Missing pulse detector  

Category:
Sensor Circuits
Added on
Mar 17, 2013
The timing cycle is continuously reset by the input pulse train. A change in frequency, or a missing pulse, allows completion of the timing cycle which causes a change in the output level. For this application, the time delay should be set to be slightly longer than the normal time between pulses
Missing pulse detector - schematic

The graph shows the actual waveforms seen in this mode of operation.




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