Patent ID: 8773231

Claim:
A multiphase inductor comprising: a first core; a second core; a third core; a fourth core; a center leg partially defined by a portion of the first core, a portion of the second core, a portion of the third core, and a portion of the fourth core; a first outer leg partially defined by a second portion of the first core; a second outer leg partially defined by a second portion of the second core; a third outer leg partially defined by a second portion of the third core; a fourth outer leg partially defined by a second portion of the fourth core; a main winding wound around a portion of the center leg, the main winding and center leg defining a longitudinal axis, and the cores extending radially from the longitudinal axis such that the first, second, third and fourth cores are disposed about the center leg at orthogonal angles with respect to one another; a first control winding wound around a portion of the first leg; a second control winding wound around a portion of the second leg; a third control winding wound around a portion of the third leg; and a fourth control winding wound around a portion of the fourth leg; an elliptically shaped first plate core arranged in contact with a top surface of the first outer leg and a top surface of the second outer leg, the elliptically shaped first plate core spaced apart from the third outer leg and fourth outer leg; an elliptically shaped second plate core arranged in contact with a top surface of the third outer leg and a top surface the fourth outer leg, the elliptically shaped second plate core spaced apart from the first outer leg and second outer leg; an elliptically shaped third plate core arranged in contact with a bottom surface of the first outer leg and a bottom surface of the second outer leg, the elliptically shaped third plate core spaced apart from the third outer leg and fourth outer leg; and an elliptically shaped fourth plate core arranged in contact with a bottom surface of the third outer leg and a bottom surface of the fourth outer leg, the elliptically shaped fourth plate core spaced apart from the first outer leg and second outer leg.