| 摘要 |
PURPOSE:To lower a noise level by providing a transistor in parallel with an armature coil and discharging magnetic energy stored in the armature coil through control of power conduction timing of the transistor. CONSTITUTION:An output from a Hole element 10 is amplified through operational amplifiers 11a, 11b and provided through operational amplifiers 12a, 12b and AND gates 13a, 13b to transistors 15a, 15b. When the transistors 15a, 15b are conducted, armature coils J, K are conducted respectively. The armature coils J, K are provided in parallel with transistors 16a, 16b, and energy stored in the armature coils J, K is discharged through control of conduction timing of the transistors 16a, 16b. |
