Patent ID: 6952153
Filing Date: 2005-10-04
Classification: H01F

Abstract:
1. An electrical transformer, comprising: a first multilayer printed circuit board having a plurality of first electrically isolated electrical conductor segments disposed on each one of a plurality of electrically isolated levels of such first multilevel printed circuit board; a second multilayer printed circuit board, disposed over, and in registration with, the first multilevel printed circuit board, such second multilevel printed circuit board having a plurality of second electrically isolated electrical conductor segments disposed on each one of a plurality of electrically isolated levels of such second multilevel printed circuit board; a core having an aperture therein, such aperture extending between the first and second multilevel printed circuits boards; a dielectric body disposed in the aperture, such body having disposed therein a plurality of third electrically isolated electrical conductor segments; and wherein first ends of the third electrically isolated electrical conductor segments are electrically connected to the plurality of first electrically isolated electrical conductor segments and second ends of the third electrically isolated electrical conductor segments are electrically connected to the plurality of second electrically isolated electrical conductor segments to provide a portion of a primary winding and a portion of a secondary winding for the transformer; wherein such primary winding comprises first ones of the first electrically isolated electrical conductor segments, first ones of the second electrically isolated electrical conductor segments, and first ones of the third electrically isolated electrical conductor segments; and wherein such secondary winding comprises second ones of the first electrically isolated electrical conductor segments, second ones of the second electrically isolated electrical conductor segments, and second ones of the third electrically isolated electrical conductor segments.