DEVICE AND METHOD FOR WIRELESSLY TRANSMITTING POWER
First Claim
1. A wireless power transmitting device comprising:
- a first power transmitting coil configured to transmit a first power signal;
a second power transmitting coil configured to transmit a second power signal, the second power transmitting coil being concentrically layered with the first power transmitting coil; and
a power supply unit configured to supply alternating current powers to the first power transmitting coil and the second power transmitting coil so as to allow the first power signal and the second power signal to have a phase difference of 180°
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Accused Products
Abstract
There are provided a device and a method for wirelessly transmitting a power in which a power is wirelessly transmitted to a power receiving device with high transmission efficiency. The wireless power transmitting device includes a first power transmitting coil configured to transmit a first power signal, a second power transmitting coil that is concentrically layered with the first power transmitting coil to transmit a second power signal, and a power supply unit configured to supply alternating current powers to the first power transmitting coil and the second power transmitting coil so as to allow the first power signal and the second power signal to have a phase difference of 180°.
37 Citations
20 Claims
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1. A wireless power transmitting device comprising:
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a first power transmitting coil configured to transmit a first power signal; a second power transmitting coil configured to transmit a second power signal, the second power transmitting coil being concentrically layered with the first power transmitting coil; and a power supply unit configured to supply alternating current powers to the first power transmitting coil and the second power transmitting coil so as to allow the first power signal and the second power signal to have a phase difference of 180°
. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14)
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15. A method for wirelessly transmitting a power comprising:
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determining, by a power transmitting controller, whether or not a power is wirelessly transmitted to a power receiving device; generating, by the power transmitting controller, a PWM control signal for power transmission when the power is wirelessly transmitted to the power receiving device; and generating, by first and second transmitting coils that are layered, first and second power signals having a phase difference of 180°
from each other in response to the PWM control signal to wirelessly transmit the power to the power receiving device. - View Dependent Claims (16, 17, 18, 19, 20)
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Specification