| 摘要 |
The invention provides a power supply filter for noise suppression in which the windings of a plurality of lines for supplying a power supply voltage and current of a predetermined frequency are so wound around same magnetic core that the sum of the magnetic fluxes produced by the windings may become zero, thereby providing an inductance element. This inductance is almost negligible to a power supply frequency component while it is high to a high frequency noise component, so that the power supply frequency component is not attenuated while the high frequency component superposed upon the power supply frequency component is attenuated to a greater extent. A power supply filter for noise suppression which is compact in size and having a large current may be provided.
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