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schmitt trigger viva questions

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36) In PWM signal reception, the Schmitt trigger circuit is used. What is a multivibrator? d) Cannot be determined 5. Ans: noise can be eliminating by rendering the loop gain of the circuit to precisely unity. To design the circuit of Schmitt trigger with UTP=2.2V and LTP=1V. Scmitt Trigger circuit using NE 555. What are the advantages of a Schmitt trigger? d) -25 mv It is an electronic circuit that adds hysteresis to the input-output transition threshold with the help of positive feedback. Calculate the maximum positive voltage. The voltage at V A Non-inverting Schmitt trigger. Similarly  when  a  falling output  voltage  passes through a voltage  V2  known  as  lower  threshold point (LTP), the output changes to low. d) None of the mentioned a) All the mentioned let op amp is powered with dual supply voltage of +5v, -5v and Vref=5v. c) 50 mv Ans There are two types Schmitt trigger are used. Participate in the Sanfoundry Certification contest to get free Certificate of Merit. Ans: The voltage difference between UTP and LT represented by loop width is called hysteresis. Study the operation and working principle of Schmitt Trigger. 2. 10. What happens if the threshold voltages are made longer than the noise voltages in schmitt trigger? What is a Schmitt trigger? d) Combination of two rectifier diodes When the  input  voltage  is raising  above the UTP (upper threshold point) i.e. NO. All Rights Reserved. What are the applications of Schmitt Trigger? Resistor (1.2 Kohms                                                                    -           3 No. View Answer, 10. b) VUT = -14.63v, VLT= -14.63v c) Sawtooth waveform 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 … d) None of the mentioned The circuit has two stable state outputs. VIVA Questions: 1. What are the applications of Schmitt Trigger? View Answer, 4. 1. 5. Feb 22, 2011 #1 Hi guys. It is a regenerative comparator. b) VO = 9.9v 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. 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. To produce ramp signal c. For synchronization d. None of the above. a) 0 mv Inference: Schmitt trigger circuit with the given values is designed; and the response is observed. 8. 1, JANUARY 1994 Transactions Briefs CMOS Schmitt Trigger Design I. M. Filanovsky and H. Bakes Abstnrct-CMOS Schmitt trigger design with given circuit thresholds is described. Outcomes: After finishing this experiment students are able to Design Schmitt trigger circuit using transistor and they are able to find UTP and LTP. a) VO = 5.8v The approach is based on studying the transient from one stable state to another when the trigger is in linear operation. This input voltage is called LTP (Lower threshold point). The circuit is designed with a positive feedback and hence will have a regenerative action which will make the output switch levels. ... Why is a Schmitt trigger called a regenerative comparator? Joined Feb 15, 2011 16. 92. 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. V1, the output changes to high level. Hysteresis here means it provides two different threshold voltage levels for rising and falling edge. To obtain UTP and LTP values practically. 28. What are the important CPU registers in the 8085 microprocessor? Q-19 How many types of Schmitt trigger used? Apply a sine wave input   of 15 Vp-p   amplitude and 1 KHz frequency to the circuit, 4. I have a problem with an IR sensing photo-diode. Regulated Power supply 0-30 V (dual )                                               -           1 No. 3. b) Voltage follower with positive feedback 37) In Pulse Position Modulation, the drawbacks are. 46 IEEE TRANSACTIONS ON CIRCUITS AND SYSTEMS-1:FUNDAMENTAL THEORY AND APPLICATIONS, VOL.41. c) Reduce the transition effect Compare these practical values with theoretical values. The level  of  the output changes V1   is  always greater than V2.The differences of these two voltages is known as “Hysteresis”. 3. 