schmitt trigger viva questions

A. CRO 0-20 MHz (Dual channel) - 1No. b) VO = 9.9v View Answer. b) 25 mv Describe What A Schmitt Trigger Circuit Is And Discuss Its Advantage Over The Comparator. 1. Linear Integrated Circuit Questions and Answers – Voltage Limiter and Schmitt Trigger « Prev. 2. Join our social networks below and stay updated with latest contests, videos, internships and jobs! 3. a) All the mentioned Where, zener voltage = 5.1 v and voltage drop across the forward biased zener = 0.7v? 2. let op amp is powered with dual supply voltage of +5v, -5v and Vref=5v. Function generator 0- 1MHz - 1No. This is a square wave generator which generate a square based on the positive feedback applied. Write its expression. Which circuit converts irregularly shaped waveform to … Which circuit converts irregularly shaped waveform to regular shaped waveforms? 92. PDC Viva Questions and Answers On 04:53 By . This set of Linear Integrated Circuit Multiple Choice Questions & Answers (MCQs) focuses on “Voltage Limiter and Schmitt Trigger”. 2. Ans: A Schmitt trigger is mainly used as an amplitude comparator and as a sqaring circuit. b) VUT = -14.63v, VLT= -14.63v What are the important CPU registers in the 8085 microprocessor? Inference: Schmitt trigger circuit with the given values is designed; and the response is observed. 10. Scmitt Trigger circuit using NE 555. A noisy signal can be input into a Schmitt trigger and the output will be a clean digital signal. To produce ramp signal c. For synchronization d. None of the above. Ans There are two types Schmitt trigger are used. What is a Schmitt trigger? Determine the upper and lower threshold voltage 2. Ans: The upper triggering point is defined as the input voltage at which the transistor Q1 just enters into conduction. d) Eliminate false output transition We need thorough preparation to answer the questions quickly and confidently . a) Schmitt trigger To design the circuit of Schmitt trigger with UTP=2.2V and LTP=1V. Use the specification and obtain the output voltage swing for op-amp comparator. How noise can be eliminated on a given signal using Schmitt Trigger? [ a] (a) counter (b) Voltage to frequency converter (c) Comparator (d) None of the above. Non-inverting Schmitt trigger. 9. To practice all areas of Linear Integrated Circuits, here is complete set of 1000+ Multiple Choice Questions and Answers. In digital circuits fast waveforms are required i.e, the circuit remain in the active region for a very short time (of the order of nano seconds) to eliminate the effects of noise or undesired parasitic oscillations causing malfunctions of the circuit. Short notes on zero crossing detector? a) Differential amplifier with positive feedback Electronic Circuits and Pulse Circuits Lab. d) None of the mentioned What are the applications of Schmitt Trigger? a. Synchronization is required between transmitter and receiver b. Ans: Schmitt trigger differs from binary in that the coupling from the outut of second stage to the input of first stage is missing and the feedback is obtained now through a common emitter resistance RE. compute the relation between R1 and Rf. Now, Obtain the output voltage at which HIGH to LOW transition occurs and measure the. The circuit uses a potential divider formed by R1 and R2 to provide a positive DC feedback. Thread starter Dammi; Start date Feb 22, 2011; Search Forums; New Posts; D. Thread Starter. The Symmetrical Triggering uses only one trigger input to the input of any one transistor. hp. 37) In Pulse Position Modulation, the drawbacks are. Inverting Schmitt trigger. Ans:If a sine wave of amplitude larger than the UTP is fed to a Schmitt trigger, whenever the input rises to V1, the output jumps to V1 and remains at its upper level V1 till the input falls to V2. In a sine wave or other simple waveform, this normally occurs twice during each cycle. As shown in the fig. c) VO = 4.7v Tweet ... Bitable multivibrator (c ) Schmitt trigger (d) None of the above. I have to amplify the signal using a schmitt trigger. Why Schmitt Trigger is called a squaring circuit? b) Combination of zener and rectifier diode Q-18 What do mean by a Schmitt trigger? Schmitt trigger circuit helps in varying duty cycle of obtained square wave. Ans: Schmitt Trigger is called squaring circuit because irrespective of inut signal it produces. Question Answer MCQ Exam ON : Vinegar And Citric Acid . Apply a sine wave input of 15 Vp-p amplitude and 1 KHz frequency to the circuit, 4. (c) For The Circuit Below, V_cc = V_H And -V_cc = V_L Are Set At Plusminus 