MOTOR_STEP_ANGLE_DISPLAY

Published:2009/7/7 4:12:00 Author:May | From:SeekIC

DigitaI display circuit tracks stepper-motor shaft movements. Up/down decade counters read out four BCD digits as travel angle (000.0 to 360.0) in degrees and number of completed revolutions (0 to 9). Stepper under study is driven by state generator that produces high-current square-wave pulses under control of clock used for display, which can be external square-wave generator or clock output of microprocessor such as KIM-1:. Power source for digital display is 5 V at 1.2 A. Applications include monitoring movements of incremental plotters, precision film camera drives, numerical control machines, and precision start-stop motions of fuel control rods in nuclear reactor.-H. Lo, Digital Display of Stepper Motor Rotation, Computer Design, April1978, p 147-148 and 150-151.



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