Generating a delayed pulse with one 555 timer upon powering up the circuit
I created the following circuit that seems to be able to accomplish that task with just one 555 and no external triggers.
Explanation of my circuit:
- The left-side attempts to simulate a delayed trigger pulse.
- R1-C1 is slowly decreasing the voltage from high to low and manipulates the length of time when output will be on LOW (~15 seconds)
- R3-C3 is increasing the voltage but slightly slower than R1-C1 so that Trigger voltage dips below 3V but not for long
- The right-side is a monostable 555 implementation
- R4-C4 manipulates the length of time when the output would be on HIGH (~5 seconds)
simulate this circuit – Schematic created using CircuitLab
Here are the voltage measurements:
Here are the current measurements:
I think this implementation works but is there an easier way to accomplish that?