Lower threshold voltage VLT = [R1/(R1+ R2)]×( -Vsat) = [10kΩ /(10kΩ+250Ω)]×(-15v)= -14.63v. 3. What happens if the threshold voltages are made longer than the noise voltages in schmitt trigger?
A. All the mentioned
B. Enhance the output signal
C. Reduce the transition effect
D. Eliminate false output transition
Answer:A
Lower threshold voltage VLT = [R1/(R1+ R2)]×( -Vsat) = [10kΩ /(10kΩ+250Ω)]×(-15v)= -14.63v. 3. What happens if the threshold voltages are made longer than the noise voltages in schmitt trigger?
A. All the mentioned B. Enhance the output signal C. Reduce the transition effect D. Eliminate false output transition
Explanation: In schmitt trigger, if the threshold voltage VUT and VLT are made larger than the input noise voltage. The positive feedback will eliminate the false output transition. 4. To a schmitt trigger in non-inverting configuration an input triangular wave of 1Vp is applied. What will be the output waveform, if the upper and lower threshold voltages are 0.25v?