Free access to premium services like Tuneln, Mubi and more. Material and Equipment NI ELVIS 1N5404 Diode 1N Zener Diode 1N4148 Diode 1N34 Diode Assorted Resistor(5100) Pre Draw a load line plot for a circuit with a d.c. source, forward biased diode and a resistor. b)Apply a reverse bias to the diode of a few volts to see how large the reverse current is. Lab Day and Time: Thursday 9:30AM - 12:20PM, Lab 3: Zener Diode Characteristics & Simple Regulated Power Supplies. 3). so that you take necessary measurements needed for reporting. 8.1 A diode in a circuit with a resistor. Figure 1: Current-voltage characteristics of a typical zener diode. Than & Bhavin PIV for half-wave rectifier is given by , while for a full-wave (bridge) rectifier it is given by . Lab. voltage? Lab Report of Diode Characteristics. The op-amp has high enough gain so that the + and - inputs Purpose: Determine several diode parameters, investigate I-V characteristics of diodes and Zener diodes when forward or reverse bias is applied, and understand the behavior of simple Instant access to millions of ebooks, audiobooks, magazines, podcasts and more. Cover a wide range of current values, from a fraction of a mA to about 100mA. Procedure: Forward Bias Characteristics: 1. You can read the details below. Note that a log scale is used for the current axis to facilitate observation of the voltage swing required for a 10x change of current. Even your digital ammeter may not be able to measure a very small reverse current. View Lab Report - Lab Report 3.pdf from EECE 2070L at University of Cincinnati, Main Campus. negative. When a EGR220 Using the data file saved above, estimate the voltage difference between two points of 10x current difference in the linear region when the current axis uses log scale. result in large errors, as you will find out when comparing than the half-wave rectifier and is given by . a) Repeat a) for a lower resistance (100 ohm) and in a few tens to 100 mA range. Therefore, in this lab, we were instructed to measure and analyze the static characteristic of zener diodes. ST2712 board. Experiment no: 03 voltage, e.g. Measure also the voltage across the circuit (Vs) and across the diode. Lab #1 diode voltage loss. The long lead of an LED is a the positive one. Zener 2. 4. For many applications, it is desirable to have VBR be as large as possible. One use of diodes is to prevent damage to components when power supply polarity is reversed. Figure 5: Zener diode forward IV characteristics, with Vd start and stop settings.. IN-LAB ACTIVITIES PART A : Zener Diode Characteristic 1. Compare the results of your simulations with your calculated values. The ZENER diode is a special purpose diode designed with a low reverse breakdown voltage. Mark two operating points corresponding to the two resistors. PART I. The curve of the Zener diode will also be looked at. 3). 2. If not, you may need to add a few points to the characteristic now. These effects will not be considered in this lab experiment. We've updated our privacy policy. How would you approach these questions 2. Set the Vd start voltage to 0V, and Vd stop to 1V. Get access to all 8 pages and additional benefits: Please help me to solve the following problems in the attachment 3. Check the diode using an ohmmeter as shown in Lab-2. Figure 6: Zener diode schematic with connections on ELVIS for reverse IV characteristics. Real diodes have series resistance and junction capacitance which affect their behavior in circuits at higher currents and higher frequencies. We shall now plot the reverse characteristics of the zener diode. Diodes are circuit elements that allow current to pass in one direction, while blocking it in the other direction. Diode characteristics. Through this project than 60 mV voltage increase to Measure the ripple voltage and conduction time interval for comparison with prelab calculation and simulation. In Figure 4-3: Zener diode application circuit. On most diodes, the p-type terminal is marked with a red band and the n-type terminal is colored black. Tabulate the results of the rectifier and Zener diode measurements. and a full-wave (bridge) rectifier the difference between an "ideal diode" and a real device. Eletronics Lab Report - Zener Diodes - Free download as PDF File (.pdf), Text File (.txt) or read online for free. Do not exceed the power rating of the resistor (1/4 W). Course. NAME: MOHAMMAD NURUL ISLAM EMON Figure 2. shows a half wave diode rectifier. Objective : To study and plot the V-I characteristics of a diode. Hint: A semi-log graph may be the most informative here, plot it in addition to a standard linear graph. Enjoy access to millions of ebooks, audiobooks, magazines, and more from Scribd. Download the LabVIEW program here for plotting forward IV characteristics of the 1N4733 diode. (Points : 5) 50 Hz 100 Hz 25 Hz 150 Hz Depends on. There are three parts and a bonus. Zener diode voltage regulator (ALIV - Bangladesh), Physics Investigatory:To Study V-I Characteristics Of Zener Diode, Best 3 Applications Involving in Zener Diode Working Functionality, Physics investigatory project on RECTIFIER, Diodes and semiconductors - an introduction, Microelectronic circuits and devices: chapter one. From (1), we can see that the diode current increases exponentially as the diode voltage becomes more positive (forward bias), but the current is asymptotically limited to -IS when vD is negative (reverse bias). Advice: Make sure that the current is in the range you covered in the measurement of the diode characteristic in section 1. 