Delayed Pulse Generator Circuit

  
Three 555 IC timers are used in this circuit to construct a simple delayed-pulse generator. IC1 acts as a waveform shaper to produce a rectangular waveform. IC2 produces a delaying pulse to trigger 103 on the trailing edge of the delaying pulse. Rl controls delay time and R2 controls pulse width.
Delayed Pulse Generator Circuit - schematic

As much as a 10:1 range can be generated.




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