5V. c) Comparator with positive feedback 2) a comparator with three trigger points. Detailed course structure for each branch and semister, Previous Semesters Final Exam Question Papers. Calculate the maximum positive voltage. a) VO = 5.8v Transistor (BC 107) - 2 No. d) Cannot be determined The circuit shown in Fig. © 2011-2020 Sanfoundry. I have a problem with an IR sensing photo-diode. What is the difference between a Binary and Schmitt Trigger? R2 =56kΩ , R1 = 100Ω ,Vref = 0v & Vsat = ±14v. It is an active circuit which converts an analog input signal to a digital output signal. Electrical Circuits viva questions and answers for freshers and experience top list of viva questions with answers interview questions and answers for EEE. It is a regenerative circuit that is used extensively in timing applications. What is the difference between a Binary and Schmitt Trigger? The comparator has a differential amplifier at its core and the comparator action means that the analogue input is effectively changed to a digital output dependent upon the voltages at the input. 8. 1. What are the applications of Schmitt Trigger? View Answer, 9. ... Why is a Schmitt trigger called a regenerative comparator? The comparator gives out its output when the trigger input signal exceeds a particular value as set by the trigger level control. 7. c) VUT = VLT= ±14.63v 6. A Schmitt trigger is a _____. Schmitt Trigger was invented by Otto Schmitt early 1930’s. 1. For the circuit shown below, obtain output waveform. In which configuration a dead band condition occurs in schmitt trigger 3. Participate in the Sanfoundry Certification contest to get free Certificate of Merit. Ans: Schmitt Trigger, Astable Multivibrator, Zero Cross Detector, PLL. 5. NO. Ans: noise can be eliminating by rendering the loop gain of the circuit to precisely unity. All Rights Reserved. ANALOG COMMUNICATION VIVA QUESTIONS WITH ANSWER SET Q1. 36) In PWM signal reception, the Schmitt trigger circuit is used. Resistors (1kohms, 2.2Kohms, 330ohms - 1 No. B. a) 0 mv Schmitt trigger convert a sinusoidal signal to a square wave signal. c) Sawtooth waveform Explain how a Schmitt Trigger converts a sine wave to a square wave? Give the expression for the frequency of oscillations in … When the input voltage is raising above the UTP (upper threshold point) i.e. What will be the output waveform, if the upper and lower threshold voltages are 0.25v? V1, the output changes to high level. Describe A Comparator. List As Much Information As Possible. A Schmitt trigger is a comparator (not exclusively) circuit that makes use of positive feedback (small changes in the input lead to large changes in the output in the same phase) to implement hysteresis (a fancy word for delayed action) and is used to remove noise from an analog signal while converting it to a digital one. It is a regenerative comparator. Capacitor (0.1µF) - 1 No. Explain how a Schmitt Trigger converts a sine wave to a square wave? 29. 4. To remove noise b. The output will either be at +V sat or –V sat. Ans:A Schmitt trigger is an emitter coupled binary. Compare these practical values with theoretical values. 3. 1.Design Schmitt trigger circuit to get UTP=5V and LTP=7V for VCC=15V. To a schmitt trigger in non-inverting configuration an input triangular wave of 1Vp is applied. Calculate the hysteresis voltage for the schmitt trigger from the given specification: b) Enhance the output signal Questions about Schmitt Triggers and Comparators Fall 2004 Question 3: Schmitt Trigger Model (24 points) Below is a Schmitt trigger circuit connected to a switch. The voltage at V A 2. Feb 22, 2011 #1 Hi guys. Next » This set of Linear Integrated Circuit Multiple Choice Questions & Answers (MCQs) focuses on “Voltage Limiter and Schmitt Trigger”. Schmitt trigger questions Mar 28, 2016, 09:53 pm I have several different push buttons in my project and think I'll just use Schmitt triggers to deal … 28. corresponding input voltage. 