Wireless power transmitter for excluding cross-connected wireless power receiver and method for controlling the same
First Claim
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1. A method for controlling a wireless power transmitter, the method comprising:
- applying a detection power for detecting a change in a load of the wireless power transmitter;
detecting the change in the load of the wireless power transmitter;
receiving a first signal comprising load detection indication bits from an electronic device within a preset time after detecting the change in the load;
determining whether the electronic device is capable of generating the change in the load of the wireless power transmitter based on the load detection indication bits;
in response to determining that the electronic device is capable of generating the change in the load based on the load detection indication bits, transmitting a second signal corresponding to the first signal; and
in response to determining that the electronic device is not capable of generating the change in the load based on the load detection indication bits, stopping a communication with the electronic device.
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Abstract
A method and apparatus for controlling a wireless power transmitter configured to transmit power to a wireless power receiver is provided. The method includes receiving a first signal from the wireless power receiver, wherein the first signal comprises load detection indication bits, detecting a change in load of the wireless power transmitter caused by placement of the wireless power receiver in a charging area of the wireless power transmitter, based on the load detection indication bits, and determining whether to transmit a second signal to the wireless power receiver based on detecting the change in load of the wireless power transmitter.
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Citations
11 Claims
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1. A method for controlling a wireless power transmitter, the method comprising:
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applying a detection power for detecting a change in a load of the wireless power transmitter; detecting the change in the load of the wireless power transmitter; receiving a first signal comprising load detection indication bits from an electronic device within a preset time after detecting the change in the load; determining whether the electronic device is capable of generating the change in the load of the wireless power transmitter based on the load detection indication bits; in response to determining that the electronic device is capable of generating the change in the load based on the load detection indication bits, transmitting a second signal corresponding to the first signal; and in response to determining that the electronic device is not capable of generating the change in the load based on the load detection indication bits, stopping a communication with the electronic device. - View Dependent Claims (2, 3, 4, 10)
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5. A wireless power transmitter, comprising:
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a resonator; a wireless communication unit; and a controller configured to; control the wireless power transmitter to apply a detection power for detecting a change in a load of the wireless power transmitter to the resonator, detect the change in the load of the wireless power transmitter, receive, through the wireless communication unit, a first signal comprising load detection indication bits from an electronic device within a preset time after detecting the change in the load, determine whether the electronic device is capable of generating the change in the load of the wireless power transmitter based on the load detection indication bits; in response to determining that the electronic device is capable of generating the change in the load based on the load detection indication bits, transmit, through the wireless communication unit, a second signal corresponding to the first signal; and in response to determining that the electronic device is not capable of generating the change in the load based on the load detection indication bits, stop a communication with the electronic device. - View Dependent Claims (6, 7, 8, 11)
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9. A wireless power transmitter, comprising:
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a resonator; a wireless communication unit; and a controller configured to; apply a detection power for detecting a change in a load of the wireless power transmitter to the resonator, detect the change in the load of the wireless power transmitter, receive, through the wireless communication unit, a first signal comprising load detection indication bits from an electronic device within a preset time after detecting the change in the load, determine that the electronic device is not capable of generating the change in the load of the wireless power transmitter based on the load detection indication bits, and in response to determining that the electronic device is not capable of generating the change in the load of the wireless power transmitter based on the load detection indication bits, determine that the electronic device is not a wireless power receiver to be connected.
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Specification