ENERGY RECEIVER, DETECTION METHOD, POWER TRANSMISSION SYSTEM, DETECTION DEVICE, AND ENERGY TRANSMITTER
First Claim
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1. A control device comprising:
- a power storage device to store power received wirelessly from a power transmitter by power receiving circuitry;
memory to store a quality factor threshold; and
a control section configured to receive power from the power storage device and to send the quality factor threshold to the power transmitter.
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Accused Products
Abstract
An energy receiver including a power receiver coil configured to wirelessly receive power transmitted from a power transmitter; a detection section configured to detect a foreign object; and a power storage section configured to supply power to the detection section during detection of the foreign object.
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Citations
5 Claims
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1. A control device comprising:
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a power storage device to store power received wirelessly from a power transmitter by power receiving circuitry; memory to store a quality factor threshold; and a control section configured to receive power from the power storage device and to send the quality factor threshold to the power transmitter. - View Dependent Claims (2, 3)
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4. A detection device comprising:
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power transmission circuitry including a power transmission coil configured to wirelessly transmit power to a power receiver; detection circuitry comprising Q factor detection circuitry; and test signal generation circuitry capable of generating test signal, wherein, the detection circuitry is configured to determine a quality factor value for the power transmission circuitry using the Q factor detection circuitry and the test signal and to compare the determined quality factor value with a threshold quality factor value to detect presence of a foreign object, and when the foreign object is detected, transmission of power by the power transmission circuitry is configured stopped. - View Dependent Claims (5)
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Specification