| 摘要 |
PURPOSE:To reduce the wear of a resistor by setting a resistance between the segments formed of conductors for a resistance between taps of a coil to the prescribed value. CONSTITUTION:Three segments 1 made of conductive ceramic are mounted on a resistor 2 made of a semiconductor ceramic formed as a base. The ratio of the resistance value between coil taps connected to terminals 3 to that between the segments 1 is set to 20 to 2,000. As the resistance 2 disposed between the segments 1 a substance having low melting or softening point such as 1,300 deg.C is used. Thus, the wear of the resistor can be reduced, and an electric noise can be suppressed. |
