ALPHANUMERIC CALENDAR CLOCK

Stopwatch LED Display for Sports Applications

 

 20-5-2015



www.ti.com/lit/an/scea046/scea046.pdf

https://www.fairchildsemi.com/application-notes/AN/AN-140.pdf

www.circuitstoday.com/schmitt-trigger-using-op-amp

A Schmitt trigger circuit is also called a regenerative comparator circuit.

https://www.onsemi.com/pub/Collateral/MC74HC14A-D.PDF

Due to hysteresis voltage of the Schmitt trigger, the HC14A finds applications in noisy environments.

www.falstad.com/circuit/e-schmitt.html

This circuit is a Schmitt Trigger, a type of comparator. It measures the input to see if it is above or below a certain threshold.

 




 

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STOPWATCHES