| 摘要 |
PROBLEM TO BE SOLVED: To provide an array type noise reducing filter capable of minimizing electromagnetic interference which is substantially generated. SOLUTION: In the array type noise reducing filter consisting of a plurality of noise reducing filters, inductance section of the plurality of noise reducing filters 20a, 20b are formed of a first and second coil sections 27'a, 27'b, 27"a and 27"b, and one of the coil section out of the first and second coil sections 27'a, 27'b, 27"a and 27"b, are so formed that the winding directions may be opposite to each other. The filter can minimize the electromagentic interference phenomenon between the filters by cancelling mutual interference due to mutual inductance induced between the coils of different inductance sections. Further, the filter has an advantage in which desired filter characteristics can be designed by determining an exact inductance value by forming a conductive layer between the coils to shield mutual interference between the first and second coils.
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