Patent ID: 7342475

Claim:
A coil arrangement having a primary and a secondary C-shaped core ( 10 , 10 ′), each C-shaped core ( 10 , 10 ′) having an elongated base ( 12 ) and two shorter legs ( 14 , 16 , 14 ′, 16 ′) at the ends of the base, a winding ( 22 ) being applied to each base ( 12 ) and the ends of the windings ( 22 ) being electrically connected at the legs ( 14 , 16 , 14 ′, 16 ′) of the cores and the cores ( 10 , 10 ′) being arranged with respect to each other such that the legs ( 14 , 16 , 14 ′, 16 ′) of the two cores ( 10 , 10 ′) are located opposite each others, wherein contact areas are provided on at least one surface of each leg of the C-shaped core, said surface being located on a face of the leg different than the end face, and wherein a winding is provided on each base, the winding ends being in electric contact with the contact areas.