| 摘要 |
PURPOSE:To obtain an accurate optimum drive pulse for a motor by setting the desired control characteristics by a digital value. CONSTITUTION:An input circuit 20 sets an initial pulse period (alpha), an input circuit 21 sets the amount (beta) of variation to the period (alpha), and a setter 24 sets the total pulse number M for driving the motor. The pulse period is reduced until becoming the pulse number A after the completion of the through-up operation set by a pulse setter 22, and when exceeding the pulse number C started from the through-down operation set by a pulse setter 23, a pulse generator 25 is controlled so as to sequentially apply a pulse in a direction for gradually increasing the period. |
