Hey,
I have been looking at different 555 circuit on the web and have come across a few questions.
1) When using the timing formula, this only calculates the time the circuit is in high. Is this correct or does it depend on how the timer is connected?
2) Does a power on reset make the circuit jump into low when turned on?
3) If I were going to make a timer circuit that would delay the device from triggering, what all would I use? I was thinking that a relay and the LM555 would work but am not sure on how to make the circuit wait the first 15 sec. then give a diff. output(if so, how long would it have to be?), then to maye power it off somehow. Not really a project of mine, but thought itd be nice to know how to do it.
All help is greatly appreciated...thx again
-fire
I have been looking at different 555 circuit on the web and have come across a few questions.
1) When using the timing formula, this only calculates the time the circuit is in high. Is this correct or does it depend on how the timer is connected?
2) Does a power on reset make the circuit jump into low when turned on?
3) If I were going to make a timer circuit that would delay the device from triggering, what all would I use? I was thinking that a relay and the LM555 would work but am not sure on how to make the circuit wait the first 15 sec. then give a diff. output(if so, how long would it have to be?), then to maye power it off somehow. Not really a project of mine, but thought itd be nice to know how to do it.
All help is greatly appreciated...thx again
-fire