Power transmitting device and power transfer system
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United States of America Patent
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Jun 30, 2015
Grant Date -
May 22, 2014
app pub date -
Nov 7, 2013
filing date -
Nov 21, 2012
priority date (Note) -
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status (Latency Note)
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Abstract
A power transmitting device that contactlessly transmits electric power to a power receiving device having a secondary coil provided at a vehicle, and a power transfer system, are provided. The power transmitting device includes primary coils, a selecting unit and a control unit. The primary coils are arranged at an interval in an arrangement direction. The selecting unit selects one primary coil to which electric power is supplied from a power supply. The control unit controls the selecting unit by supplying the selected primary coil with a second electric power smaller than a first electric power, selecting a power transmitting coil from among the primary coils on the basis of at least one of a power transmitting situation of the selected primary coil and a power receiving situation of the secondary coil, and supplying the power transmitting coil with the first electric power.
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