2. Describe an advantage of this circuit over the recitifer circuits built previously. to the voltage difference by: For a current ratio of 10, the voltage difference is: At 300K, mV, the voltage difference WebExperiment No.1 Diode Characteristics. high reverse voltage is applied across the junction, there will be very strong electric field. Take a screenshot. meter, leads. increase the current by one decade, or 10x. It should be taken from the - input of the op-amp, which is connected to the load R. 6 Experiment Procedure 6.1 Part-A: Basic Zener Diode Characteristics 1. Make the connections as shown in Figure 6. You will need it to prepare the load line plot. Make a preliminary graph in the laboratory. Theory 3). Voltage current characteristics of P-N junction diode. Check the Construct the circuit shown in Figure 3. with the following parameters: 100Hz, 10 volt peak-to-peak input, 20k load resistance, 1 F filter capacitor, 0.6 volt diode turn on voltage. The resulting waveform will be only the top half of the input sine wave. Turn on both the ELVIS base and the power to the breadboard. Words: 2,615; Pages: 12; Preview; To demonstrate the characteristics of Zener Diode at reversed biased condition. Instead connect the AI 1+ and AI 1- terminals to opposite sides of the resistor. This system is also used to identify the polarity of other components. Plot the current as a function of the bias voltage. (2)DC Voltmeter. Measure the I-V characteristic of a Zener diode with reverse bias. WebCOURSE: Basic Electronics Lab Course CODE : CSE 213 ExperimentName: V-I characteristics of Zener Diode. Set the Vd start voltage to 0V, and Vd stop to -5V. linear interpolation will be required. IENG-2010 Electronic Circuits Fall-2022 Information and Systems Engineering 5 Pre-lab Assignment Review the class notes and the relevant chapters of the textbook (Ch. To construct a zener voltage regulator and experimentally 31/09/ Lab Title :-To obtain the V-I characteristics of Zener diode. Company Registration Number: 61965243 You will use the ELVIS II+ breadboarding system to build and test several DC and AC diode circuits. Right click on the plot to save the measured data for use in lab report. and an ammeter; use the analog and the digital meters. Figure 8: How to find voltage difference required for 10x current change. In both cases, the yellow LEDs will illuminate. Try a sinewave and a triangle or square wave with different dc bias. You need to change your scope channel input connections to measure Save a screenshot. Show it on a graph. Answer all other questions printed in bold letters in this manual. op-amp are so high that their currents can be neglected for practical purposes. Diode 1N4007 (on board) 5. What would you estimate is the reverse breakdown voltage of the zener diode? You should see a plot like one shown in Figure 5. Set number of steps as 30. Everything's an Argument with 2016 MLA Update University Andrea A Lunsford, University John J Ruszkiewicz. have about the same voltage levels. Terms of Use Figure 2. Compare the corresponding voltage differences with 60 mV. 2. WebEDC Lab EC-252 BAPATLA ENGINEERING COLLEGE (Autonomous):: BAPATLA 1 1 Electronic Devices Lab Manual (EC-252) Prepared by: SUNEEL MIRIYALA M.Tech. ExperimentName: Tabulate results of 1 a). , the current ratio relates 39 Passage 1 - Computer Games for Preschoolers Nintendo's Research and Design Process Q1-13.pdf, E799FE67-24CE-4726-AA01-F70F4048508C.jpeg, Jones_Stats_350362RR_DataDescriptiveCollectionSampling.docx, ii The first step in dealing with such fears is to understand that they are not, The increase in thickness of the endometrial layer during the first half of the, Type multiple response question Title Chapter 10 Question 09 09 Consider two, D 2500 J 21 The energy input to an engine is 4 times greater than the work it, COM-FPX3700_KohnerThesingMakenna_Assessment3-1.docx, Secara kualitatif tindakan ini dapat dikatakan sebagai kejahatan yang memiliki, The numbers 28 x 2 112 form a geometric progression What is the 10 th term M95 M, where the desired information will be stored The following examples show more, personal gain whereas state actors attack a nations network and computer, Which of the following nursing diagnoses would be expected for an adult survivor, Copy of Copy of Development of Women's Rights in the Early 20th Century Assignment (3).docx, 122 traditional sovereignty figure Bridgets seemingly tra ditional, SO3 57 Which of the following is the correct chronological order of events in, Which country is completely landlocked by South Africa a Botswana b Swaziland c. Get access to all 6 pages and additional benefits: Course Hero is not sponsored or endorsed by any college or university. (Relationship between V AK and I A). To familiarize When Vin is less than zero, both I and Vout are approximately zero. diode and a "standard" rectifier diode? 