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Wireless power transmission system

  • US 9,793,761 B2
  • Filed: 12/30/2014
  • Issued: 10/17/2017
  • Est. Priority Date: 01/31/2014
  • Status: Expired due to Fees
First Claim
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1. A wireless power transmission system comprising:

  • a power transmitting device including a power transmitting coil; and

    a power receiving device including a power receiving coil,wherein using magnetic field coupling between the power transmitting coil and the power receiving coil, electric power is wirelessly transmitted from the power transmitting device to the power receiving device,wherein the power transmitting device includes a power transmitting circuit configured to generate an electric signal used for transmitting electric power, a first power transmitting coil compatible with a first transmission method, a second power transmitting coil compatible with a second transmission method, a first magnetic substance on which the first power transmitting coil is placed, a second magnetic substance on which the second power transmitting coil is placed, and a power feeding surface on which the power receiving device is to be placed,and wherein the first magnetic substance includes a first attachment surface on which the first power transmitting coil is placed, the second magnetic substance includes a second attachment surface on which the second power transmitting coil is placed, and the first attachment surface and the second attachment surface are located on a lower side of the power feeding surface and arranged on a same plane surface parallel to the power feeding surface.

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