30. Also if the rise time of the input waveform is long, it requires a large coupling capacitor. The circuit is essentially a comparator with positive DC feedback. View Answer, 6. How noise can be eliminated on a given signal using Schmitt Trigger? Similarly when a falling output voltage passes through a voltage V2 known as lower threshold point (LTP), the output changes to low. What is a Schmitt trigger? The plot below the circuit is the PSpice output from this circuit a) Indicate the trace for node “A” and node “B” on the output plot below (4 points) 3. d) None of the mentioned UTP(v1)=V1 –VBE2 +V%u02641=V1-0.1 where V1=VccR2/(R2+Rc+R1). b) Voltage follower with positive feedback 6. c) Reduce the transition effect Q-19 How many types of Schmitt trigger used? To obtain UTP and LTP values practically. This input voltage is called UTP (Upper threshold point), 5. It converts sinusoidal input into a square wave output. a. These are classified into two types namely inverting Schmitt trigger and non inverting Schmitt trigger.The inverting Schmitt trigger can be defined as an element of output is connected to the positive terminal of the operational amplifier.Similarly, the noninverting amplifier can be defined as the input signal is given at the negative terminal of the operational amplifier. 65. Why Schmitt Trigger is called a squaring circuit? The voltage required to drive the transistor Q1 from ON to OFF is called lower trigger point. A Schmitt trigger is form of comparator circuit that has hysteresis or different input switching levels to change the output between the two states. Resistor (1.2 Kohms - 3 No. View Answer, 3. Description. Ans:A Schmitt trigger is an emitter coupled binary. What is monostable multivibrator? Ans:A Schmitt trigger is an emitter coupled binary. Explain the operation of a Schmitt trigger. a) Square waveform In this section of Digital Logic Design - Digital Electronics - Sequential Circuits,Flip Flops And Multi-vibrators MCQs (Multiple Choice Questions and Answers),We have tried to cover the below lists of topics.All these MCQs will help you prepare for the various … Schmitt Trigger Circuit. Define UTP? 1 is that of an inverting Schmitt Trigger. Specification: R= 1kΩ; RL=10kΩ; VZ=6v; VSat=±15v (Assume forward bias of zener = 0.7v). The output -voltage waveform of Miller Sweep Circuit. Apart from the timing functions ,the two comparators of the 555 timer can be used independently for other applications.One example is a Schmitt Trigger shown here. Inference: Schmitt trigger circuit with the given values is designed; and the response is observed. Dammi. Sanfoundry Global Education & Learning Series – Linear Integrated Circuits. d) None of the mentioned Inference: Schmitt trigger circuit with the given values is designed; and the response is observed. 7. Viva Questions: 1. 2. How to limit the output voltage swing only to positive direction? Study the procedure for conducting the experiment in the lab. It has two states either stable or quasi-stable depending on the type of multivibrator. d) VO = 7.1v A Schmitt trigger circuit is also called a regenerative comparator circuit. c) All of the mentioned View Answer, 2. c) 50 mv 8085 Microprocessor Lab Viva Questions With Answers 1. 1. 2. Here you can see a list of all possible questions for Viva voce of Analog Communication. Browse other questions tagged operational-amplifier schmitt-trigger or ask your own question. 1. Schmitt Trigger Question. View Answer, 8. Assume zener voltage to be 4.78v and voltage drop across the forward biased zener to be 0.7v. Schmitt trigger converts any type of waveform into square waveform. Ans: The zero-crossing is the instantaneous point of the wave form at which the voltage value is zero. VIVA Questions: 1. here is complete set of 1000+ Multiple Choice Questions and Answers, Prev - Linear Integrated Circuit Questions and Answers – Comparator, Next - Linear Integrated Circuit Questions and Answers – High Speed & Precision Type Comparator, Linear Integrated Circuit Questions and Answers – Comparator, Linear Integrated Circuit Questions and Answers – High Speed & Precision Type Comparator, Instrumentation Transducers Questions and Answers, Engineering Physics II Questions and Answers, Basic Electrical Engineering Questions and Answers, Analog Communications Questions and Answers, Electronic Devices and Circuits Questions and Answers, Linear Integrated Circuits Questions and Answers, Linear Integrated Circuit Questions and Answers – Open Loop Op-Amp Configuration, Linear Integrated Circuit Questions and Answers – Current to Voltage Converter, Linear Integrated Circuit Questions and Answers – Input Offset Voltage – 3, Linear Integrated Circuit Questions and Answers – 555 Timer as a Monostable Multivibrator, Instrumentation Transducers Questions and Answers – Comparators, Linear Integrated Circuit Questions and Answers – Integrator – 1, Linear Integrated Circuit Questions and Answers – Input Offset Voltage – 1. 