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Planar transformer

  • US 9,401,243 B2
  • Filed: 12/18/2014
  • Issued: 07/26/2016
  • Est. Priority Date: 06/21/2010
  • Status: Active Grant
First Claim
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1. A planar transformer, comprising:

  • a core provided to induce formation of a magnetic field;

    a bobbin coupled to the core;

    at least one primary winding interposed between the core and the bobbin; and

    at least one secondary winding interposed between the core and the bobbin, and insulated from the at least one primary winding;

    wherein the core includes a first fastening lug and a second fastening lug distanced from the first fastening lug, andwherein a shape of the first fastening lug is different from a shape of the second fastening lug,wherein the first fastening lug is formed with a geometric shape different from that of the second fastening lug,wherein the bobbin includes a first fastening hole to be coupled to the first fastening lug and a second fastening hole to be coupled to the second fastening lug,wherein the first fastening hole has a geometric shape corresponding to the geometric shape of the first fastening lug, andwherein the second fastening hole has a geometric shape corresponding to the geometric shape of the second fastening lug.

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