Patent ID: 7782169
Filing Date: 2010-08-24
Classification: H01F

Abstract:
1. A magnetic core made of metallic alloy having a linear or curved longitudinal axis, parallel to which a magnetic flux is to be guided essentially inside the magnetic core, the magnetic core being assembled from multiple rod-shaped or strip-shaped magnetic elements implemented parallel to one another, wherein at least one of the magnetic elements differs from the others in one or more of the following features: material permeability, curvature, length, shape and/or size of the cross-sectional area, presence, type, and position of notches in the magnetic elements, and wherein, viewed along a transverse direction extending through the thickness of the magnetic core and perpendicular to the longitudinal axis of the magnetic core, the magnetic elements have, with increasing distance from the center of thickness of the magnetic core outward towards a side of the magnetic core: a decreasing material permeability and/or a decreasing length and/or an increasing curvature away from the longitudinal axis and/or a thickness which becomes smaller and/or an increasing number and/or growing depth of notches.