| 摘要 |
PROBLEM TO BE SOLVED: To provide a common-mode choke coil suitable for miniaturization capable of preventing common-mode noise over a wide band without upsizing it and without attenuating a high frequency normal mode signal. SOLUTION: A pair of windings 2, 3 are formed by simultaneously winding two insulated wires L1, L2 about a closed magnetic circuit core 1 forming a closed magnetic circuit, and the both ends of the two insulated wires L1, L2 forming the pair of windings 2, 3 are connected to input terminals 4i, 5i and output terminals 4o, 5o, respectively. The pair of windings 2, 3 are formed by winding the two insulated wires L1, L2 about both cores 1a, 1b divided by a straight line L intersecting the closed magnetic circuit 1 at two points x, y from one intersection point x toward the other one y respectively by extending them across the straight line L and over the cores 1a, 1b. COPYRIGHT: (C)2007,JPO&INPIT
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