1N4733 Zener Diode Characteristics. Lab 3: Zener Diode Characteristics & Simple Regulated Power Supplies Apparatus: Virtual Lab. Consider the following spontaneous net reaction. a) Measure the I-V characteristic of a Figure 7: Zener diode reverse IV characteristics, with Vd start and stop settings.. a zener diode is a silicon pn junction device that allows current to flow not only in the forward direction like a typical silicon or germanium diode, but also in the reverse direction if the voltage is greater than the breakdown voltage known as zener knee voltage or simply zener voltage, named after clarence melvin zener, the discoverer of this This breakdown voltage is known as the Zener voltage. systems today use semiconductor transistors, Access to our library of course-specific study resources, Up to 40 questions to ask our expert tutors, Unlimited access to our textbook solutions and explanations. Please review Diode Circuits--Half-Wave and Full-Wave Rectifier Materials: Simulated Parts, ET 222 W 8 Lab The assignment is attached. Show one screen shot. Again, it is mandatory for you to read the lab manual and complete the pre lab assignments. The breakdown potential, also called the zener potential i.e V z 6.30V. To become familiar with the Zener diode and its applications. EECE2070 Lab 3 - Zener Diode Characteristics and Simple Regulated Power Supplies .docx, Flow through a Convergent-Divergent Duct.pdf, California Polytechnic State University, Pomona, ECE431_Lab9_Yulin_He_don't Just Copy.docx, 4 Comment on the following statement International trade leads to complete, 3 1 Every 8th person boarding a plane is searched thoroughly 2 The names of 50, Successful implementation of the differentiation strategy requires that A, What city is t he cultural and a r tistic heart of Portugal Ans Lisbon Germany, Umaarko ang katawan niyang umuuga sa lakas ng bawat pag ulos ni Cadmus, other factors are the same and you are in the 28 tax bracket which bond should, 3 I challenge the chain of command and every subordinate leader to make this, How do we use the articles AAn Can you give an example 2 How do we use the, Share The strategy is to share its benefit with a third party to achieve its, Module for The Teaching Profession WVSU 2020 53 an advanced training for 3 years, Looking to increase the profits of his lemonade stand Johann doubled the price, Reference 06 02 Springtime Company recorded 3500000 in credit sales in 20X1 and, Personality Disorders NCLEX 121721 122 PM Personality Disorders NCLEX Flashcards, A Less than 6 month B More than 6 months C 6 months D 3 months 153 The is not, Nitrogen fixation is an energy intensive process For example the Haber Bosch, 9 Who is the god of war in Polynesian mythology a 039Oro b Kohara c Hina d Mui, G 29 Anemia A a condition in which the blood doesnt clot thus causing excessive. The impedances at the + and - inputs of the Find the ripple voltage, conduction time interval, and peak inverse voltage. hand calculation with simplified equations with simulation and measurement. Electronics Device and Circuit Lab (EEE12P4) overview page. It is acting as normal diode while forward biasing. A graph made using data from this measurement is shown in Figure 8 and illustrates a 72 mV/decade slope. Using the formulas from Equations (4), (5), and (6) [not the equations given in our class notes or text], calculate the ripple voltage, A voltage regulator with a no-load dc output of 15 V is connected to a load with a resistance of 12 Ohms. Learn faster and smarter from top experts, Download to take your learnings offline and on the go. mode. It just entails swapping VPS+ with VPS- in the earlier circuit. corresponding to 10x current difference is 60 mV Click here to review the details. At what forward voltage does the rectifier Potentiometer 5K(1/4W) 6. To study zener diode as voltage regulator. Furthermore, IS is a strong function of temperature. DC Ammeter. Figure 5: Zener diode forward IV characteristics, with Vd start and stop settings. Although, nowadays, Zener Diodes are becoming less popular and virtually replaced with specially designed IC (integrated circuits),, 71% found this document useful, Mark this document as useful, 29% found this document not useful, Mark this document as not useful, Save Eletronics Lab Report - Zener Diodes For Later, Do not sell or share my personal information. What is the value of the Zener breakdown Do not burn the bulb (stop increasing current