Contact-less power transfer

  • US 7,042,196 B2
  • Filed: 12/01/2004
  • Issued: 05/09/2006
  • Est. Priority Date: 05/13/2002
  • Status: Active Grant
First Claim
Patent Images

1. A portable electrical or electronic device adapted to receive power inductively from a primary unit, the device comprising:

  • a cover element having a substantially planar portion with inner and outer surfaces, the device being adapted to be placed with said outer surface on or in proximity to such a primary unit when receiving power therefrom; and

    a power-receiving element in the form of a thin sheet, comprising a coil arranged in close proximity to said inner surface of said cover element and having a central axis extending generally parallel to a plane of said planar portion, for receiving power inductively from the primary unit when the device is so placed on or in proximity to the primary unit.

View all claims

    Thank you for your feedback