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Wireless power charging device and method for mobile equipment

  • US 9,350,195 B2
  • Filed: 03/26/2014
  • Issued: 05/24/2016
  • Est. Priority Date: 10/11/2011
  • Status: Active Grant
First Claim
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1. A wireless power charging device comprising:

  • a signal oscillating unit receiving power from a power supply unit and oscillating a signal;

    a power signal generating unit generating a power signal by resonating with the signal oscillated by the signal oscillating unit;

    a charging unit storing the generated power signal and supplying power to a mobile equipment on the basis of the stored power signal; and

    at least one relay unit disposed between the signal oscillating unit and the power signal generating unit and relaying the signal oscillated by the signal oscillating unit to the power signal generating unit,wherein the signal oscillating unit comprises a circular first antenna coil set to a first diameter having a predetermined length, and a first capacitor connected to the circular first antenna coil in series, wherein the at least one relay unit comprises a circular second antenna coil set to a second diameter having a predetermined length, and wherein the power signal generating unit comprises a circular third antenna coil set to a third diameter having a predetermined length, and a second capacitor connected to the circular third antenna coil in parallel, andwherein the first diameter, the second diameter and the third diameter are gradually reduced in the described order.

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