| 摘要 |
PROBLEM TO BE SOLVED: To provide a power supply filter capable of efficiently reducing high-frequency noises.SOLUTION: The power supply filter includes a first filter circuit and a second filter circuit which are connected in parallel to each other across the power source application terminals. The first filter circuit has a low pass characteristic including a first band in which the pass gain is higher than that of the second filter circuit. The second filter circuit includes a resistant element interposed in series and has a high pass characteristic including a second band in which the pass gain is higher than that of the first filter circuit at the higher band side. |