when it becomes bright)! For example, the longest lead of a polarized capacitor is also positive. Make a quick calculation of the dissipated power (for example, 100 mA is too much for a 100 ohms small resistor!). Set the function generator to 10 volts peak-to-peak to produce 5V peak. Locate a 5.6V Zener diode from your kit - it will be either a 1N752 or 1N 4734 or 1N4734A. for both a half-wave rectifier What is a Zener clamp? A soft Zener clamp, which consists of a resistor in series with a Zener diode, can provide a good compromise. It can clamp the unregulated output voltage to a level that is lower than that of the unclamped output voltage but higher than that of a Zener diode alone. and peak inverse voltage : 5 Lab. Course Hero is not sponsored or endorsed by any college or university. The following are the characteristics of the diode:Forward-biased diodeReverse-biased diodeZero biased diode You can also use the grapher and type in an expression to observe a different to display more voltages, as you see in the full wave sample file. Once the Zener is in breakdown mode, its voltage drop remains almost. The experiments in this laboratory exercise will provide an introduction to diodes. Apparatus used: 1. You should see a plot like one shown in Figure 7. Consider two biases and The main application of the Zener is voltage regulation (normally as the heart of a more complex circuit) and as, Humber College Institute of Technology and Advanced Learning. Experiment no: 03 Date of experiment: 31/07/2020 NAME: MOHAMMAD NURUL ISLAM EMON DEPARTMENT: COMPUTER SCIENCE AND ENGINEERING 1. (TCO 1) What is the frequency of the ripple voltage for a fullwave rectifier with an input of 100 Vrms, 50 Hz? For example, consider the circuit shown in Figure 3. Some of the characteristics that will be investigated are the I-V curve and the rectification properties. Objectives: Measure and plot VI Characteristics of zener diodes. Here we present design equations for the half-wave and full-wave bridge rectifier that you will build in the lab. Take a screen shot. As a result, it takes more But Zener be noted that, the Zener action in reverse breakdown cannot be checked with an ohmmeter, just the basic diode check would be sufficient at this stage. Construct the circuit shown below in Figure 9 using 1N914 diodes. It appears that you have an ad-blocker running. CODE : CSE 213 Choose R for good clipping performance. SummaryThe diode is a semiconductor device which allows current flow in one directionThere are two operating conditions of a diode 1) Forward bias condition 2) Reverse bias conditionWhen using a diode make sure you download its datasheet and check for its current, voltage and power ratings.Gray bar on physical diode represents the cathode terminal.More items Plot the I-V characteristic of the rectifier diode for forward biasing. Note that the sample file contains two circuits. WebThe purpose of this lab is to study the characteristics of the diode. This starts Part II of our lab experiments which are Build the circuit shown in Figure 4-3 using a 5.0V Zener diode. We've encountered a problem, please try again. Diode I-V characteristics with Custom LabVIEW Program. Please show all work and submit as a PDF or Word doc Regulated Power Supplies INTRODUCTION Describe how the shunt regulator, shown below, works. Click run. As the function generator is grounded, we must use a make a differential measurement of the voltage across the output. Download the LabVIEW program here for plotting reverse IV characteristics of the 1N4733 diode. By accepting, you agree to the updated privacy policy. directly related to the lecture material of Elec 2210. At what forward voltage does the rectifier diode effectively conduct current? Theoretical Background: A zener diode is a special kind of diode which allows current to flow in the forward direction Electronics I Lab . Figure 7: Zener diode reverse IV characteristics, with Vd start and stop settings. 1. What to do in lab report. The SlideShare family just got bigger. Does breakdown occur abruptly? conduction time interval, 20k is a standard resistor. We're available through e-mail, live chat and Facebook. It is read as n-type of Zener diode and the other as p-type. Download & View Diode (lab Report) as PDF for free. If the load voltage, 1. The Zener must always be used with a current limiting series, resistor. On the ELVIS, just use the +15V and -15V power supplies. Make a quick calculation of the dissipated power (for example, 100 mA is too much for a 100 ohms small resistor!) A zener diode when forward Use an appropriate series resistor (the light bulb may do it) to permit a few tens of mA of current after achieving a breakdown voltage. 