TRIGGERED_SWEEP_FOR_CRO

Published:2009/7/10 22:40:00 Author:May | From:SeekIC

Combination of 555 timer and standard opamp minimizes cost of adding triggered sweep to oscilloscope not having this feature. Timer is triggered by applying vertical-amplifier signal through opamp, initiating charging of sweep capacitor C. When capacitor voltage reaches control voltage of timer (0.33 VCC), flip-flop in timer resets and capacitor discharges to form retrace of sweep.- Signetics Analog Data Manual, Signetics, Sunnyvale, CA, 1977, p 726.



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