Patent ID: 8130067

Claim:
A transformer comprising: a non-conductive structure; a magnetic core structure including: a first magnetic structure that touches the non-conductive structure, the first magnetic structure having a hard axis that lies in a first direction, and a bottom surface that lies in a horizontal plane; a second magnetic structure that touches the non-conductive structure, the second magnetic structure having a hard axis that lies in a second direction different from the first direction, and a bottom surface; and a third magnetic structure that touches the non-conductive structure, the third magnetic structure having a hard axis that lies in the first direction, and a bottom surface that lies in the horizontal plane, the first, second, and third magnetic structures being spaced apart from each other; and a first coil that touches the non-conductive structure, the first coil being wrapped around the first magnetic structure so that magnetic field lines from the first coil extend along the hard axes of the first, second, and third magnetic structures.