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Power transfer system and noncontact charging device

  • US 9,300,135 B2
  • Filed: 09/12/2013
  • Issued: 03/29/2016
  • Est. Priority Date: 06/25/2009
  • Status: Active Grant
First Claim
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1. A power transfer system comprising:

  • a power transmission device having a power transmission capacitive coupling electrode that includes a power transmission central conductor and a power transmission peripheral conductor that is arranged at a position surrounding the power transmission central conductor or at positions placing the power transmission central conductor in between in an insulated state from the power transmission central conductor;

    a power reception device having a power reception capacitive coupling electrode that includes a power reception central conductor and a power reception peripheral conductor that is arranged at a position surrounding the power reception central conductor or at positions placing the power reception central conductor in between in an insulated state from the power reception central conductor;

    an alternating voltage generating circuit that generates an alternating voltage that is applied between the power transmission central conductor and the power transmission peripheral conductor; and

    a load circuit of electric power induced between the power reception central conductor and the power reception peripheral conductor, whereinthe power transmission central conductor operates as a high-voltage side electrode while the power reception peripheral conductor operates as a low-voltage side electrode.

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