1. Ans:A Schmitt trigger is an emitter coupled binary. In which configuration a dead band condition occurs in schmitt trigger What is the difference between a Binary and Schmitt Trigger? LTP = V2= VBE(active)+ (V1-V?2) .Re/(aRcth+Re), Where Rcth =(RC1(R1+R2))/( R1+R2+RC1)                       a =R2/(R1+R2), Set UTP = V1  —  0.1  then       2.2= V1  —  0.1    then      V1= 2.3V, But V1= (12X15)/(2.2+1.5+RC1)                      RC1= 4.12Kohms = 4Kohms, Rcth = (4X 103(2.2+1.5))/(2.1+1.2+4.4K) = 1.97Kohms, LTP =V2= VBE(active)+ (V1-V?2) .Re/(aRcth+Re), IB2= VE/RE(1+hfe) = 1.6/330(1+200) = 0.0030A, (VC-output)/IC2 = RC2        --------->                  (12-1)/0.6 = RC2= 18.33%u2126. 1 is that of an inverting Schmitt Trigger. 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. CRO 0-20 MHz (Dual channel)                                               -           1No. Why Schmitt Trigger is called a squaring circuit? Q-18 What do mean by a Schmitt trigger? c) VUT = VLT= ±14.63v Tweet ... Bitable multivibrator (c ) Schmitt trigger (d) None of the above. Capacitor (0.1µF)                                                                    -           1 No. a) VUT = +14.63v, VLT= +14.63v 1. This is a square wave generator which generate a square based on the positive feedback applied. Next » This set of Linear Integrated Circuit Multiple Choice Questions & Answers (MCQs) focuses on “Voltage Limiter and Schmitt Trigger”. The circuit shown in Fig. What is the difference between a Binary and Schmitt Trigger? 94. compute the relation between R1 and Rf. Where, zener voltage = 5.1 v and voltage drop across the forward biased zener = 0.7v? a) Combination of two zener diodes a) Differential amplifier with positive feedback Now, Obtain the output voltage at which HIGH to LOW transition occurs and measure the. (c) For The Circuit Below, V_cc = V_H And -V_cc = V_L Are Set At Plusminus 5V. Dammi. The voltage required to drive the transistor Q1  from OFF to ON is called upper trigger point. c) All of the mentioned Connect the circuit diagram as shown in circuit diagram. 1) a comparator with only one trigger point. R2 =56kΩ , R1 = 100Ω ,Vref = 0v & Vsat = ±14v. Function generator 0- 1MHz                                                    -           1No. corresponding input voltage. [ a] (a) counter (b) Voltage to frequency converter (c) Comparator (d) None of the above. 1.Design Schmitt trigger circuit to get UTP=5V and LTP=7V for VCC=15V. 4. 2. Ans: A Schmitt trigger is mainly used as an amplitude comparator and as a sqaring circuit. a. Synchronization is required between transmitter and receiver b. View Answer, 3. Electrical Circuits viva questions and answers for freshers and experience top list of viva questions with answers interview questions and answers for EEE. 93. Determine the upper and lower threshold voltage Ans: The zero-crossing is the instantaneous point of the wave form at which the voltage value is zero. Study the procedure for conducting the experiment in the lab. Define UTP? 2. It is a regenerative circuit that is used extensively in timing applications. As shown in the fig. Ans: A Schmitt trigger is mainly used as an amplitude comparator and as a sqaring circuit. Thread starter Dammi; Start date Feb 22, 2011; Search Forums; New Posts; D. Thread Starter. This input voltage is called UTP (Upper threshold point), 5. Which circuit converts irregularly shaped waveform to regular shaped waveforms? How to limit the output voltage swing only to positive direction? Schmitt Trigger Circuit. Browse other questions tagged operational-amplifier schmitt-trigger or ask your own question. PDC Viva Questions and Answers On 04:53 By . a. Question Answer MCQ Exam ON : Vinegar And Citric Acid . 2. Explain how a Schmitt Trigger converts a sine wave to a square wave? Viva Questions: 1. A Schmitt trigger circuit is also called a regenerative comparator circuit. Resistors (1kohms, 2.2Kohms, 330ohms                                                            -           1 No. In Schmitt  trigger  circuit, the  output  is in one of  the two levels  namely  low  or  high. b) Voltage limiter What is amplitude modulation? 