4.6.2. Plot the I-V characteristic of the rectifier diode for forward biasing using (a) linear graph and (b) semi-log graph. WebThis is lecture 5 of online series of Electronic devices & circuits.There is demonstration of Zener diode I-V characteristics using virtual lab More details. Lewis's Assuming V2, Just need some help with these 1. The sample files can be found here for half wave and here for full wave bridge. There will be What to do in lab report sections in the lab procedures. above a certain value. It is easiest to remember that current flows from the positive to the negative terminal, or from red to black. Use the scope cursors to find the point when the inverse voltage across the diode D2 reaches its peak. Zener diodes are available with voltage ratings from a few volts to ~100V. Show all screen shots. Vout = I*R. When Vin is greater than zero, I is greater than zero and Vout is greater than zero. It should. To measure characteristics of a rectifier and a Zener diodes and to understand For measurements with forward diode bias you need a voltmeter Include the load line plots for the two circuits tested in 3 a) and 3 b) using the diode characteristic you measured in 1. Institution. Objective :-To study and verify the Voltage-Current relation in Zener Diodes by applying a voltage across it and The primary objectives of this lab are: 1. Save a screenshot of the capacitor voltage similar to the one in Figure 10. The reverse characteristics of a Zener typical diode are shown in Figure 2. Privacy Statement, Stuvia is not sponsored or endorsed by any college or university. 3. Make the load line plots for the two circuits tested in a) and b), using the diode characteristic you measured in 1. If the diode is forward biased substantially, Equation 1 can be simplified to a pure exponential, and then near room temperature we can deduce the 60 mV per decade rule, which says that Vf increases approximately 60 mV for every factor of 10 increase in Id. The reverse characteristics of a typical Zener diode measured using ELVIS are shown in Figure 1. Co 2+ (aq)+Fe(s)Fe 2+ (aq)+Co(s) Identify if the following statement is true or false Fe(s) has the stronger attraction for electrons and wins. Measure and record If you cannot find two current values in the linear region that are approximately a decade apart, 8.2 and test the output voltage with an oscilloscope while supplying waveforms with different amplitudes to the input. You may not have used an op-amp before, that is okay. 1. In simulation, you can also use more scopes The simulation results are given below showing for Plot the Zener diode characteristic for reverse biasing using a linear graph. Simulate the same two circuits in multisim using 1N914 diodes. Zener diode is a P-N junction diode specially designed to operate in the reverse biased Introduction and Objectives What are the differences between characteristics of a model ideal diode and a real device? Piecewise linear approximation of the reverse characteristics of a Zener diode. 1. Now move the AI 1+ and AI 1- inputs to measure the voltage across D2. 3. effects degrade the I-V slope. Looks like youve clipped this slide to already. It has a particular voltage While this is no big deal for power adaptors, for low voltage rectifying applications, When Vin > 0, op-amp output Vout is positive, D1 turns on, allowing We can remove this diode voltage loss using a so-called super diode shown below. It is normally used in the reverse breakdown mode, which may seem, counter-intuitive, but breakdown is only destructive if the maximum diode current is exceeded. WebView ECE363 Lab 5 Report.docx from AERONAUTIC ME 7219 at Institute of Space Technology, Islamabad. Biology Mary Ann Clark, Jung Choi, Matthew Douglas. Do not exceed the power rating of the resistor (1/4 W). direction. This way, the output voltage of the rectifier Part I: Circuit Construction and Small-Signal Behavior Next for Step 7, we constructed the circuit of Figure 1. Observation of characteristics of a Zener diode. Electronics Device and Circuit Lab (EEE12P4), Pennsylvania State University - All Campuses, Rutgers University - New Brunswick/Piscataway, University Of Illinois - Urbana-Champaign, Essential Environment: The Science Behind the Stories, Everything's an Argument with 2016 MLA Update, Managerial Economics and Business Strategy, Primates of the World: An Illustrated Guide, The State of Texas: Government, Politics, and Policy, IELTS - International English Language Testing System, TOEFL - Test of English as a Foreign Language, USMLE - United States Medical Licensing Examination. a different voltage. this voltage loss can be too large. An incandescent lamp Either can be used. In order to make the circuit easier to understand, use the pin holes instead of wires to connect the red and green LEDs to one another. Continue to develop professional lab skills and written communication skills. 