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Hysteresis is desirable in Schmitt-trigger because
- a)it would prevent noise from causing false triggering.
- b)effects of temperature would be compensated.
- c)devices in the circuit should be allowed time for saturation and unsaturation.
- d)energy is to be stored/discharged in parasitic capacitances.
Correct answer is option 'A'. Can you explain this answer?
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Hysteresis is desirable in Schmitt-trigger becausea)it would prevent n...
Hysteresis is desirable in a Schmitt trigger because it prevents noise from causing false triggering.
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Hysteresis is desirable in Schmitt-trigger becausea)it would prevent n...
Preventing False Triggering with Hysteresis in Schmitt-trigger:
Hysteresis is desirable in a Schmitt-trigger because it helps prevent noise from causing false triggering. Here's how it works:
1. Noise Immunity:
- In a Schmitt-trigger circuit, hysteresis introduces a small amount of positive feedback. This means that when the input signal crosses a certain threshold voltage (Vt), the output switches to its opposite state.
- The hysteresis loop ensures that the output remains stable even in the presence of noise. Without hysteresis, small fluctuations in the input signal could cause the output to toggle back and forth rapidly, leading to false triggering.
2. Threshold Voltage:
- Hysteresis sets two threshold voltages - Vth+ (upper threshold) and Vth- (lower threshold). The output switches to high when the input signal crosses Vth+ and switches back to low when it crosses Vth-.
- This difference between the two threshold voltages creates a window of stability, making the circuit less sensitive to noise and ensuring reliable operation.
3. Stability and Reliability:
- By providing a margin of safety between the two thresholds, hysteresis allows the circuit to tolerate input signal variations without triggering prematurely.
- This ensures that the Schmitt-trigger responds only to significant changes in the input signal, improving the overall stability and reliability of the circuit.
In conclusion, hysteresis in a Schmitt-trigger is essential for maintaining noise immunity, preventing false triggering, and ensuring stable and reliable operation in the presence of external disturbances.
Hysteresis is desirable in a Schmitt-trigger because it helps prevent noise from causing false triggering. Here's how it works:
1. Noise Immunity:
- In a Schmitt-trigger circuit, hysteresis introduces a small amount of positive feedback. This means that when the input signal crosses a certain threshold voltage (Vt), the output switches to its opposite state.
- The hysteresis loop ensures that the output remains stable even in the presence of noise. Without hysteresis, small fluctuations in the input signal could cause the output to toggle back and forth rapidly, leading to false triggering.
2. Threshold Voltage:
- Hysteresis sets two threshold voltages - Vth+ (upper threshold) and Vth- (lower threshold). The output switches to high when the input signal crosses Vth+ and switches back to low when it crosses Vth-.
- This difference between the two threshold voltages creates a window of stability, making the circuit less sensitive to noise and ensuring reliable operation.
3. Stability and Reliability:
- By providing a margin of safety between the two thresholds, hysteresis allows the circuit to tolerate input signal variations without triggering prematurely.
- This ensures that the Schmitt-trigger responds only to significant changes in the input signal, improving the overall stability and reliability of the circuit.
In conclusion, hysteresis in a Schmitt-trigger is essential for maintaining noise immunity, preventing false triggering, and ensuring stable and reliable operation in the presence of external disturbances.
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Hysteresis is desirable in Schmitt-trigger becausea)it would prevent noise from causing false triggering.b)effects of temperature would be compensated.c)devices in the circuit should be allowed time for saturation and unsaturation.d)energy is to be stored/discharged in parasitic capacitances.Correct answer is option 'A'. Can you explain this answer?
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Hysteresis is desirable in Schmitt-trigger becausea)it would prevent noise from causing false triggering.b)effects of temperature would be compensated.c)devices in the circuit should be allowed time for saturation and unsaturation.d)energy is to be stored/discharged in parasitic capacitances.Correct answer is option 'A'. Can you explain this answer?, a detailed solution for Hysteresis is desirable in Schmitt-trigger becausea)it would prevent noise from causing false triggering.b)effects of temperature would be compensated.c)devices in the circuit should be allowed time for saturation and unsaturation.d)energy is to be stored/discharged in parasitic capacitances.Correct answer is option 'A'. Can you explain this answer? has been provided alongside types of Hysteresis is desirable in Schmitt-trigger becausea)it would prevent noise from causing false triggering.b)effects of temperature would be compensated.c)devices in the circuit should be allowed time for saturation and unsaturation.d)energy is to be stored/discharged in parasitic capacitances.Correct answer is option 'A'. Can you explain this answer? theory, EduRev gives you an
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