The working principle of the servo motor controller

by:Hoprio     2020-07-21

also called dc motor controller, servo motor controller in the automatic control system, is used as actuators, converts the received electrical signal into angular displacement or velocity of motor shaft output. Divided into two major categories of dc and ac servo motor, its main characteristic is, when the signal voltage is zero no rotation, speed decreases with the increase of torque and uniform. Servo motor controller inside the rotor is a permanent magnets, drive control of U/V/W three-phase electric form of electromagnetic field, under the action of rotating rotor in this field, at the same time, the motor controller with encoder feedback signal to drive, drive according to the feedback value compared with the target, adjust the Angle of the rotor rotation. The precision of servo motor controller is determined by the precision of the encoder ( Line number) 。
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