| 摘要 |
A noise suppressor capable of obtaining a favorable attenuation characteristic even in the case where a plurality of inductors on a conductive wire are magnetically coupled to each other. The noise suppressor includes a first inductor and a second inductor which are magnetically coupled to each other on a first conductive wire, a third inductor having one end connected to the other end of a first capacitor and the other end of a second capacitor and the other end connected to ground, and a fourth inductor and a fifth inductor which are magnetically coupled to each other on a second conductive wire. While it is considered that the coupling coefficients k 1 through k 6 between the inductors are smaller than 1 in reality, in particular, on the basis of the condition that the coupling coefficients K 1 through k 6 are smaller than 1, the inductance of the third inductor is set to a value corresponding to the actual values of the coupling coefficients k 1 through k 6 so as to obtain a desired noise attenuation characteristic.
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