Elliptically shaped magnetic core

摘要

The magnetic core comprises a stack of plates which extend mainly along a single axial direction. The stack cross-section has as envelope a curve comprised of two half circles with a radius a/2 and of two straight lines with a length (b-a) which connect together the end points of the half circles. The ratio b/a lies between 1.05 and 2 and preferably between 1.3 and 1.7.