Patent ID: 6673181
Filing Date: 2004-01-06
Classification: H01P,Y10T

Abstract:
A method of forming a ferrite toroid, comprising the steps of:(a) forming a laminated center section of a ferrite tape having a predetermined elongation characteristic; (b) forming parallel elongated slots in the laminated center section; (c) locating the laminated center section on top of a laminated bottom section of ferrite tape; (d) laminating the center and bottom section in a second lamination step; (e) cutting off an end portion of the center section and exposing the ends of the slots in the center section; (f) placing a set of mandrels in the slots for reducing stress concentration in the ferrite tape; (g) placing a laminated top section of ferrite tape on top of the center section with the mandrels in place; (h) laminating the top, center and bottom section in a third lamination step to form a composite toroid structure; (i) removing the mandrels from the slots; (j) densifying the composite toroid structure; and (k) cutting the composite toroid structure to a selected size.