| 摘要 |
PURPOSE:To extremely reduce the variation of the power of a stepping motor by driving by a bipolar sinusoidal current and associating with a flywheel. CONSTITUTION:A flywheel 9 and a small-diameter belt prime wheel 10 are secured to a rotational shaft 8 of a stepping motor 1, a belt 13 is engaged with a large-diameter belt driven wheel 12 secured to the shaft 11 of a drum 7 to decelerate the drum 7, and a driver 14 supplies a bipolar sinusoidal current having constant effective current to a stepping motor. The flywheel may be constructed in a structure having its function by the rotor itself of the motor. |
