iAmGrizzly
New Member
Hey guy's, I may find the solution before someone answers here but I figured if it can save me sometime might as well double down.
Trying to figure out how to setup a monostable 555 circuit to add a 15 second delay upon receiving power, then power a second 555 with a shorter 1 second delay. I found a few different circuits just searching the web but whenever I try to simulate them in LTspice I'm not getting the type of readings I was expecting. Essentially the goal of what I am doing is to get the first half of the circuit to wait 15 seconds then power a second half that has a shorter delay (1 second) that will receive its voltage from a secondary source.
I know it would probably be better to use relays but I have loads of 555 chips on hand already so if I can figure something out just using these then that would be nice. Any help would be greatly appreciated.
Trying to figure out how to setup a monostable 555 circuit to add a 15 second delay upon receiving power, then power a second 555 with a shorter 1 second delay. I found a few different circuits just searching the web but whenever I try to simulate them in LTspice I'm not getting the type of readings I was expecting. Essentially the goal of what I am doing is to get the first half of the circuit to wait 15 seconds then power a second half that has a shorter delay (1 second) that will receive its voltage from a secondary source.
I know it would probably be better to use relays but I have loads of 555 chips on hand already so if I can figure something out just using these then that would be nice. Any help would be greatly appreciated.
