To set up the inverting Schmitt trigger, you swap again the inputs Vin and VRef.
Note: The feedback resistor R3 is now connected to VRef!
![]() Circuit diagram inverting Schmitt trigger with a comparator. |
![]() Circuit inverting Schmitt trigger with a comparator. (Enlarge) |
Hence, you get the typical signal profile of an inverting Schmitt trigger...
![]() Signal profile inverting Schmitt trigger. |
In the next experiments you take a closer look at the output of the comparator...