Following are the Difference between Voltage comparator and Schmitt trigger.
| Voltage Comparator | Schmitt Trigger |
|---|---|
| Voltage Comparator has only one reference voltage. | It has two reference voltage utp and VLlt. |
| The input voltage applied to the non-inverting input and the fixed reference voltage to the inverting input and vice-versa. | The time varying input voltage is applied to the inverting input and the feedback voltage to the non-inverting input. |
| It is open loop system. | It is closed loop system. |
| It does not exhibit Hystersis. | Schmitt Trigger has Hystersis Characteristics. |
| It is used as zero crossing detector, variable threshold detector, level detector, peak-to-peak detector, phase detector, interfacing sense amplifier and pulse height discriminator. |
It is used as a wave shaping circuit, level detector and pulse-height discriminator. Its main use is to convert any kind of wave into square wave. |