WIRELESS POWER TRANSMITTER AND WIRELESS POWER TRANSMISSION METHOD
First Claim
1. A wireless power transmitter which wirelessly transmits a power to a wireless power receiver, the wireless power transmitter comprising:
- a transmission resonance coil for wirelessly transmitting a power;
a power source for supplying the power to the transmission resonance coil; and
a detector for detecting an existence state of the wireless power receiver,wherein the power source supplies the power with a transmission pattern which is discrete to detect the existence state of the wireless power receiver and minimize a loss of the power.
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Accused Products
Abstract
Disclosed are a wireless power transmitter which wirelessly transmits a power to a wireless power receiver. The wireless power transmitter, which wirelessly transmits a transmission resonance coil for wirelessly transmitting a power source for supplying the power to the transmission resonance coil; and a detector for detecting an existence state of the wireless power receiver, wherein the power source supplies the power with a transmission pattern which is discrete to detect the existence state of the wireless power receiver and minimize a loss of the power.
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Citations
15 Claims
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1. A wireless power transmitter which wirelessly transmits a power to a wireless power receiver, the wireless power transmitter comprising:
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a transmission resonance coil for wirelessly transmitting a power; a power source for supplying the power to the transmission resonance coil; and a detector for detecting an existence state of the wireless power receiver, wherein the power source supplies the power with a transmission pattern which is discrete to detect the existence state of the wireless power receiver and minimize a loss of the power. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8)
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9. A wireless power transmission method for wirelessly transmitting a power to a wireless power receiver, the method comprising:
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supplying the power with a transmission pattern which is discrete; generating a magnetic field using the supplied power; detecting a variation of an intensity of the magnetic field; and determining an existence state of the wireless power receiver based on the variation of the intensity of the magnetic field. - View Dependent Claims (10, 11, 12, 13)
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14. A wireless power transmitter which wirelessly transmits a power to a wireless power receiver, the wireless power transmitter comprising:
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a transmission resonance coil for wirelessly transmitting a power; a power source for supplying the power to the transmission resonance coil; and a detector for detecting an existence state of the wireless power receiver, wherein the power source supplies the power with a transmission pattern which is discrete to detect the existence state of the wireless power receiver and minimize a loss of the power, wherein the detector detects the existence state of the wireless power receiver based on an intensity of a magnetic field generated from the transmission resonance coil, and wherein the power source continuously supplies the power if the wireless power receiver exists, and the power source supplies the power with the transmission pattern which is discrete at a predetermined period if the detector detects that the wireless power receiver does not exist in a state that the power source continuously supplies the power.
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15. A wireless power transmission method for wirelessly transmitting a power to a wireless power receiver, the method comprising:
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supplying the power with a transmission pattern which is discrete; generating a magnetic field using the supplied power; detecting a variation of an intensity of the magnetic field; and determining an existence state of the wireless power receiver based on the variation of the intensity of the magnetic field, wherein the power is generated with the transmission pattern which is continuous if the wireless power receiver is exist, and the transmission pattern of the power is discrete if the existence state of the wireless power receiver is changed while the transmission pattern of the power is continuous.
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Specification