DETECTION DEVICE, POWER RECEPTION DEVICE, POWER TRANSMISSION DEVICE AND NON-CONTACT POWER SUPPLY SYSTEM
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Accused Products
Abstract
A detection device, including: one or a plurality of magnetic coupling elements configured to have one or a plurality of coils; and a detection unit that measures or calculates an effective resistance values of the magnetic coupling elements or an effective resistance value of a circuit including at least the magnetic coupling elements and determines a presence or absence of a foreign substance based on a change in the effective resistance value.
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Citations
27 Claims
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1-14. -14. (canceled)
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15. A detection device comprising:
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circuitry including one or a plurality of magnetic coupling elements, wherein the circuitry is configured to; measure or calculate an effective resistance value of the one or the plurality of magnetic coupling elements, and determine a presence or absence of a foreign substance based on a change in the effective resistance value. - View Dependent Claims (16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26)
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27. A method of detecting presence or absence of a foreign substance in the vicinity of one or a plurality of magnetic coupling elements, the method comprising:
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in a detection device; measuring or calculating an effective resistance value of the one or the plurality of magnetic coupling elements; and determining the presence or absence of the foreign substance based on a change in the effective resistance value.
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Specification