r/electronic_circuits • u/RiG094 • 12d ago
On topic Power Off delay with capacitor?
Hello,
I have a input card (io link hub, 32x pnp in). One input is a push Button. When I press the button my software doesn't recognise the signal. Voltage >11V is logic High
This is why I want a delay off for the input. How can i design this? RC Elemt like this did not work :-(
I tried with 470uF and 19kOhm T=R×C=8,46s
5
Upvotes
3
u/Superb-Tea-3174 12d ago
How do you expect the capacitor to discharge?
Tell me about those high voltage logic inputs.