Patent ID: 8970335
Filing Date: 2015-03-03
Classification: H01F

Abstract:
1. A coil form for forming an inductive element with a core, a first coil having a first pair of terminals and a second coil having a second pair of terminals, wherein the coil form is completely made of an electrically conducting material and comprises a metallic mantel portion formed around a mantel axis having a metallic base and two metallic flange portions at each end of the mantel portion, said two metallic flange portions being on a plane that is substantially perpendicular to the mantel axis such that the metallic mantel portion and the two metallic flange portions form a winding chamber around the metallic base of the metallic mantel portion, wherein the first coil comprises insulated wire wound on top of the metallic base within the winding chamber, the coil form forming a winding of said second coil by providing a current path between the second pair of terminals, wherein the first coil and the second coil comprise a transformer having magnetically coupled windings, and wherein the first pair of terminals electrically connect the first coil to a first electrical circuit and the second pair of terminals electrically connect the coil form to a second electric circuit.