Patent ID: 7701320
Filing Date: 2010-04-20
Classification: H01F

Abstract:
1. A ferrite core comprising: an end face portion, a pair of outer legs protruding from both sides of the end face portion, and a center leg protruding from the end face portion between the outer legs, wherein an X-axis direction is defined as a direction when the position of each end of the outer legs and the center leg are in a line, a Y-axis direction is defined as a direction perpendicular to the X-axis, a Z-axis direction is defined as a direction perpendicular to the X-axis and the Y-axis, and an origin is a center of the Y-axis direction, the center leg has different widths in the X-axis direction which are measured at two positions apart from the origin at the same distance in two directions, respectively, and is asymmetric about the X-axis, a width of the center leg in the Y-axis direction is larger than a width in the X-axis direction, a distance between the outer legs at a wide side of the center leg in the X-axis direction is larger than a distance at the opposite side, and both ends of the center leg in the Y-axis direction and both ends of the end face portion in the Y-axis direction are aligned in the same face in the Z-axis direction, outer faces of the outer legs and corresponding outer faces of the end face portion are aligned in the same face in the Z-axis direction, and both ends of the outer legs in the Y-axis direction and both ends of corresponding outer faces of the end face portion are aligned in the same face in the Z-axis direction.