving resonance coil,wherein the power transmitting device comprises means for transmitting an invalidation signal to the power receiving device, andwherein the power receiving device comprises means for changing a self resonant frequency of the power receiving resonance coil so as to prevent the power receiving resonance coil from resonating with the power transmitting resonance coil upon receiving the invalidation signal.
1 Assignment
0 Petitions
Accused Products
Abstract
A power transmitting system in which power can be successfully supplied by magnetic resonance from a power transmitting device to a selected power receiving device among a plurality of power receiving devices. The power receiving device includes a variable unit which can change the self resonant frequency of a resonance coil in accordance with an invalidation signal transmitted from the power transmitting device. Thus, even in the case where the plurality of power receiving devices are provided for one power transmitting device, the self resonant frequencies of the resonance coils included in the power receiving devices which are not to be supplied with power are changed to avoid resonance with the power transmitting device. Consequently, power can be successfully and selectively supplied to the power receiving devices to be supplied with power.
12 Citations
25 Claims
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1. A power supply system comprising:
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a power transmitting device comprising a power transmitting resonance coil; and a power receiving device comprising a power receiving resonance coil, wherein the power transmitting device comprises means for transmitting an invalidation signal to the power receiving device, and wherein the power receiving device comprises means for changing a self resonant frequency of the power receiving resonance coil so as to prevent the power receiving resonance coil from resonating with the power transmitting resonance coil upon receiving the invalidation signal. - View Dependent Claims (2, 3, 4)
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5. A power supply system comprising:
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a power transmitting device comprising a power transmitting resonance coil; and a plurality of power receiving devices each comprising a power receiving resonance coil, wherein the power transmitting device comprises means for transmitting an invalidation signal to the plurality of power receiving devices, and wherein each of the plurality of power receiving devices comprises means for changing a self resonant frequency of the power receiving resonance coil so as to prevent the power receiving resonance coil from resonating with the power transmitting resonance coil upon receiving the invalidation signal. - View Dependent Claims (6, 7, 8, 9)
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10. A power supply system comprising:
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a power transmitting device comprising a power transmitting resonance coil; and a power receiving device comprising a power receiving resonance coil, wherein the power transmitting device is capable of transmitting an invalidation signal to the power receiving device, and wherein the power receiving device is capable of changing a self resonant frequency of the power receiving resonance coil so as to prevent the power receiving resonance coil from resonating with the power transmitting resonance coil upon receiving the invalidation signal. - View Dependent Claims (11, 12, 13)
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14. A power supply system comprising:
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a power transmitting device comprising a power transmitting resonance coil; and a plurality of power receiving devices each comprising a power receiving resonance coil, wherein the power transmitting device is capable of transmitting an invalidation signal to the plurality of power receiving devices, and wherein each of the plurality of power receiving devices is capable of changing a self resonant frequency of the power receiving resonance coil so as to prevent the power receiving resonance coil from resonating with the power transmitting resonance coil upon receiving the invalidation signal. - View Dependent Claims (15, 16, 17, 18)
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19. A method for supplying power from a power transmitting device to a power receiving device, the method comprising the steps of:
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transmitting an invalidation signal from the power transmitting device to the power receiving device; and changing a self resonant frequency of a power receiving resonance coil of the Power receiving device so as to prevent the power receiving resonance coil from resonating with a power transmitting resonance coil of the power transmitting device when the power receiving device receives the invalidation signal. - View Dependent Claims (20, 21)
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22. A method for supplying power from a power transmitting device to a plurality of power receiving devices, the method comprising the steps of:
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transmitting an invalidation signal from the power transmitting device to at least one of the plurality of power receiving devices; and changing a self resonant frequency of a power receiving resonance coil of the one of the plurality of power receiving devices so as to prevent the power receiving resonance coil from resonating with a power transmitting resonance coil of the power transmitting device when the one of the plurality of power receiving devices receives the invalidation signal. - View Dependent Claims (23, 24, 25)
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Specification