PULSE_TRAINS_FORM_STAIRCASE

Published:2009/7/10 5:59:00 Author:May | From:SeekIC

Circuit accepts pulse trains from pulse-generating position transducer and produces staircase wave-form as analog input for horizontal axis of XY recorder or storage scope. Current-regulating diode serves as constant-current source for staircase generator that produces analog out-put proportional to number of input pulses. Mono switches on Q3 for constant time duration with every pulse, to ensure that C5 gets same amount of charge regardless of pulse rate. Relay resets integrator to zero when output voltage reaches almost 8.7 V, to prevent data from being lost if opamp saturates before data run is completed.-R. G. Warsinski, Staircase Generator Uses Current-Regulating Diode, EDN|EEE Magazine, Aug. 1, 1971, p 46.



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