Wireless power transmission system, and method of controlling transmission and reception of resonance power
First Claim
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1. A method, executed by a power receiver, of controlling wireless power reception, the method comprising:
- receiving, from a power transmitter, a first wireless power in each time interval among a plurality of time intervals, wherein a resonance frequency corresponding to the first wireless power received in each time interval is different from resonance frequencies in all other time intervals among the plurality of time intervals;
transmitting, to the power transmitter, information about an amount of the first wireless power received in each time interval; and
receiving, from the power transmitter, a second wireless power having a resonance frequency with a highest power transmission efficiency, selected based on the information about the amount of the first wireless power received in each time interval;
charging the power receiver with the received second wireless power.
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Abstract
A resonance power transmission system, and a method of controlling transmission and reception of a resonance power are provided. According to one embodiment, a method of controlling resonance power transmission in a resonance power transmitter may include: transmitting resonance power to a resonance power receiver, the resonance power having resonance frequencies which vary with respect to a plurality of time intervals; and receiving, from the resonance power receiver, information regarding the resonance frequency having the highest power transmission efficiency among the resonance frequencies used in the time intervals.
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Citations
18 Claims
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1. A method, executed by a power receiver, of controlling wireless power reception, the method comprising:
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receiving, from a power transmitter, a first wireless power in each time interval among a plurality of time intervals, wherein a resonance frequency corresponding to the first wireless power received in each time interval is different from resonance frequencies in all other time intervals among the plurality of time intervals; transmitting, to the power transmitter, information about an amount of the first wireless power received in each time interval; and receiving, from the power transmitter, a second wireless power having a resonance frequency with a highest power transmission efficiency, selected based on the information about the amount of the first wireless power received in each time interval; charging the power receiver with the received second wireless power. - View Dependent Claims (2, 3, 4)
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5. A method, executed by a power transmitter, of controlling wireless power transmission, the method comprising:
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transmitting, to a power receiver, a first wireless power in each time interval among a plurality of time intervals, wherein a resonance frequency corresponding to the first wireless power in each time interval is different from resonance frequencies in all other time intervals among the plurality of time intervals; receiving, from the power receiver, information about an amount of the first wireless power received by the power receiver in each time interval; and transmitting, to the power receiver, a second wireless power having a resonance frequency with a highest power transmission efficiency, selected based on the information about the amount of the first wireless power received in each time interval. - View Dependent Claims (6, 7, 8, 9)
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10. A power receiver comprising:
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a target resonator configured to receive a wireless power transmitted from a power transmitter; a communication unit configured to communicate with the power transmitter; and a controller configured to; control the target resonator to receive a first wireless power transmitted from the power transmitter in each time interval among a plurality of time intervals, wherein a resonance frequency corresponding to the first wireless power received in each time interval is different from resonance frequencies in all other time intervals among the plurality of time intervals, control the communication unit to transmit, to the power transmitter, information about an amount of the first wireless power received in each time interval, control the target resonator to receive a second wireless power transmitted from the power transmitter, the second wireless power having a resonance frequency having a highest power transmission efficiency, selected based on the information about the amount of the first wireless power received in each time interval, and control to charge the power receiver with the received second wireless power. - View Dependent Claims (11, 12, 13)
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14. A power transmitter comprising:
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a source resonator configured to transmit a wireless power to a power receiver; a communication unit configured to communicate with the power receiver; and a controller configured to; control the source resonator to transmit, to the power receiver, a first wireless power in each time interval among a plurality of time intervals, wherein a resonance frequency corresponding to the first wireless power in each time interval is different from resonance frequencies in all other time intervals among the plurality of time intervals, control the communication unit to receive, from the power receiver, information about an amount of the first wireless power received by the power receiver in each time interval, control to generate a second wireless power having a resonance frequency having a highest power transmission efficiency, selected based on the received information about the amount of the first wireless power received in each time interval, and control the source resonator to transmit the second wireless power to the power receiver. - View Dependent Claims (15, 16, 17, 18)
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Specification