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Magnetic configuration for high efficiency power processing

  • US 9,196,417 B2
  • Filed: 05/05/2013
  • Issued: 11/24/2015
  • Est. Priority Date: 05/04/2012
  • Status: Active Grant
First Claim
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1. A circular magnetic structure comprising:

  • a magnetic core made of solid magnetic material comprising;

    a magnetic plate having an inner portion and an outer portion, said outer portion defining outer periphery of the magnetic core and said inner portion defining inner periphery of the magnetic core,an outer edge having a bottom surface disposed on the outer portion of the magnetic plate and a top surface elevated from the inner portion of the magnetic plate;

    a post made of said solid magnetic material having a bottom surface disposed within the inner portion of the magnetic plate at a distance from the outer edge and a top surface elevated from the inner portion of the magnet plate;

    wherein either the top surface of the post or the top surface of the outer edge or the top surface of the post and the top surface of the outer edge is larger than the bottom surface of the post or the bottom surface of outer edge respectively such that, when one or more conductive windings are disposed between the post and the outer edge, the distance between the post and the outer edge comprises a magnetic leakage line path that is in parallel with the one or more conductive windings.

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