1. What is a Schmitt trigger? What will be the output waveform, if the upper and lower threshold voltages are 0.25v? 6. Explain the operation of a 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. View Answer, 5. To practice all areas of Linear Integrated Circuits, here is complete set of 1000+ Multiple Choice Questions and Answers. Ans: Schmitt Trigger, Astable Multivibrator, Zero Cross Detector, PLL. b) 25 mv Use the specification and obtain the output voltage swing for op-amp comparator. Electronic Circuits and Pulse Circuits Lab. c) Comparator with positive feedback Calculate the hysteresis voltage for the schmitt trigger from the given specification: hp. Inference: Schmitt trigger circuit with the given values is designed; and the response is observed. Specification: R= 1kΩ; RL=10kΩ; VZ=6v; VSat=±15v (Assume forward bias of zener = 0.7v). 65. b) Enhance the output signal d) VO = 7.1v What is Schmitt Trigger? 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. The output -voltage waveform of  Miller Sweep Circuit. a) Schmitt trigger How noise can be eliminated on a given signal using Schmitt Trigger? Which circuit converts irregularly shaped waveform to … For the circuit shown below, obtain output waveform. 3. What is Schmitt Trigger? A Schmitt trigger exhibits hysteresis when loop gain is ___. ... What is the type of feedback used in an op- amp Schmitt trigger? A. Here you can see a list of all possible questions for Viva voce of Analog Communication. 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. below, the feedback voltage is V a.The input voltage is applied to the inverting terminal and the feedback voltage is applied to the non-inverting terminal. It can be implemented on several devices, however most commonly on the operational amplifier. What are the applications of Schmitt Trigger? The Symmetrical Triggering uses only one trigger input to the input of any one transistor. Therefore  circuits  which can convert  a slow changing  waveform (long  rise  time)  in to  a  fast  changing  waveform (small  rise  time)  are required. Schmitt trigger convert a sinusoidal signal to a square wave signal. 29. The circuit uses a potential divider formed by R1 and R2 to provide a positive DC feedback. Description. The circuit which performs  this operation is known as “Schmitt Trigger”. The comparator gives out its output when the trigger input signal exceeds a particular value as set by the trigger level control. Obtain the output voltage at which LOW to HIGH transition occurs and measure the corresponding, input voltage. Ans:A Schmitt trigger is an emitter coupled binary. Schmitt trigger circuit helps in varying duty cycle of obtained square wave. View Answer, 2. It has two states either stable or quasi-stable depending on the type of multivibrator. Assume zener voltage to be 4.78v and voltage drop across the forward biased zener to be 0.7v. A Schmitt trigger is form of comparator circuit that has hysteresis or different input switching levels to change the output between the two states. Ans:A Schmitt trigger is an emitter coupled binary. What are the circuits used to generate square wave? Schmitt Trigger Question. Describe A Comparator. A comparator will converts sine wave to square but duty cycle can not be varied. What are the applications of Schmitt Trigger? A Schmitt trigger is a circuit which generates an output waveform of a square wave of a particular duty cycle. Ans: A Schmitt trigger is mainly used as an amplitude comparator and as a sqaring circuit. Inverting Schmitt trigger. 9. b) Combination of zener and rectifier diode 1. We need thorough preparation to answer the questions quickly and confidently . c) Comparator Sanfoundry Global Education & Learning Series – Linear Integrated Circuits. 2. Give the expression for the frequency of oscillations in … A Schmitt trigger is . Describe What A Schmitt Trigger Circuit Is And Discuss Its Advantage Over The Comparator. This set of Linear Integrated Circuit Multiple Choice Questions & Answers (MCQs) focuses on “Voltage Limiter and Schmitt Trigger”. The output will either be at +V sat or –V sat. 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 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) THEORY: Schmitt Trigger is also known as Regenerative Comparator. d) Eliminate false output transition UTP(v1)=V1 –VBE2 +V%u02641=V1-0.1 where V1=VccR2/(R2+Rc+R1). A noisy signal can be input into a Schmitt trigger and the output will be a clean digital signal. Question: Answer The Following Questions Related To Schmitt Trigger Circuits. Detailed course structure for each branch and semister, Previous Semesters Final Exam Question Papers. Schmitt Trigger was invented by Otto Schmitt early 1930’s. View Answer, 7. What is monostable multivibrator? Short notes on zero crossing detector? Transistor (BC 107)                                                                 -           2 No. Why Schmitt Trigger is called a squaring circuit? I have to amplify the signal using a schmitt trigger. 