Schmitt trigger
Appearance
![](http://upload.wikimedia.org/wikipedia/commons/3/3a/Schmitttrigger_symbol.png)
A Schmitt trigger is an electronic device which can moderate analog signal values only to zero or one (0 / 1). It can be made of a couple transistors, or several triggers can be arranged in an integrated circuit.
- Uses
- Converting analog signals to digital
- Oscillators