tony ennis
New Member
Ok, here is the standard photo-transistor circuit:
**broken link removed**
Now, looking at the one on the left, what is the purpose of the resistor?
One source I read said that as that resistor got larger (about 5kΩ) the circuit was in 'switching' mode which sounds better for my application.
**broken link removed**
Now, looking at the one on the left, what is the purpose of the resistor?
One source I read said that as that resistor got larger (about 5kΩ) the circuit was in 'switching' mode which sounds better for my application.