Alignment independent and self aligning inductive power transfer system

  • US 6,803,744 B1
  • Filed: 10/31/2000
  • Issued: 10/12/2004
  • Est. Priority Date: 11/01/1999
  • Status: Active Grant
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First Claim
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1. An inductive power transfer device for an appliance, comprising(a) a housing;

  • (b) at least one primary inductor arranged in an array within said housing;

    (c) means for connecting said primary inductor with a power supply; and

    (d) at least one switch connected between said primary inductor, respectively, and said connecting means, said switch being operable to selectively activate a respective primary inductor, whereby when an appliance having a secondary inductor is placed on said housing, power is transferred to the appliance via a transformer defined by said primary inductor and the secondary inductor

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