Fixed_off_time_motor_control

Published:2009/7/25 0:18:00 Author:Jessie | From:SeekIC

As shown by the waveforms in Fig. 3-31B, motor current modulates or dithers about a preset level, depending on the timer LM555 off-time (set by selection of R and C). The direction of motor rotation is set by the logic level at pin 3 of the LMD18200.



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