Inductively powered apparatus

  • US 20030214255A1
  • Filed: 02/04/2003
  • Published: 11/20/2003
  • Est. Priority Date: 06/21/1999
  • Status: Active Grant
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First Claim
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1. An inductively powered device comprising:

  • a power supply circuit having a primary, said power supply circuit applying power to said primary to generate a magnetic field;

    a secondary assembly having a secondary circuit with a secondary and a load, said secondary being disposed within said magnetic field, said magnetic field inducing a current in said secondary to apply power to said load at a magnitude; and

    a means for varying a respective position between said primary and said secondary to control said magnitude of said power applied to said load.

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