Advantages of Schmitt Trigger over conventional Comparator and applications of Schmitt Trigger

TL;DR

Schmitt Trigger offers advantages such as high speed of response, no chattering, adjustable duty cycle, and possible use as a square wave generator. It finds applications in waveform conversion, temperature control, and over voltage/current protection.

Transcript

click the Bell icon to get latest videos from equator hello friends in today's video we are going to see what are the various advantages of symmetry go over a conventional comparator circuit so let's begin with the topic we know that comparator is a circuit which uses a thumb in open loop configuration comparator provides output which is either at ... Read More

Key Insights

• 🚄 Schmitt Trigger offers higher speed of response and noise immunity due to its use of positive feedback.
• 👻 It eliminates chattering in the output and allows for adjustable duty cycle, which is not possible in conventional comparator circuits.
• 🐎 Monolithic Schmitt Trigger circuits enhance the speed of operation.
• 😘 The sensitivity of Schmitt Trigger may be lower compared to conventional comparators.

Questions & Answers

Q: What makes Schmitt Trigger faster in operation compared to conventional comparators?

The application of positive feedback in Schmitt Trigger enhances the speed of operation by providing a higher speed of response.

Q: How does Schmitt Trigger eliminate chattering in the output?

The use of positive feedback in Schmitt Trigger introduces hysteresis, which increases the noise immunity of the circuit, thereby reducing false triggering and eliminating chattering.

Q: Can duty cycle be adjusted in a Schmitt Trigger circuit?

Yes, duty cycle can be adjusted in Schmitt Trigger circuits by varying the upper and lower threshold levels of voltage, allowing for customized on and off periods.

Q: What is a possible disadvantage of Schmitt Trigger compared to conventional comparators?

The sensitivity of Schmitt Trigger circuit is relatively low, meaning it may not identify small variations in the input voltage during the hysteresis width.

Summary & Key Takeaways

• Schmitt Trigger, a type of comparator circuit, utilizes positive feedback and offers advantages over conventional open loop comparators.

• Advantages of Schmitt Trigger include high speed of response, no chattering, adjustable duty cycle, and the ability to use monolithic Schmitt Trigger circuits.

• Schmitt Trigger finds applications in waveform conversion (from any type to square wave), one-shot temperature control, and over voltage/current protection circuits.