Hello all!
I'm looking for a one-shot with adjustable delay.
Something like this:
http://www.discovercircuits.com/DJ-Circuits/4013oneshots.htm
(top one)
It will be used in a 12v motor vehicle, so it should be able to work with a varying source voltage from the electrical system.
The delay should be between 10ms to 100ms, adjustable.
I dont need to be able to specify the exact value in ms, but perhaps a potentiometer of the correct value would allow for the adjustment range above.
On this example circuit, can anyone suggest the proper values to obtain the delay adjustment range ?
Also, do you think once adjusted, the delay will be fairly stable ?
(meaning, will it be at the same set value throughout the life of the circuit)
Or will I get random changing delays, but close to the original set point ?
If it would not be that precise, how can its precision be improved ?
Or perhaps it would be better to use a different circuit/approach altogether ?
And, on that circuit, what would happen if the triggering switch is left on after the delay has passed ? Would it trigger again ? Or will it not trigger until the switch is released then pressed again ?
Thanks for all the help!
Sorry if I didn't explain this right...let me know if you need more info to help.
I'm looking for a one-shot with adjustable delay.
Something like this:
http://www.discovercircuits.com/DJ-Circuits/4013oneshots.htm
(top one)
It will be used in a 12v motor vehicle, so it should be able to work with a varying source voltage from the electrical system.
The delay should be between 10ms to 100ms, adjustable.
I dont need to be able to specify the exact value in ms, but perhaps a potentiometer of the correct value would allow for the adjustment range above.
On this example circuit, can anyone suggest the proper values to obtain the delay adjustment range ?
Also, do you think once adjusted, the delay will be fairly stable ?
(meaning, will it be at the same set value throughout the life of the circuit)
Or will I get random changing delays, but close to the original set point ?
If it would not be that precise, how can its precision be improved ?
Or perhaps it would be better to use a different circuit/approach altogether ?
And, on that circuit, what would happen if the triggering switch is left on after the delay has passed ? Would it trigger again ? Or will it not trigger until the switch is released then pressed again ?
Thanks for all the help!
Sorry if I didn't explain this right...let me know if you need more info to help.