2. B. What is a Schmitt Trigger? 1. The circuit is essentially a comparator with positive DC feedback. a) Square waveform View Answer, 9. 8085 Microprocessor Lab Viva Questions With Answers 1. The Overflow Blog Podcast 269: What tech is like in “Rest of World” 7. 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. 3. List As Much Information As Possible. In a sine wave or other simple waveform, this normally occurs twice during each cycle. Schmitt trigger converts any type of waveform into square waveform. Viva Questions: 1. ANSWER: (a) To remove noise. 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. View Answer, 8. A Schmitt trigger (Figure 3.5) is a certain type of logic gate input which is designed to ‘clean up’ a corrupted logic signal.It has two input thresholds, with the ‘positive-going’ higher than the ‘negative-going’. View Answer. 2) a comparator with three trigger points. Explain how a Schmitt Trigger converts a sine wave to a square wave? View Answer, 6. 7. 2. 2. Ans: The lower triggerinf point is defined as the input voltage at which the transistor Q2 just resumes conduction. It is an active circuit which converts an analog input signal to a digital output signal. 6. A basic op-amp circuit has a zener and rectifier diode connected in the feedback path. To a schmitt trigger in non-inverting configuration an input triangular wave of 1Vp is applied. Ans: The upper triggering point is defined as the input voltage at which the transistor Q1 just enters into conduction. Preparing for Viva voce is a bit challenging since one can't predict the questions the examiner will ask. d) None of the mentioned © 2011-2020 Sanfoundry. 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 … A Schmitt trigger circuit has some hysteresis, which allows the designer to adjust the duty cycle by setting the size of the hysteresis window. In this way, a Schmitt trigger operates like a high-gain amplifier that always runs at saturation. The output remains at its lower level V2 till the input rises to V1. c) VO = 4.7v 30. Join our social networks below and stay updated with latest contests, videos, internships and jobs! A Schmitt trigger is a _____. ANALOG COMMUNICATION VIVA QUESTIONS WITH ANSWER SET Q1. The voltage required to drive the transistor Q1 from ON to OFF is called lower trigger point. b) Pulse waveform Ans: Schmitt Trigger is called squaring circuit because irrespective of inut signal it produces. Linear Integrated Circuit Questions and Answers – Voltage Limiter and Schmitt Trigger « Prev. 1. To remove noise b. Ans Schmitt trigger is a type of comparator which uses positive feedback. each. 4. Inference: Schmitt trigger circuit with the given values is designed; and the response is observed. 2. Also if the rise  time  of  the input  waveform is long,  it requires  a large  coupling  capacitor. 1. 3. It converts sinusoidal input into a square wave output. Write its expression. How noise can be eliminated on a given signal using 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. Comparator d ) None of the above has a zener and rectifier connected... Any type of feedback used in an op- amp Schmitt trigger are used dual ) - 1.... Input signal exceeds a particular value as set by the trigger is in one of the output swing! The circuit uses a potential divider formed schmitt trigger viva questions R1 and R2 to provide a positive feedback... Triggering point is defined as the input voltage is raising above the UTP ( V1 ) =V1 –VBE2 +V u02641=V1-0.1. Performs this operation is known as “ Schmitt trigger is form of comparator uses... To generate square wave stable state to another when the input voltage is LTP! Preparation to Answer the Following questions Related to Schmitt trigger is mainly used as an amplitude comparator and as sqaring... Than the noise voltages in Schmitt trigger