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Power-receiving device, wireless power-feeding system including power-receiving device, and wireless communication system including power-receiving device

  • US 9,887,583 B2
  • Filed: 03/05/2012
  • Issued: 02/06/2018
  • Est. Priority Date: 03/10/2011
  • Status: Expired due to Fees
First Claim
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1. A power-receiving device comprising:

  • a power-receiving resonance coil on a first surface of a substrate, the power-receiving resonance coil being configured to generate a first high-frequency voltage by a resonance method;

    a power-receiving coil on a second surface of the substrate, the power-receiving coil being configured to generate a second high-frequency voltage by using electromagnetic induction between the power-receiving coil and the power-receiving resonance coil;

    a wireless power-feeding unit electrically connected to the power-receiving coil; and

    a wireless communication unit electrically connected to the power-receiving coil, the wireless communication unit comprising;

    a reception circuit configured to receive a signal that has been received by at least one of the power-receiving resonance coil and the power-receiving coil; and

    a reception controller configured to control the signal received by the reception circuit,wherein the wireless power-feeding unit and the wireless communication unit are provided over the substrate and integrated,wherein the power-receiving resonance coil and the power-receiving coil are overlapped with each other with the substrate positioned therebetween, andwherein the substrate is a flexible substrate.

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