Common mode filter
AssigneeTDK Corporation
InventorsToshio Tomonari, Tsutomu Kobayashi, Kazunori Arimitsu, Yuma Komaya
Life of this patent
Estimating the term…
Abstract
A device includes a core having a first end and a second end, and first and second wires wound around the core, each of the first and second wires having 1st to Nth turns counting from the first end to the second end, the 1st to Nth turns including an i−1th turn, an ith turn, a jth turn, and a j+1th turn, where j is greater than i. The ith turn of the first wire is closer to the first end than the ith turn of the second wire, the i−1th turn of the second wire is closer to the first end than the ith turn of the first wire, and the i−1th turn of the first wire is closer to the first end than the i−1th turn of the second wire.
Claims7
A device, comprising:
- a core having a first end and a second end;
- and
- first and second wires wound around the core so as to cross each other on the core to form a cross point, a winding structure of an ith turn of the first and second wires counting from the cross point toward the first end and a winding structure of an ith turn of the first and second wires counting from the cross point toward the second end are substantially symmetrical about the cross point such that the ith turn of the first wire counting from the cross point toward the first end is closer to the cross point than the ith turn of the second wire counting from the cross point toward the first end, that the ith turn of the first wire counting from the cross point toward the second end is closer to the cross point than the ith turn of the second wire counting from the cross point toward the second end, that the ith turn of the first wire counting from the cross point toward the first end is positioned on a same layer as the ith turn of the first wire counting from the cross point toward the second end, and that the ith turn of the second wire counting from the cross point toward the first end is positioned on a same layer as the ith turn of the second wire counting from the cross point toward the second end.
Dependencies are inferred from the claim text.