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Method for making a segmented toroidal inductor

  • US 5,165,162 A
  • Filed: 09/16/1991
  • Issued: 11/24/1992
  • Est. Priority Date: 12/24/1990
  • Status: Expired due to Term
First Claim
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1. A method for making an inductor having a segmented toroidal core with a plurality of radial gaps and a winding wound thereon, comprising the steps of:

  • shaping each segment of said toroidal core;

    finish machining each said segment so that each has substantially the same size and shape;

    assembling said toroidal core in a toroidal mold;

    inserting dielectric shims between adjacent segments, each of said shims covering a portion of the adjacent surface area of each segment in the range from approximately 5%-30% thereof;

    filling the remaining space between adjacent segments with a bonding material, adjacent surfaces of adjacent segments of said core being substantially parallel;

    winding a conductor about said toroidal core.

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