Wireless power transmission and reception system
First Claim
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1. A wireless power transmitter comprising:
- a detecting unit configured to detect a plurality of target devices;
a controller configured to determine a plurality of resonance frequencies between a source resonator and the plurality of detected target devices; and
a source resonance unit configured to transmit power of the determined plurality of resonance frequencies to the plurality of detected target devices,wherein the controller is further configured to;
assign duty cycles to the plurality of detected target devices, each of the duty cycles corresponding to each of the plurality of detected target devices,control the source resonance unit to transmit the power to the plurality of detected target devices based on the duty cycles, andadjust an amount of the power by adjusting the duty cycles based on state information of thebplurality of detected target devices.
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Abstract
A wireless power transmission method and a wireless power transmitter are provided that may selectively transmit wireless power to a plurality of target devices. According to an aspect, a wireless power transmitter may include: a detecting unit configured to detect a plurality of target devices; a controller configured to determine a plurality of resonance frequencies between a source resonator and the plurality of detected target devices and to control the plurality of resonance frequencies to transmit the power to the plurality of detected target devices; and a source resonance unit configured to transmit the power to the plurality of detected target devices.
14 Citations
28 Claims
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1. A wireless power transmitter comprising:
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a detecting unit configured to detect a plurality of target devices; a controller configured to determine a plurality of resonance frequencies between a source resonator and the plurality of detected target devices; and a source resonance unit configured to transmit power of the determined plurality of resonance frequencies to the plurality of detected target devices, wherein the controller is further configured to; assign duty cycles to the plurality of detected target devices, each of the duty cycles corresponding to each of the plurality of detected target devices, control the source resonance unit to transmit the power to the plurality of detected target devices based on the duty cycles, and adjust an amount of the power by adjusting the duty cycles based on state information of thebplurality of detected target devices. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14)
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15. A wireless power receiver comprising:
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a target resonance unit configured to receive power from a source resonator of a wireless power transmitter; and a controller configured to determine a resonance frequency between the source resonator and the wireless power receiver, wherein the target resonance unit configured to receive, from the source resonator, the power of the determined resonance frequency during a duty cycle assigned to the wireless power receiver, and wherein an amount of the power is adjusted based on an adjustment of the duty cycle according to state information of the wireless power receiver. - View Dependent Claims (16, 17, 18)
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19. A wireless power transmission method, the method comprising:
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detecting a plurality of target devices; determining a plurality of resonance frequencies between a source resonator and the plurality of detected target devices; controlling the plurality of resonance frequencies to transmit power to the plurality of detected target devices; assigning duty cycles to the plurality of detected target devices, each of the duty cycles corresponding to each of the plurality of detected target devices; transmitting the power of the determined plurality of resonance frequencies to the plurality of detected target devices based on the duty cycles; and adjusting adjust an amount of the power by adjusting the duty cycles based on state information of the plurality of detected target devices. - View Dependent Claims (20, 21, 22, 23, 24, 25)
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26. A wireless power reception method, the method comprising:
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determining a resonance frequency between a source resonator and a wireless power receiver; and receiving, from the source resonator, power of the determined resonance frequency during a duty cycle assigned to the wireless power receiver, wherein an amount of the power is adjusted based on an adjustment of the duty cycle according to state information of the wireless power receiver. - View Dependent Claims (27, 28)
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Specification