Patent ID: 7164338

Claim:
An article of manufacture, comprising: a first winding wound around a core, the first winding having a first end and a second end; a second winding wound around the core, the first winding having a first end and a second end, wherein when there is a voltage transition on the first winding such that a voltage on the second end of the first winding becomes more positive than a voltage on the first end of the first winding, a voltage on the second end of the second winding increases relative to the first end of the second winding; and a third winding coupled to the first winding and wound around the core, the third winding having a first end and a second end, wherein the first end of the third winding is electrically coupled to the first end of the second winding, wherein the second end of the third winding is uncoupled such that an influence of an electrostatic field to be produced by the first and second windings relative to the core are to be cancelled by an electrostatic field to be created by the third winding.