Tool/software:
Problem:
1. I have a temp sensor that gives an alarm where a temp threshold is reach. So the output goes from 0 to 1.
2. The 1 feeds into a latch. The D latch further feeds a clock counter/ timing circuit what creates a 10s delay.
3. Now it is possible that the original alarm will be released in less than 10 s. By that I mean the temp falls below the threshold quickly. However, I want to wait the whole 10s before releasing the latch.
so I need one of two things. 1. switch that can be set with a pulse when the alarm goes to 1. And is reset by the counter logic output. 2. A 10s pulse that does not stop when the alam goes to zero and completes its cycle before releasing the latch.
I can't find a switch that has na independent release pin. And, do not know if the 10s pulse will complete one cycle before it ends even if the original trigger has seised to exist.
Thanks
Anand