About the article

Pulse Selector

Based on a Labs project | October 2011 | Find it here
The circuit presented here can be useful in triggering, test and measurement applications. It converts a rising edge into a square pulse whose length is equal to the period of an input pulse train.In the quiescent state, flip-flop IC1B is clear, holding flipflop IC1A set.A TTL-level rising edge at the SELECT input causes a brief spike to appear at the output of gate IC2D. The spike is only a few nanoseconds long, and depends on the propagation delay through NAND gates IC2A, IC2B and IC2C, which are connected as inverters.
Downloading of this magazine article is reserved for registered users only.
Login | Register now!
Loading comments...