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    • 3. 发明授权
    • Choke coil
    • 扼流线圈
    • US5841335A
    • 1998-11-24
    • US553506
    • 1995-11-30
    • Kazuaki OnishiHidenori UematsuTsunetsugu ImanishiMunekazu Sato
    • Kazuaki OnishiHidenori UematsuTsunetsugu ImanishiMunekazu Sato
    • H01F27/24H01F3/10H01F37/00H01F27/28
    • H01F3/10H01F37/00
    • A choke coil for preventing harmonic distortions, used with home-use and industrial electronic apparatuses, is designed to reduce the apparatus size, reduce leakage fluxes and realize superior high-frequency characteristics. In order to achieve this object, there is provided a choke coil comprising a first magnetic core and a second magnetic core making up a closed magnetic circuit or an open magnetic circuit, a first coil, a second coil and a third coil, wherein the first coil is wound on the first magnetic core, the second coil is wound on the second magnetic core, and further the third coil is wound in such a manner as to cover the first magnetic core and the second magnetic core, and an inductance value required for preventing harmonic distortions is secured by the magnetic circuit configuration. At the same time, the function of a common-mode choke coil is provided to increase a coupling coefficient and reduce the system size and leakage fluxes.
    • PCT No.PCT / JP95 / 00790 Sec。 371日期:1995年11月30日 102(e)日期1995年11月30日PCT 1995年4月21日PCT PCT。 公开号WO95 / 29493 日期:1995年11月2日用于防止谐波失真的扼流圈用于家用和工业电子设备,旨在减小设备尺寸,减少漏电流并实现优异的高频特性。 为了实现该目的,提供了一种扼流线圈,其包括构成闭合磁路或开放磁路的第一磁芯和第二磁芯,第一线圈,第二线圈和第三线圈,其中第一 线圈被卷绕在第一磁芯上,第二线圈缠绕在第二磁芯上,并且第三线圈以覆盖第一磁芯和第二磁芯的方式缠绕,并且为了 通过磁路配置来防止谐波失真。 同时,提供共模扼流线圈的功能来增加耦合系数并降低系统尺寸和漏电流。