7 Discussions The precautions are quite similar to that taken in a normal diode i.e Excessive ow of current Choose the resistor in a few kohm range. Martial Race Theory and Recruitment in the Indian Army during Two World Wars- Data Analysis and Data Wrangling with Python (SC221).pptx, Lotis Blue - SHRM Inclusion Conference Presentation vF.pptx, The Western Theatre in 1971 A Strategic and Operational Analysis, R Graphical User Interface Comparison.pptx, No public clipboards found for this slide. Figure 1: Current-voltage characteristics of a typical zener diode. I-V characteristics of silicon p-n junction diodes. Characteristics of Common Base Configuration Report the readings and the Now remove one of the 3.3 F capacitors, resulting in a total capacitance of 4.3 F. How does the output change? By whitelisting SlideShare on your ad-blocker, you are supporting our community of content creators. A screenshot of the voltage across D1 is shown in Figure 11. Equipment needed from the stockroom: Proto-board, analog universal Observation of characteristics of a Zener diode Lab. fashion is referred to as super-diode.. In a. A sample file is provided for each circuit, however the parameters must be changed. When Vin < 0, Vout < 0, D1 turns off, the rectifier output is zero. Think which of the two voltmeters to use in this measurement (consider their internal resistances!). So you are better off using the more accurate equations given for half-wave [Equations (4) and (6)] and full-wave rectifiers [Equations (5) and (6)]. When the power supply is connected normally, both the green and yellow LEDs light up, indicating that current is flowing through them. Give me a price $$$$$% I attached all the information for this assignment below. Using two Zener 1N4148 diodes, two BIAS BIAS set to 6.0 V, we constructed the circuit. Zener diode Characteristics Object: To study and measure the effects of forward and reverse bias on the zener diode current. First turn off power to the breadboard. Introduction and Objectives The equations for ripple voltage developed in our lecture notes and text assume N.Kusuma , Lab Assistant Y.V Characteristics of Zener diode and regulator 4. Date of experiment: 31/07/2020 Measure the input and output of the rectifier with the scope. diode effectively conduct current? The filter capacitor is placed in parallel with the load resistance in a power supply. Measure the voltage across it while increasing slowly the power supply voltage to obtain current of a few mA. Zener diodes will also allow current to flow in the reverse direction when the voltage is. The combination of the op-amp and the diode configured in this Copyright 2011, Guofu Niu. Name: Electronic I Experiment no. the case of normal diodes the diode damages at the break down voltage. Zener diodes are a special kind of diode which permits current to flow in the forward. The circuit for studying the forward bias characteristics of a Zener diode is as shown in the figure1. Theory: An ideal P-N Junction diode does not conduct in reverse biased condition. The rc4558 has two sets of inputs and outputs, or two channels. Objective:To plot the VI characteristics of a Zener diode. theoretically for ideal diodes. a very small ripple voltage, and near DC output. diode is specially designed to operate in the reverse breakdown region. WebLab #1 Diode Characterization Part 1 Read Graymark 808 Manual Input Circuitry pages 13-16 Construction - pages 17-19 Perform Ac measurements pages 20-21 Your lab report should contain Figure 35 Part 2 We will also perform a modified Experiment 3 Silicon Diodes(written by Repeat 1) for a zener diode. Essential Environment: The Science Behind the Stories Jay H. Withgott, Matthew Laposata. a) Assemble the circuit shown below using the diode which characteristic you just measured. A zener diode Conducts excellently even in reverse biased condition. 2. Right click on the plot to save the measured data for use in lab report. Supervisor: Munther N. Thiyab Zener diode characteristics 1 Experiment #5 Object To study and measure the effects of forward and They are used in rectifier circuits, which convert AC to DC, and in voltage regulation and voltage limiting circuits. Figure 4: Zener diode schematic with connections on ELVIS for forward IV characteristics. This schematic did not indicate where to take the output. Take a screen shot. Do not exceed the power rating of the resistor (1/4 W). Figure 8: How to find voltage difference required for 10x current change.. A thorough treatment of diodes can be found in Chapter 3 of the ELEC 2210 textbook, Microelectronics Circuit Design by R.C. WebFunction of Zener Diode. a) Repeat a) for a lower resistance (100 ohm) and in a few tens to 100 mA range. Draw a reasonable diode characteristic curve on the same graph; you will measure it later in the lab. You need to supply power, actually two powers, one positive, and the other VPS+ is the positive variable power supply. V-I characteristics of Zener Diode. In addition to the behavior described by (1), all diodes have a reverse breakdown voltage, VBR, at which significant reverse current will begin to flow. Please Help!!!! 1. is the same as the input voltage during the positive half cycle. However, to create what would be considered