Shmitt trigger

331

06:35:15

This system is a comparator with three states : 0, 1 and X.

The output signal depend of the input signal. This system have two limits : low and high.

To output a high signal, the input must be higher than the high limit. To output a low signal, the input must be lower than the low limit.

The value of the limits is given by the resistor bridge:

Ue- = -Vcc.(R1/R1+R2)
Ue+ = Vcc.(R1/R1+R2)

R1 is the resistor between ground and V+.
R2 is the resistor between V+ and the output.

The output signal is inverted : an high input give a low output ; a low input give an high output.

published 9 years ago

cemilamc

9 years ago

Tamam

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