ZERO_DETECTOR_WITH_HYSTERESIS

Published:2009/7/14 21:38:00 Author:May | From:SeekIC

ZERO DETECTOR WITH HYSTERESIS-Circuit using one section of Harris HA-4900/4905 precision quad comparator as Schmitt trigger has 100-mV hysteresis. Suitable for applications requiring fast transition times at output even though input signal approaches zero crossing slowly. Hysteresis loop also reduces false triggering by input noise. Output jumps to 4.2 V at instant when input reaches -100 mV after dropping to 0 V. Output drops from 4.2V to 0 V when input passes through 0 V in positive direction and reaches +100 mV.- Linear & Data Acquisition Products, Harris Semiconductor, Melbourne, FL, Vol. 1, 1977, p 2-96.



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