Wireless power transfer systems with shaped magnetic components

  • US 9,842,687 B2
  • Filed: 04/16/2015
  • Issued: 12/12/2017
  • Est. Priority Date: 04/17/2014
  • Status: Active Grant
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First Claim
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1. An apparatus for wireless power transfer, the apparatus comprising:

  • a coil formed of a conductive material and comprising a plurality of loops, wherein the plurality of loops defines an internal region of the coil that extends along a coil axis; and

    a magnetic component, wherein the magnetic component is disposed in the internal region and extends in a first direction parallel to the coil axis and in a second direction perpendicular to the coil axis,wherein a maximum dimension of the magnetic component measured in the second direction varies along the first direction;

    wherein a plurality of magnetic elements are joined to form the magnetic component and the plurality of magnetic elements are positioned in a row that extends in a direction parallel to the second direction; and

    wherein one or more edges of the magnetic component have a stepped profile.

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