| 摘要 |
<p>A microprocessor-controlled drive control system for a motor (1) is provided including a driver circuit (2) for the motor (1), a signal input unit (5) for receiving an input command signal representing a desired extent of angular displacement of the motor (1), a microcomputer (7) having an input/output interface (10) connected between the signal input unit (5) and the driver circuit (2) and a central processing unit (CPU) (8) for producing a control command signal in accordance with the input command signal and applying the control command signal to the driver circuit (2), thereby providing from the latter a drive signal for the motor in accordance with the control command signal, an encoder (4) for sensing an angular displacement of the motor (1) being achieved by the drive signal and producing a succession of pulses representing the angular displacement being sensed, logic-circuit means (6) connected between the encoder (4) and the interface (10) for applying to the central processing unit (8) a feedback signal at least in part derived from the encoder output pulses to modify the control command signal and consequentially the drive signal, and an interrupt unit (12) associated with the microcomputer (7) for intermittently providing an interrupt signal to the central processing unit (8), thereby permitting the latter to execute the modificaion of the control command signal.</p> |
