| 摘要 |
PURPOSE:To perfectly cut off external noise and to suppress voltage drop due to an activity current, by using a superconductive wire as a conductor to be wound across the outside of a magnetic core. CONSTITUTION:A noise filter is constituted by providing with the magnetic core 1 and winding the superconductive wire 2 across the outside of the magnetic core 1. Since the superconductive wire 2 has no electrical resistance, by connecting such noise filter to a DC power source line of an electronic circuit 10 consisting of an IC, etc., it is possible to prevent the voltage drop of the activity current from being generated, and also, to cut off the invasion of the the external noise perfectly. Therefore, it is possible to obtain an optimum noise filter as the noise filter for the electronic circuit which performs fast operation.
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