提供宽频率范围内的衰减的带阻滤波器

Band elimination filter providing attenuation within wide range of frequencies

Abstract

在带阻滤波器中,多个电容器并联连接在电磁噪声源的第一和第二端子之间,该电磁噪声源生成连接到第一端子的连接引线中的电压波动,电容器在各自相应的分支点处连接到连接引线。对于每个电容器,使第一电路路径的总串联电感小于第二电路路径的总串联电感,其中第一电路路径从相应的分支点经由电容器延伸到第二端子,并且第二电路路径从该分支点延伸到电磁噪声源的第一端子。电阻器与至少一个电容器串联连接,用于阻尼由相邻电容器对的电感分量引起的并联谐振。
In a band elimination filter, a plurality of capacitors are connected in parallel between first and second terminals of an electromagnetic noise source which generates voltage fluctuations in a connecting lead connected to the first terminal, with the capacitors being connected to the connecting lead at respectively corresponding branch points. For each capacitor, the total series inductance of a first circuit path is made less than that of a second circuit path, where the first circuit path extends from the corresponding branch point to the second terminal via the capacitor, and the second circuit path extended from that branch point to the first terminal of the electromagnetic noise source. A resistor is connected in series with at least one of the capacitors, for damping parallel resonance caused by inductance components of an adjacent pair of capacitors.

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Cited By (2)

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    CN-102810945-ADecember 05, 2012株式会社电装Starter with noise reduction device
    CN-102810945-BMarch 16, 2016株式会社电装具有降噪装置的启动器