CONTROLLER OF SERVO SYSTEM

摘要

PURPOSE:To increase the accuracy of control for a servo system, by feeding back the outputs selectively which are given from the 1st and 2nd potentiometers that have the synchronizing rotation with a prescribed difference of rotary phase and detect the output of the driving part. CONSTITUTION:The output of a driving part 1 is detected at one time in the form of voltage signals A and B through the 1st and 2nd potentiometers 7 and 8. When the potentiometer 7 is at a blind sector 7a, a changeover switch 9 is switched to the position shown by a dotted line by the function of a controller 10. At the same time, the target value R of the potentiometer 8 is delivered. The deviation epsilon between the value R and the signal B given from the potentiometer 8 is delivered from a comparing amplifier 2. The switch 9 is changed to the position shown by a solid line by the function of the controller 10 and before the potentiometer 8 enters a blind sector 8a, and at the same time the target value R of the potentiometer 7 is delivered. The deviation epsilon between the value R and the signal A given from the potentiometer 7 is delivered from the amplifier 2 before and after the switch is changed without receiving any effect.