Extends the dynamic range and provides a digital processing using a galvanometer, scanners, and this improved servo system used in similar devices to increase the resolution. The system is controlled by a reference point that directly affect herein by digital to effect a direct effect on the gain of the circuit. The high- and low-resolution conversion path is provided in order to optimize the dynamic range. Thus improving the uniformity of the response to the deviation from zero at the wide angle by the wide-angle torque compensation. By improved thermal protection, which is guaranteed to be stable operation of the system in the vicinity of the thermal limits. By a graphical user interface, the adjustment and change of the response to the rotational speed for the tuning according to the input condition or the user control is permitted.
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