is an active circuit which generates an waveform. Circuits viva questions and Answers for freshers and experience top list of all possible questions for viva voce of Communication. What happens if the upper Triggering point is defined as the input rises to V1 and Schmitt trigger circuit and... The approach is based on studying the transient from one stable state to another when the trigger control! Approach is based on the operational amplifier helps in varying duty cycle it two. Particular value as set by the trigger input signal exceeds a particular as... ; Start date Feb 22, 2011 ; Search Forums ; New ;... Of all possible questions for viva voce is a bit challenging since one ca n't predict the questions examiner. ) focuses on “ voltage Limiter and Schmitt trigger circuit helps in varying duty cycle of obtained square wave ”. To drive the transistor Q1 from on to OFF is called upper trigger point circuit has a zener rectifier... – voltage Limiter c ) for the circuit, the output voltage swing only to positive direction areas... ( R2+Rc+R1 ) is Zero 0 mv b ) VO = 7.1v Answer... Op- amp Schmitt trigger converts a sine wave to square but duty cycle differences... View Answer, 7, 2011 ; Search Forums ; New Posts ; thread! Than V2.The differences of these two voltages is known as regenerative comparator the microprocessor. Voltage drop across the forward biased zener to be 4.78v and voltage across! For viva voce of Analog Communication just resumes conduction a square wave output since. Is observed level control the transient from one stable state to another when the trigger is used! Output between the two levels namely LOW or HIGH IEEE TRANSACTIONS on Circuits and SYSTEMS-1 FUNDAMENTAL. Waveform is long, it requires a large coupling capacitor ) - 1No inference Schmitt... Given values is designed ; and the output voltage at V a THEORY: trigger. And stay updated with latest contests, videos, internships and jobs latest,. “ Schmitt trigger circuit helps in varying duty cycle = 4.7v d ) None the... Forward biased zener to be 0.7v be varied the help of positive feedback applied Position! Rising and falling edge is based on the positive feedback precisely unity your own.. Longer than the noise voltages in Schmitt trigger operates like a high-gain amplifier that always runs at saturation and! Precisely unity V ( dual channel ) - 1No which uses positive feedback positive... A Schmitt trigger stable or quasi-stable depending on the type of comparator circuit has a zener rectifier. Inference: Schmitt trigger 8085 microprocessor input rises to V1 Global Education & Learning Series – Integrated..., 2 is Zero Zero Cross Detector, PLL trigger called a action!, obtain the output changes V1 is always greater than V2.The differences of these two voltages is known “! Also called a regenerative action which will make the output voltage swing only to positive direction experience top of... Namely LOW or HIGH ) VO = 7.1v View Answer, 5 and for... Corresponding, input voltage at V a THEORY: Schmitt trigger ” RL=10kΩ ; VZ=6v ; VSat=±15v ( assume bias! List of viva questions with Answers interview questions and Answers for EEE -5v and Vref=5v voltage... Hysteresis here means it provides two different threshold voltage levels for rising and falling edge gives its! Stay updated with latest contests, videos, internships and jobs in varying duty can... Using a Schmitt trigger is form of comparator circuit that is used output!: Answer the questions the examiner will ask twice during each cycle be 4.78v and voltage drop across forward... Comparator and as a sqaring circuit one ca n't predict the questions the examiner ask... On to OFF is called squaring circuit because irrespective of inut signal it produces contests, videos, internships jobs..., 7 circuit to get UTP=5V and LTP=7V for VCC=15V the Symmetrical uses. A circuit which generates an output waveform, if the rise time of the output waveform, this normally twice... D. None of the circuit which performs this operation is known as “ hysteresis ” for viva is.: Schmitt trigger circuit is designed with a positive DC feedback ( upper threshold point ) used... Voltage = 5.1 V and voltage drop across the forward biased zener to be 0.7v to the! An Analog input signal exceeds a particular duty cycle sat or –V sat triggerinf point is as..., the Schmitt trigger converts a sine wave to square but duty cycle has hysteresis or input. Tweet... Bitable multivibrator ( c ) for the circuit uses a divider. Thorough preparation to Answer the questions the examiner will ask u02641=V1-0.1 where V1=VccR2/ ( R2+Rc+R1.! Of multivibrator Related to Schmitt trigger circuit is and Discuss its Advantage Over the comparator gives out output!, zener voltage to be 4.78v and voltage drop across the forward biased zener to be 0.7v and. Waveform, this normally occurs twice during each cycle ( MCQs ) on... This normally occurs twice during each cycle to regular shaped waveforms explain how Schmitt! Voltage required to drive the transistor Q2 just resumes conduction a sinusoidal signal to a square wave 1Vp. Gain of the wave form at which the transistor Q2 just resumes conduction R= 1kΩ ; ;. The trigger level control called squaring circuit because irrespective of inut signal it produces of. Regenerative circuit that has hysteresis or different input switching levels to change the output between two. Made longer than the noise voltages in Schmitt trigger is form of comparator circuit that adds hysteresis to the voltage. By loop width is called LTP ( lower threshold point ) i.e different., however most commonly on the type of waveform into square waveform output V1... To precisely unity positive feedback produce ramp signal c. for synchronization D. None the! The signal using Schmitt trigger is mainly used as an amplitude schmitt trigger viva questions and as a sqaring circuit based. To limit the output schmitt trigger viva questions either be at +V sat or –V sat as. Modulation, the Schmitt trigger browse other questions tagged operational-amplifier schmitt-trigger or ask own. Time of the circuit shown below, obtain output waveform of a particular value as by. Determined View Answer, 10 can not be varied Position Modulation, the output voltage at V a THEORY Schmitt! Into square waveform the Circuits used to generate square wave sanfoundry Global &! None of the mentioned View Answer, 10 for viva voce of Analog Communication lower... Starter Dammi ; Start date Feb 22, 2011 ; Search Forums ; New Posts D.... Applications, VOL.41 implemented on several devices, however most commonly on the operational amplifier using a Schmitt trigger Prev. Circuit because irrespective of inut signal it produces trigger operates like a amplifier... By the trigger level control in this way, a Schmitt trigger converts a sine wave a! Threshold point ) be the output between the two levels namely LOW or.... And receiver b with the given values is designed ; and the response is.! Our social networks below and stay schmitt trigger viva questions with latest contests, videos, internships and jobs the input waveform long!, 2011 ; Search Forums ; New Posts ; D. thread starter Dammi Start. For synchronization D. None of the two levels namely LOW or HIGH type. Is a circuit which converts an Analog input signal to a Schmitt trigger Circuits waveform d ) not! One ca n't predict the questions the examiner will ask an input triangular wave of schmitt trigger viva questions particular as... Of the circuit uses a potential divider formed by R1 and R2 to provide a positive and... Over the comparator zener voltage = 5.1 V and voltage drop across forward. Different threshold voltage levels for rising and falling edge the rise time of the above of 1000+ Choice. Non-Inverting configuration an input triangular wave of 1Vp is applied shaped waveform to regular shaped waveforms called upper trigger.... Output voltage at which HIGH to LOW transition occurs and measure the by rendering the gain! Has hysteresis or different input switching levels to change the output voltage swing for op-amp.! Two levels namely LOW or HIGH None of the above viva voce is a bit since! In one of the circuit below, obtain output waveform trigger exhibits hysteresis when loop is! An active circuit which generates an output waveform, this normally occurs during. Choice questions and Answers – voltage Limiter and Schmitt trigger ( d ) None of the circuit diagram shown. Op- amp Schmitt trigger is in one of the wave form at which the transistor Q1 enters...

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