WIRELESS POWER TRANSMISSION SYSTEM AND METHOD FOR INCREASING COUPLING EFFICIENCY BY ADJUSTING RESONANT FREQUENCY
First Claim
1. A device of a wireless power transmission system, the device comprising:
- a resonator configured to transmit a wireless power;
a communication unit configured to receive information from another device; and
a controller configured todetermine a power transmission efficiency based on the information, andadjust a resonant frequency of the device, a resonant frequency of a relay device, and a resonant frequency of the other device, if the power transmission efficiency is less than or equal to a predetermined reference efficiency.
1 Assignment
0 Petitions
Accused Products
Abstract
A wireless power transmission system and a method for increasing a coupling efficiency by adjusting a resonant frequency are provided. A device of the wireless power transmission system includes a resonator configured to transmit a wireless power, and a communication unit configured to receive information from another device. The device further includes a controller configured to determine a power transmission efficiency based on the information, and adjust a resonant frequency of the device, a resonant frequency of a relay device, and a resonant frequency of the other device, if the power transmission efficiency is less than or equal to a predetermined reference efficiency.
-
Citations
20 Claims
-
1. A device of a wireless power transmission system, the device comprising:
-
a resonator configured to transmit a wireless power; a communication unit configured to receive information from another device; and a controller configured to determine a power transmission efficiency based on the information, and adjust a resonant frequency of the device, a resonant frequency of a relay device, and a resonant frequency of the other device, if the power transmission efficiency is less than or equal to a predetermined reference efficiency. - View Dependent Claims (2, 3, 4, 5, 6, 7)
-
-
8. A device of a wireless power transmission system, the device comprising:
-
a resonator configured to receive a wireless power; a communication unit configured to transmit information to another device, and receive a resonant frequency adjustment message from the other device; and a controller configured to adjust a resonant frequency of the resonator based on the resonant frequency adjustment message. - View Dependent Claims (9, 10, 11)
-
-
12. A method in a device of a wireless power transmission system, the method comprising:
-
transmitting a wireless power; receiving information from another device; determining a power transmission efficiency based on the information; and adjusting a resonant frequency of the device, a resonant frequency of a relay device, and a resonant frequency of the other device, if the power transmission efficiency is less than or equal to a predetermined reference efficiency. - View Dependent Claims (13, 14, 15, 16)
-
-
17. A method in a device of a wireless power transmission system, the method comprising:
-
receiving a wireless power; transmitting information to another device; receiving a resonant frequency adjustment message from the other device; and adjusting a resonant frequency of a resonator based on the resonant frequency adjustment message. - View Dependent Claims (18)
-
-
19. A wireless power transmission system comprising:
-
a first device configured to transmit a wireless power, determine a power transmission efficiency, adjust a resonant frequency of the first device, a resonant frequency of a relay device, and a resonant frequency of a second device, if the power transmission efficiency is less than or equal to a predetermined reference efficiency, and transmit the adjusted resonant frequency of the relay device and the adjusted resonant frequency of the second device to the relay device and the second device, respectively; the relay device configured to relay the wireless power based on the adjusted resonant frequency of the relay device; and the second device configured to receive the wireless power based on the adjusted resonant frequency of the second device. - View Dependent Claims (20)
-
Specification