Patent ID: 6307458
Filing Date: 2001-10-23
Classification: H01F,H02M,H05K

Abstract:
A printed circuit board (PCB) assembly with an onboard inductor comprising:a plurality of PCB layers, each of said layers including a conductive core sub-layer predisposed between two base material sub-layers, each conductive core sub-layer formed into circuit pathways, said circuit pathways adapted to connect circuit components to said PCB assembly;a plurality of insulation layers predisposed between each PCB layer;an inductor core having a base with first, second and third legs extending therefrom;first, second and third openings extending through said plurality of PCB layers, said openings adapted to accept said inductor core; andsplit inductor windings integrated into said plurality of PCB layers and arranged about said inductor core in order to balance the magnetic flux in each of said first, second and third legs;wherein said split inductor windings adapted to provide an equal number of signal paths through a first area defined by said first and second openings and through a second area defined by said second and third openings.