From the circuit's point of view, those two conditions are exactly the same. The problem as I understand it is that you want to detect a middle state that is greater than 120 M and and less than infinity. If this is correct, then here is another approach.I know when I remove the R7 the resistance, at that node resistance become infinity so, the GREEN LED will glow.
For R7 open condition I just want to glow ORANGE LED..
Input protection.U1 should have low input bias currents.
Can I use LM393? Or please suggest any other comparator which suits my requirement. It should source enough current....................
Your most serious mistake is that the LT1017 cannot source enough current
I know it is hard to find on the datasheet but it source current = 0!most voltage compare ICs; the output only pulls down, does not pull up.
...
Just as a doubt; want to ask can I pull up the LT1017 output?
Also, can I use a 14mA buzzer parallel to LED, if LED glows a beep sound also we can hear?
....
We use cookies and similar technologies for the following purposes:
Do you accept cookies and these technologies?
We use cookies and similar technologies for the following purposes:
Do you accept cookies and these technologies?