Apparatus and method for wireless power transmission
First Claim
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1. A wireless power transmitter comprising:
- a source resonator configured to wirelessly transmit power to a target device;
at least one sub-resonator positioned inside of the source resonator; and
a controller configured to determine a direction of current flowing in the at least one sub-resonator based on a radio between a resonance frequency of the source resonator and a resonance frequency of the at least one sub-resonator,wherein a distribution of a magnetic field is controlled based on the direction.
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Abstract
An apparatus and method for controlling a magnetic field when power is wirelessly transmitted are provided. According to one general aspect, a wireless power transmitter may include: a source resonator configured to wirelessly transmit power to a target device including at least one sub-resonator located there within; and a magnetic field distribution controller configured to control the distribution of the magnetic field within the resonator based the resonance frequency of the at least one sub-resonator and the resonance frequency of the source resonator.
10 Citations
20 Claims
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1. A wireless power transmitter comprising:
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a source resonator configured to wirelessly transmit power to a target device; at least one sub-resonator positioned inside of the source resonator; and a controller configured to determine a direction of current flowing in the at least one sub-resonator based on a radio between a resonance frequency of the source resonator and a resonance frequency of the at least one sub-resonator, wherein a distribution of a magnetic field is controlled based on the direction. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15)
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16. A wireless power transmission method comprising:
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wirelessly transmitting power to a target device via a source resonator; determining a direction of current flowing in at least one sub-resonator based on a ratio between a resonance frequency of the source resonator and a resonance frequency of the at least one sub-resonator, the at least one sub-resonator positioned inside of the source resonator, wherein a distribution of a magnetic field is controlled based on the direction. - View Dependent Claims (17, 18, 19, 20)
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Specification