FOUR MODE FREQUENCY COUNTER


Posted on Feb 5, 2014

This counter can measure frequencies from 2 Hz to 1 MHz, time interval, and period, and count random events. A 74C926 and 74C925 are used as the counter, and these will drive a multiplexed LED display. A 2-MHz time base is used, and a divider chain is used to derive a 1-s gate. An LM339 op amp serves as the input buffer, and CD4000 series logic is


FOUR MODE FREQUENCY COUNTER
Click here to download the full size of the above Circuit.

used for gating and switching functions.




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