Patent ID: 9161481
Filing Date: 2015-10-13
Classification: H01F,H02J

Abstract:
1. A shielding arrangement for attenuating electromagnetic energy generated by a primary coil of a charging device, the shielding arrangement comprising: a printed circuit board having first and second sides; a first plurality of substantially parallel conductors disposed on the first side of the printed circuit board and arranged at a first predetermined uniform lateral distance from one another; a second plurality of substantially parallel conductors disposed on the second side of the printed circuit board and arranged at a second predetermined uniform lateral distance from one another, wherein the first and second plurality of substantially parallel conductors are separated from each other only by the printed circuit board; the first and second predetermined lateral distances selected so that electromagnetic energy of a predetermined frequency generated by the primary coil is attenuated when propagating through the shielding arrangement; a first interconnection arrangement for electrically connecting said first plurality of substantially parallel conductors to one another; a second interconnection arrangement for electrically connecting said second plurality of substantially parallel conductors to one another; and the first and second interconnection arrangements formed on opposite sides of the printed circuit board.