WIRELESS POWER TRANSMISSION APPARATUS AND WIRELESS POWER TRANSMISSION METHOD
First Claim
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1. A wireless power transmission apparatus comprising:
- a source resonator to transmit resonance power to a target resonator;
a coupling unit to couple a reflected signal with respect to the transmitted resonance power;
a resonance point detecting unit to scan a frequency of the reflected signal to detect a resonance point; and
an impedance control unit to adjust an impedance of the source resonator based on the detected resonance point.
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Abstract
Provided is a wireless power transmission apparatus and method. The wireless power transmission apparatus may include a coupling unit to couple a reflected signal with respect to a transmitted resonance power, and a resonance point detecting unit to scan a frequency of the reflected signal to detect a resonance point. A resonance frequency of the source resonator may be controlled using the detected resonance point.
72 Citations
14 Claims
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1. A wireless power transmission apparatus comprising:
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a source resonator to transmit resonance power to a target resonator; a coupling unit to couple a reflected signal with respect to the transmitted resonance power; a resonance point detecting unit to scan a frequency of the reflected signal to detect a resonance point; and an impedance control unit to adjust an impedance of the source resonator based on the detected resonance point. - View Dependent Claims (2, 3, 4, 5, 6)
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7. A wireless power transmission method comprising:
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performing frequency scanning with respect to a reflected signal of a transmitted resonance power; detecting a resonance point using a performance result of the frequency scanning; and adjusting an impedance of a source resonator based on the detected resonance point. - View Dependent Claims (8, 9, 10, 11, 12)
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13. A wireless power receiving device comprising:
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a target resonator configured to receive power wirelessly from a source resonator; and a load configured to consume the wireless power received from the source resonator, wherein the wireless power receiving device reflects a portion of the wireless power received from the source resonator, and the target resonator is further configured to receive wireless power from the source resonator that has a change in impedance based on the reflected portion of the wireless power. - View Dependent Claims (14)
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Specification