| 摘要 |
PURPOSE:To reduce the transient vibration of a stepping motor by smoothing the abrupt change of a transient phenomenon by a digital-to-analog converter and an integrating amplifier. CONSTITUTION:A digital-to-analog converter 13 is connected with parallel output ports of a microprocessor 10, and further connected through an integrating amplifier 14 to a current amplifier 3. As a result, a coil current applied to a stepping motor 4 becomes as shown to become very smooth as compared with the varying characteristic of the coil current. Accordingly, the transient response of a stepping motor can be smoothed to reduce the transient vibration. |
