Patent ID: 9035737
Filing Date: 2015-05-19
Classification: H01F

Abstract:
1. A transformer system comprising: a primary coil comprising a first single-turn disposed on a first board layer of a circuit board and a second single-turn disposed on a third board layer of the circuit board; a core; a single-turn secondary coil formed on only a single second board layer of the circuit board and; a fourth board layer of the circuit board disposed between the first and the second board layers and having no transformer turns, wherein a first current flow through the primary coil creates a magnetic flux in the core, wherein the magnetic flux induces a second current flow in the single-turn secondary coil, wherein the circuit board comprises a fifth board layer, and a sixth board layer, wherein the fifth board layer is disposed between the fourth and the second board layers, the sixth board layer is disposed between the second and the third board layers, and wherein the fifth and sixth board layers have no transformer turns.