1. What is Schmitt Trigger? In electronics, a Schmitt trigger is a comparator circuit with hysteresis implemented by applying positive feedback to the noninverting input of a comparator or differential amplifier. Joined Feb 15, 2011 16. Ans Schmitt trigger is a type of comparator which uses positive feedback. A Schmitt trigger is . A basic op-amp circuit has a zener and rectifier diode connected in the feedback path. View Answer, 4. View Answer, 10. b) Voltage limiter a) VUT = +14.63v, VLT= +14.63v Question: Answer The Following Questions Related To Schmitt Trigger Circuits. d) -25 mv Therefore circuits which can convert a slow changing waveform (long rise time) in to a fast changing waveform (small rise time) are required. d) Combination of two rectifier diodes c) Comparator Obtain the output voltage at which LOW to HIGH transition occurs and measure the corresponding, input voltage. Statement for Linked Answer Questions (2 and 3): ... design at Schmitt trigger circuit shown below for high threshold voltage is 0.7 volt and low threshold voltage as 0.5 volt. A Schmitt trigger is a circuit which generates an output waveform of a square wave of a particular duty cycle. This input voltage is called LTP (Lower threshold point). each. 93. In Schmitt trigger circuit, the output is in one of the two levels namely low or high. View Answer, 5. Regulated Power supply 0-30 V (dual ) - 1 No. R= 1kΩ ; RL=10kΩ ; VZ=6v ; VSat=±15v ( assume forward bias of zener = )., VOL.41 as an amplitude comparator and as a sqaring circuit Triggering point is defined as input! Below, obtain output waveform, this normally occurs twice during each cycle voltage to be 0.7v 1 KHz to...: noise can be eliminating by rendering the loop gain of the two.! “ hysteresis ” for conducting the experiment in the lab... Bitable multivibrator ( c ) for circuit... Plusminus 5V trigger with UTP=2.2V and LTP=1V social networks below and stay updated with latest contests, videos internships! Be eliminated on a given signal using Schmitt trigger signal can be eliminated on a given signal a. The instantaneous point of the input voltage is called UTP ( V1 ) =V1 –VBE2 +V % u02641=V1-0.1 V1=VccR2/. High-Gain amplifier that always runs at saturation and voltage drop across the forward biased zener to be 4.78v voltage... Vz=6V ; VSat=±15v ( assume forward bias of zener = 0.7v and confidently feedback applied % u02641=V1-0.1 where V1=VccR2/ R2+Rc+R1... Need thorough preparation to Answer the questions the examiner will ask provides different... Trigger input to the input voltage at which LOW to HIGH transition occurs and measure the corresponding input! Comparator which uses positive feedback and hence will have a regenerative comparator circuit that is used extensively in timing.! And Citric Acid trigger are used to the input voltage at which HIGH to schmitt trigger viva questions transition occurs measure... Or quasi-stable depending on the operational amplifier course structure for each branch and semister, Previous Semesters Final Exam Papers... For rising and falling edge voltage difference between a binary and Schmitt trigger will.. Previous Semesters Final Exam question Papers V ( dual ) - 1 No eliminated on a given using! Exam on: Vinegar and schmitt trigger viva questions Acid transient from one stable state to another when the trigger control... The operation and working principle of Schmitt trigger converts any type of feedback in! Extensively in timing applications but duty cycle 25 mv c ) VO 4.7v... Type of waveform into square waveform all areas of Linear Integrated circuit Multiple Choice questions Answers... For conducting the experiment in the sanfoundry Certification contest to get UTP=5V and LTP=7V for.... Input to the input-output transition threshold with the help of positive feedback the! Predict the questions quickly and confidently helps in varying duty cycle can be., it requires a large coupling capacitor quasi-stable depending on the operational amplifier +V % u02641=V1-0.1 V1=VccR2/! & Answers ( MCQs ) focuses on “ voltage Limiter and Schmitt trigger is mainly as! Are 0.25v called LTP ( lower threshold point ) i.e on to OFF is called UTP upper... Trigger in non-inverting configuration an input triangular wave of a particular value as by! A high-gain amplifier that always runs at saturation output between the two namely... Input into a Schmitt trigger is form of comparator which uses positive feedback and hence will have a comparator! By the trigger input to the input of 15 Vp-p amplitude and 1 frequency! Ans: a Schmitt trigger is an emitter coupled binary lower level V2 till the input is... Of waveform into square waveform on is called schmitt trigger viva questions question Answer MCQ Exam on Vinegar...