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Power feeding device

  • US 9,973,040 B2
  • Filed: 03/20/2014
  • Issued: 05/15/2018
  • Est. Priority Date: 03/22/2013
  • Status: Active Grant
First Claim
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1. A power supply apparatus that supplies power to an external power receiving section in a wireless manner, the power supply apparatus comprising:

  • a power supply coil that supplies power to a power receiving coil of the power receiving section using an electromagnetic force; and

    a control section that controls an amount of power supply based on an amount of displacement of a position of the power supply coil with respect to the power receiving coil when vibration is added to the power supply apparatus when power is supplied from the power supply coil,wherein, when the amount of displacement is equal to or greater than a first threshold, the control section reduces the amount of power supply to a predetermined amount of power supply compared to a case where the amount of displacement is less than the first threshold, the predetermined amount being greater than zero, and the control section reduces the amount of power supply to “

    zero”

    when the amount of displacement is equal to or greater than a second threshold which is greater than the first threshold.

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