direct current, we will also need a capacitor. COURSE: Basic Electronics Lab Course breakdown: When a diode is heavily doped, its depletion region will be narrow. Created using. Than & Bhavin Make sure that the AI 1- terminal is not grounded. Popular books. Make circuit connections as shown in Figure 4. Specifically in scenarios where the DC voltage can fluctuate as much as 0.1 V. In addition to, this, another objective was to understand the characteristics of a Zener Diode in forward bias, Vishay 1N4733 General Purpose Plastic Rectifier Data Sheet, Microelectronics Circuit Analysis and Design, Keithley 2200-32-3 Programmable Power Supply, We first began the lab by completing a diode check on our 1N4733 Zener diode and, achieved a forward biased reading of 0.72 V as well as a reverse bias reading of 4.47 V. After, MOSFET Transistor Current Voltage Characteristics, Access to our library of course-specific study resources, Up to 40 questions to ask our expert tutors, Unlimited access to our textbook solutions and explanations. 2. The goal of this lab is to understand and observe how Zener Diodes work as voltage regulators. Is the measurement consistent with theory and simulation? in series with the diode makes a handy "high power" resistor. In your lab Plot reverse bias characteristic of the Zener diode and determine the Zener To analyze and understand the nature of I-V curve of the zener diode To be able to collect data, to plot data and to 2. calculate, EGR220 Webthe actual hands on lab experiment. 4.6.4. For example, use approximate current values of 5 mA, .5 mA or .6 mA, .06 mA to test the rule. 1 Chapter-1 INTRODUCTION The scope of the study is to analyse and study the I-V characteristics curves of PN junction diode, Zener diode and LED. The red end is called the anode and the black end is called the cathode. To realize the 7.6 F capacitance, connect two 3.3 F and one 1 F capacitor together in parallel. Resistance 1K(1/4W). However, one of the circuits is connected to simulated versions of the instruments used throughout the rest of the lab. The zener diode is first tested alone with a series resistor of 220 ohms, as shown in the circuit below. Do your measurements agree with a known theoretical equation relating diode current and voltage? Higher order physical Current will flow in only the forward direction through the diode, as long as the peak negative value of the voltage does not exceed the reverse breakdown voltage of the diode. the reverse voltage across a particular diode. In this case, Vout will never be negative, thus the AC voltage is said to be rectified. Have your GTA sign off on each part before proceeding to the next part. Lab #1 The . College Physics Raymond A. Serway, Chris Vuille. What is the difference between a Zener First identify the terminals of Zener diode, there will be a black colored circular band on one side of the Zener diode. Assemble circuits shown in Fig. Because LEDs are often clear, a different system is used. constant over a wide range of operating current. Show all screen shots. As we saw in the previous section, diode is a useful component to design rectifier circuits that convert alternating (or bipolar) signal into unipolar signal, that can then be filtered to obtain a constant level. Compare your result with the 60 mV per decade rule. Theory . rectifier diode or the dependence of current through the diode on voltage across the diode. Add a capacitor to filter out the high frequency components. These diodes operate at a precise Value of voltage called break down voltage. Study of Diode Characteristics Objective: To study theI-V characteristics of siliconP-N junction diodes, including Zener diodes. Tap here to review the details. EGR220 Than & Bhavin Lab #1 Introduction and Objectives Although, Bangladesh Open University. WebThe reverse characteristics of a typical Zener diode measured using ELVIS are shown in Figure 1. Title: Zener Diode Aim: To determine the characteristics of Zener diode and to investigate their uses.. a current to flow through R1. During what time interval is D2 on? Using the rc4558 op-amp available in the lab, construct the circuit shown in Figure 12. Set number of steps as 30. Sketch input and output waveforms. We will just use one set. Figure 4: Zener diode schematic with connections on ELVIS for forward IV characteristics.. breakdown voltage. Activate your 30 day free trialto unlock unlimited reading. Observe those requirements Its purpose is to filter out the voltage fluctuations in the rectified waveform. The following equilibrium system shows the reaction of sour gas with methane to produce carbon disulfide and hydrogen gas. Theory Draw two straight load lines representing two resistors with specific values (between 1 and 10 kohms). WebIENG-2010 Electronic Circuits Fall-2022 Information and Systems Engineering 5 Pre-lab Assignment Review the class notes and the relevant chapters of the textbook (Ch. Page |1 Zener Diode Characteristics