DETECTING DEVICE, POWER SUPPLY SYSTEM, AND DETECTING DEVICE CONTROL METHOD
First Claim
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1. A detecting device comprising:
- a measurement coil made up ofa first partial coil to which current in a particular direction is induced by a magnetic field to be supplied to a power reception coil configured to receive power, anda second partial coil to which the current in the opposite direction of the particular direction is induced by the magnetic field;
a measurement unit configured to measure the voltage of the measurement coil as measurement coil voltage; and
a foreign object detecting unit configured to detect a foreign object within the magnetic field based on the measurement coil voltage.
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Abstract
A detecting device includes: a measurement coil made up of a first partial coil to which current in a particular direction is induced by a magnetic field to be supplied to a power reception coil configured to receive power, and a second partial coil to which the current in the opposite direction of the particular direction is induced by the magnetic field; a measurement unit configured to measure the voltage of the measurement coil as measurement coil voltage; and a foreign object detecting unit configured to detect a foreign object within the magnetic field based on the measurement coil voltage.
21 Citations
15 Claims
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1. A detecting device comprising:
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a measurement coil made up of a first partial coil to which current in a particular direction is induced by a magnetic field to be supplied to a power reception coil configured to receive power, and a second partial coil to which the current in the opposite direction of the particular direction is induced by the magnetic field; a measurement unit configured to measure the voltage of the measurement coil as measurement coil voltage; and a foreign object detecting unit configured to detect a foreign object within the magnetic field based on the measurement coil voltage. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12)
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13. A detecting device comprising:
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a measurement coil made up of a first partial coil to which current in a particular direction is induced by a magnetic field to be supplied by a power supply coil configured to supply power to a power reception coil configured to receive power, and a second partial coil to which the current in the opposite direction of the particular direction is induced by the magnetic field; a measurement unit configured to measure the voltage of the measurement coil as measurement coil voltage; and a foreign object detecting unit configured to detect a foreign object within the magnetic field based on the measurement coil voltage.
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14. A power supply system comprising:
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a power supply coil configured to supply power via a magnetic field; a power reception coil configured to receive the power; a measurement coil made up of a first partial coil to which current in a particular direction is induced by a magnetic field, and a second partial coil to which the current in the opposite direction of the particular direction is induced by the magnetic field; a measurement unit configured to measure the voltage of the measurement coil as measurement coil voltage; and a foreign object detecting unit configured to detect a foreign object within the magnetic field based on the measurement coil voltage.
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15. A detecting device control method comprising:
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measuring, at a measurement unit, voltage of a measurement coil made up of a first partial coil to which current in a particular direction is induced by a magnetic field to be supplied to a power reception coil configured to receive power, and a second partial coil to which the current in the opposite direction of the particular direction is induced by the magnetic field; and detecting, at a foreign object detecting unit, a foreign object within the magnetic field based on the measurement coil voltage.
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Specification