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Two-phase coupled inductors which promote improved printed circuit board layout

  • US 8,174,348 B2
  • Filed: 05/24/2010
  • Issued: 05/08/2012
  • Est. Priority Date: 12/21/2009
  • Status: Active Grant
First Claim
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1. A two-phase coupled inductor, comprising:

  • a magnetic core including a first side and a second side opposite the first side, the magnetic core forming a passageway extending through the core from the first side to the second side, the passageway partially defined by a first leg of the magnetic core;

    a first winding wound at least partially around the first leg and through the passageway, a first end of the first winding extending from the first side of the core and forming a first solder tab, a second end of the first winding extending from the second side of the core and forming a second solder tab; and

    a second winding wound at least partially around the first leg and through the passageway, a first end of the second winding extending from the second side of the core and forming a third solder tab, a second end of the second winding extending from the first side of the core and forming a fourth solder tab;

    the first, second, third, and fourth solder tabs being separated from each other along a width of the magnetic core;

    wherein an electric current flowing through the first winding from the first solder tab to the second solder tab induces an electric current in the second winding flowing from the third solder tab to the fourth solder tab.

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