Greetings,
I am looking for how to wire a 555 timer off of 5 volts in such a way that when I turn a potentiometer dial, the speed of the output pulse (high or low) goes up.
To better explain, when starting at midpoint on a 10K pot, at 5Kohms, the output triggers at say, once every 3 seconds. As I increase (or decrease, I can do either whichever makes the design easier) the resistance, the output starts triggering more rapidly: at 6K, the output increases to once every 2 seconds; at 7.5K, once per second, and at 10K full scale, 3 times per second. Preferably a linear rate if possible, if given a linear pot to operate with.
Those resistances and rates are just examples of how the circuits needs to operate. The output of the circuit will be fed into a different circuit and used as a replacement for that circuit's detection switch. I would like the width of the pulse to remain constant if possible, I am just trying to increase the frequency of the pulse.
Can this low-frequency circuit (zero Hz to 10Hz) be done with a 555?
Thanks for any help, and please let me know if you need more info.
ElectroDFW