Power feeding device and power feeding method
First Claim
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1. A power feeding system for feeding power to a plurality of power receivers, comprising:
- a first power feeding device comprising;
a first power feeder configured to wirelessly feed power to a first one of the plurality of power receivers,a first transceiver that communicates with the plurality of power receivers, anda first controller that controls the first power feeder; and
a second power feeding device comprising;
a second power feeder configured to wirelessly feed power to a second one of the plurality of power receivers,a second transceiver that communicates with the plurality of power receivers, anda second controller that controls the second power feeder;
wherein, when one of the first transceiver and the second transceiver receives communications from both the first one of the plurality of power receivers and the second one of the plurality of power receivers;
the first controller causes the first power feeder to suspend the feeding of power by the first power feeder for a first predetermined period, andthe second controller causes the second power feeder to suspend the feeding of power by the second power feeder for a second predetermined period that is longer than the first predetermined period;
wherein, upon expiration of the first predetermined period, the first controller determines which of the plurality of power receivers is the first one of the plurality of power receivers based upon a first timing of a communication received by the first transceiver and causes the first power feeder to resume feeding of power; and
wherein, upon expiration of the second predetermined period, the second controller determines which of the plurality of power receivers is the second one of the plurality of power receivers based upon a second timing of a communication received by the second transceiver and causes the second power feeder to resume feeding of power.
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Abstract
A power feeding device includes a power feeder that wirelessly feeds power to one of a plurality of power receivers, a transceiver that communicates with the plurality of power receivers, and a controller that causes, when the transceiver receives a plurality of signals from two or more of the plurality of power receivers, the power feeder to suspend the feeding of power to the one of the plurality of power receivers for a predetermined period.
6 Citations
15 Claims
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1. A power feeding system for feeding power to a plurality of power receivers, comprising:
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a first power feeding device comprising; a first power feeder configured to wirelessly feed power to a first one of the plurality of power receivers, a first transceiver that communicates with the plurality of power receivers, and a first controller that controls the first power feeder; and a second power feeding device comprising; a second power feeder configured to wirelessly feed power to a second one of the plurality of power receivers, a second transceiver that communicates with the plurality of power receivers, and a second controller that controls the second power feeder; wherein, when one of the first transceiver and the second transceiver receives communications from both the first one of the plurality of power receivers and the second one of the plurality of power receivers; the first controller causes the first power feeder to suspend the feeding of power by the first power feeder for a first predetermined period, and the second controller causes the second power feeder to suspend the feeding of power by the second power feeder for a second predetermined period that is longer than the first predetermined period; wherein, upon expiration of the first predetermined period, the first controller determines which of the plurality of power receivers is the first one of the plurality of power receivers based upon a first timing of a communication received by the first transceiver and causes the first power feeder to resume feeding of power; and wherein, upon expiration of the second predetermined period, the second controller determines which of the plurality of power receivers is the second one of the plurality of power receivers based upon a second timing of a communication received by the second transceiver and causes the second power feeder to resume feeding of power. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11)
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12. A power feeding method for feeding power to a plurality of power receivers performed by a power feeding system comprising a first power feeding device and a second power feeding device, the method comprising:
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wirelessly feeding power to a first one of the plurality of power receivers by the first power feeder; and wirelessly feeding power to a second one of the plurality of power receivers by the second power feeder, wherein, when one of the first power feeding device and the second power feeding device receives communications from both the first one of the plurality of power receivers and the second one of the plurality of power receivers; suspending the feeding of power by the first power feeder for a first predetermined period; suspending the feeding of power by the second power feeder for a second predetermined period that is longer than the first predetermined period; upon expiration of the first predetermined period, determining which of the plurality of power receivers is the first one of the plurality of power receivers based upon a first timing of a communication received by the first power feeding device and resuming feeding of power by the first power feeder; and upon expiration of the second predetermined period, determining which of the plurality of power receivers is the second one of the plurality of power receivers based upon a second timing of a communication received by the second power feeding device and resuming feeding of power by the second power feeder. - View Dependent Claims (13, 14, 15)
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Specification