Patent ID: 8384505

Claim:
A transformer comprising: a bar-shaped core defining first and second sections along an axial direction thereof without overlapping therebetween; a first pair of coils wound around the first section and each having a respective pair of opposite end regions, the pair of opposite end regions of one coil being located at one side of the first section and the pair of opposite end regions of the other coil being located at the other side of the first section in a transverse opposite manner; a second pair of coils wound around the second section and each having a respective pair of opposite end areas, the pair of opposite end areas of one coil being located at one side of the second section and the pair of opposite end areas of the other coil being located at the other side of the second section in a transverse opposite manner; a housing receiving the core and the coils, the housing comprising a pair of sidewalls and a lower wall connecting with the sidewalls; and a plurality of conductive terminals being secured in the housing, each terminal having a first pad portion exposed from a corresponding sidewall, a second pad portion extending outwardly from the lower wall, and a third portion buried in the corresponding sidewall; wherein the first and second pair of coils are physically and electrically connected to the first pad portions to form primary and secondary coils.