Hi
Does anyone have a good site I can go to for some monostable one shots from a 555 timer IC?
I need a one shot that will create a 1ms pulse or even 2ms from a 5ms input pulse.
The main thing here is that the input pulse is actually longer than the output pulse.
Ive seen plenty of oneshots that can make smaller pulses than the input but none that make longer ones than the input and that can be retriggered as much as i want.
Ideally the input pulse to the 555 is simply a pulse that can vary from 1 to 10 ms, like a pushbutton switch pressed fast but I need a accurate 1ms pulse to come out of it that will be 1ms even if I have the trigger pulse held on all day.
Say I press a pushbutton switch as the trigger for as short of time as I could, i need a 1ms pulse to be generated from that but the 1ms pulse has to be generated as fast as I can press the button but if I hold the button down, still only a 1ms pulse will come out.
Do you know what I mean??
Is this easy to do from a 555 or do I need a different IC?
I dont have any simulation software so the circuits I have been trying have been all hardware.
Could someone simulate something similar for me and show me the results?
Ive tried about 5 different circuits but none do what I need.
Thanks alot.
Does anyone have a good site I can go to for some monostable one shots from a 555 timer IC?
I need a one shot that will create a 1ms pulse or even 2ms from a 5ms input pulse.
The main thing here is that the input pulse is actually longer than the output pulse.
Ive seen plenty of oneshots that can make smaller pulses than the input but none that make longer ones than the input and that can be retriggered as much as i want.
Ideally the input pulse to the 555 is simply a pulse that can vary from 1 to 10 ms, like a pushbutton switch pressed fast but I need a accurate 1ms pulse to come out of it that will be 1ms even if I have the trigger pulse held on all day.
Say I press a pushbutton switch as the trigger for as short of time as I could, i need a 1ms pulse to be generated from that but the 1ms pulse has to be generated as fast as I can press the button but if I hold the button down, still only a 1ms pulse will come out.
Do you know what I mean??
Is this easy to do from a 555 or do I need a different IC?
I dont have any simulation software so the circuits I have been trying have been all hardware.
Could someone simulate something similar for me and show me the results?
Ive tried about 5 different circuits but none do what I need.
Thanks alot.
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