Patent ID: 7667563

Claim:
Transformer ( 1 ) comprising a miniaturized electronic subassembly ( 2 ) with: a primary magnetic core ( 4 ) of a soft magnetic material having a center hole ( 5 ) through which a primary winding ( 6 ) of insulated wire ( 7 ) is run, in such a way as to form a primary inductive component ( 3 ); a secondary magnetic core ( 4 ′) of a soft magnetic material having a center hole ( 5 ) through which a secondary winding ( 6 ′) of insulated wire ( 7 ) is run, in such a way as to form a secondary inductive component ( 3 ′); a substrate ( 10 ) with a web ( 12 , 12 ′), wherein an internal printed conductor ( 11 ) is printed on the web, wherein the internal printed conductor ( 11 ) couples the primary and the secondary inductive components ( 3 , 3 ′), wherein the primary and second inductive components ( 3 , 3 ′) are pushed onto the web ( 12 , 12 ′), and wherein the web ( 12 , 12 ′) is the carrier of the primary and secondary inductive components ( 3 , 3 ′); and one or more connection arms ( 13 , 13 ′) consisting of a contact surface ( 14 , 14 ′) for connecting the primary and secondary inductive components ( 3 , 3 ′) to the miniaturized electronic subassembly arranged on a circuit board ( 20 ), and with a contact wiring region ( 15 , 15 ′) for fixation of beginning turn ( 16 ) and final turn ( 17 ) of the winding ( 6 ).