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Document Type and Number:
Japanese Patent JPS6027213
Kind Code:

PURPOSE: To simplify the constitution of the titled noise filter and to mass- produce the noise filter by forming a magnetic conductive coat on the external surface of an insulation coat of a conductive wire such as a copper wire and forming distribution inductance and distribution capacity on the conductive wire.

CONSTITUTION: A filament body 10 obtained by forming an insulating coat 7 to be a dielectric substance on the surface of a good conductor such as a copper wire or an aluminium wire and then forming a magnetic conductive coat 8 such as iron on the external surface of the insulating coat 7 is wound like a coil. The good conductor 6 forming the filament body 10 is provided with the magnetic conductive coat 8 over the whole length. Therefore, its inductance is increased like a distributional constant. In addition, a capacitor is formed like a distributional constant through the insulating coat 7, so that noises superposed to a power supply circuit can be suppressed by connecting the good conductor 6 to the power supply circuit or a smoothing circuit.

Ikeda, Takeshi
Application Number:
Publication Date:
February 12, 1985
Filing Date:
July 25, 1983
Export Citation:
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International Classes:
H03H7/075; H01F27/00; H03H1/00; (IPC1-7): H03H7/01
Domestic Patent References: