schmitt trigger viva questions

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