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Compare the comparator and Schmitt trigger.
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written 2.0 years ago by |
Solution:
comparator | schmitt trigger |
---|---|
feedback is not used op-amp operates in an open loop configuration. | Positivefeedback is used |
For an ideal comparator the upper and lower trigger levels happen to be at zero volts or at the Vref. | The upper and lower trigger levels have distinct values. |
The output voltage can be either $+V_{\text {sat or - Vat }}$ | The output voltage conn be either Heat or -Vat |
For an ideal comparator hysteresis voltage is zero | $V_H=V_{U T}-V_{L T}$. A nonzero hysteresis is present. |
zero crossing detector, window detector. | To convert any waveform to a square wave. |