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LC noise filter

  • US 5,495,213 A
  • Filed: 07/18/1994
  • Issued: 02/27/1996
  • Est. Priority Date: 10/26/1989
  • Status: Expired due to Term
First Claim
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1. An LC noise filter comprising:

  • an insulation sheet having a plurality of portions folded alternately in opposite directions and stacked one above another;

    an inductive conductor provided on said insulation sheet at a first side to form a coil having a given number of turns when said folded portions are folded alternately in the opposite directions and stacked one above another, said inductive conductor having a predetermined width; and

    a capacitive conductor not directly, electrically connected to the inductive conductor and provided on said insulation sheet at a second side, said capacitive conductor having a mirror-image pattern as said inductive conductor to form a sandwich structure around said insulation sheet, said capacitive conductor having a predetermined width providing a capacitance between said inductive conductor and said capacitive conductor.

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