Wireless Power Transmitter and Control Method Thereof
First Claim
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1. A wireless power transmitter, comprising:
- a power transmission unit configured to transmit power for charging a wireless power receiver, by using a current applied to the power transmission unit;
a communication module configured to receive out-of-band communication signal from the wireless power receiver; and
a controller configured to control to apply the current to the power transmission unit to transmit power in response to receiving the out-of-band communication signal from the wireless power receiver.
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Abstract
A wireless power transmitter for charging a wireless power receiver is provided. The wireless power transmitter includes a power transmission unit configured to transmit power for charging the wireless power receiver, by using a current applied to the power transmission unit, a communication module configured to receive out-of-band communication signal from the wireless power receiver and a controller configured to apply the current to the power transmission unit to transmit power in response to receiving the out-of-band communication signal from the wireless power receiver.
28 Citations
34 Claims
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1. A wireless power transmitter, comprising:
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a power transmission unit configured to transmit power for charging a wireless power receiver, by using a current applied to the power transmission unit; a communication module configured to receive out-of-band communication signal from the wireless power receiver; and a controller configured to control to apply the current to the power transmission unit to transmit power in response to receiving the out-of-band communication signal from the wireless power receiver. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19)
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20. A wireless power transmitter for transmitting charging power to a wireless power receiver, the wireless power transmitter comprising:
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a coil; a communication module configured to communicate with the wireless power receiver using out-of-band communication; and a controller configured to; control to transmit the charging power to the wireless power receiver by applying a first current, output by a wireless charging unit, from a first point of the coil to a second point of the coil, control the communication module to transmit a first out-of-band communication signal to the wireless power receiver by applying a second current, output by the communication module, from the first point of the coil to a third point of the coil, and control to convey a second out-of-band communication signal from the wireless power receiver, received as a third current in a section of the coil from the first point of the coil to the third point of the coil, to the communication module.. - View Dependent Claims (21, 22)
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23. A wireless power transmitter for transmitting charging power to a wireless power receiver, the wireless power transmitter comprising:
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a coil; and a controller configured to; control to apply a first current from a first point of the coil to a second point of the coil to transmit the charging power to the wireless power receiver based on a first wireless charging standard scheme, and control to apply a second current from the first point of the coil to a third point of the coil to transmit the charging power to the wireless power receiver based on a second wireless charging standard scheme. - View Dependent Claims (24)
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25. A wireless power transmitter for transmitting charging power to a wireless power receiver, the wireless power transmitter comprising:
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a coil; a first communication module configured to communicate with the wireless power receiver based on a first communication scheme; a second communication module configured to communicate with the wireless power receiver based on a second communication scheme; and a controller configured to; control to apply a first current, output from the first communication module, from a first point of the coil to a second point of the coil to transmit out-of-band communication signal that is based on the first communication scheme to the wireless power receiver, and control to apply a second current, output from the second communication module, from the first point of the coil to a third point of the coil to transmit out-of-band communication signal that is based on the second communication scheme to the wireless power receiver. - View Dependent Claims (26, 27)
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28. A control method of a wireless power transmitter for charging a wireless power receiver, the control method comprising:
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receiving an out-of-band communication signal from the wireless power receiver; and transmitting power to the wireless power receiver by applying a power charging current to a power transmission unit in response to receiving the out-of-band communication signal. - View Dependent Claims (29, 30, 31, 32, 33, 34)
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Specification