Patent ID: 6583705
Filing Date: 2003-06-24
Classification: H01F

Abstract:
A high current inductor (10), comprising:upper and lower printed circuit boards (12 and 14), each of said circuit boards comprising: a generally planar substrate having an array of vias formed therethrough; an annular array of generally wedge-shaped conductive metal traces patterned on said substrate, said traces being separated by generally radially extending spaces, said traces having an array of vias formed therethrough corresponding to said vias of said substrate; and an external connector portion (16 and 18) disposed thereon for making external electrical connections; a toroidal magnetic core (30) situated between the upper and lower circuit boards; and an annular array of wires (22, 34) extending between the circuit boards and surrounding the toroidal magnetic core, wherein opposite ends of said wires are received in said vias in said upper and lower printed circuit boards.