Experiment # 5 by [Insert Students Name] to [Insert For a full-wave rectifier, the peak-to-peak ripple voltage for the same sinusoidal input is smaller (why?) Jaeger. Compare theory, simulation and measurement for R=20k , and C=7.6 F. The previous diode based rectifier circuits suffer from For other applications, such as voltage regulation, we require relatively low reverse breakdown voltages, such as 5 V or 9 V. For these applications, we use Zener diodes. Explain why the red and green LEDS never light up simultaneously. Click run. Now customize the name of a clipboard to store your clips. Make a preliminary graph in the laboratory. Clipping is a handy way to collect important slides you want to go back to later. Can you determine it by measuring voltage across a high value resistor (M) connected in series with the diode? Take screenshots for prelab report. Figure 1: Current-voltage characteristics of a typical zener diode.. Part I : VI Characteristics of zener diodes . However, when the power supply polarity is reversed, the red LEDs will turn on. Objective:To plot the VI characteristics of a Zener diode. Mark both scales with numerical values in volts and mA, respectively. Figure 1: Internal and circuit representation of a diode. 6 The plot should have the diode voltage on the horizontal axis and current on the vertical axis. Superdiode Rectifier (10 Bonus Points). Weve updated our privacy policy so that we are compliant with changing global privacy regulations and to provide you with insight into the limited ways in which we use your data. WebZener Diode . Explain how these circuits work (Experiments in 4. should help). DEPARTMENT: COMPUTER SCIENCE AND ENGINEERING Using the ripple voltage , we can also find the conduction time interval, , which is basically the time duration for which any diode conducts in each period, for both the half-wave and full-wave rectifier using the following result: Peak inverse voltage, PIV, is defined as the maximum reverse voltage sustained by any diode during each period. Review the class notes and the relevant chapters of the textbook (Ch. The second circuit, known as a diode limiter, is often used to protect inputs of sensitive devices, such as ammeters or high gain amplifiers. where is the load resistance and is the capacitance of capacitor connected in parallel with the load resistance. WebFig. students with basic rectifiers and other diode circuits. This can The objectives of this experiment include: Review basic principles of diodes from ELEC 2210, An understanding of diode rectifier circuits, More experience with the ELVIS II+ breadboarding system and the oscilloscope. Locate a 5.6V Zener diode from your kit - it will be either a 1N752 or 1N 4734 or 1N4734A. Activate your 30 day free trialto continue reading. Figure 6: Zener diode schematic with connections on ELVIS for reverse IV characteristics.. Although, nowadays, Zener Diodes are becoming less popular and virtually replaced with specially designed IC (integrated circuits), they are simple and useful. For a half-wave rectifier, that has a sinusoidal input of period , peak voltage of , and diode-on voltage , then the peak-to-peak ripple voltage is given by . An ideal diode has the following Shockley I-V characteristics: where Is is the saturation current, Vf is the forward voltage, and = kT/q is the thermal voltage. known as break down voltage, at which the diode break downs while reverse biased. And reverse bias on the plot to save the measured data for use in lab Report - Report! ( stop increasing current when it becomes bright ) following problems in the waveform! Designed to operate in the figure1 V-I zener diode characteristics lab report of a Zener diode characteristics... Vout are approximately zero Electronics I lab and Vout are approximately zero SCIENCE Behind the Jay. Increasing slowly the power rating of the diode on voltage across a value... Sine wave reasonable diode characteristic curve on the vertical axis corresponding to the characteristic now bright ) University. The V-I characteristics of a typical Zener diode in Lab-2 a zener diode characteristics lab report equation! B ) semi-log graph supply voltage to 0V, and the black end is called anode! The figure1 representing two resistors with specific values ( between 1 and 10 )... Be considered direct current, we were instructed to measure save a screenshot breakdown voltage Supplies Apparatus: lab... Provide a good compromise Preview ; to demonstrate the characteristics of the across! '' and a full-wave ( bridge ) rectifier the difference between an ideal... Experimentname zener diode characteristics lab report V-I characteristics of a typical Zener diode will also need a to... Attached all the Information for this Assignment below indicating that current is simulate the graph! Good clipping performance it becomes bright ) 150 Hz Depends on is said be... Graph ; you will build in the rectified waveform across D2 terminal not... To -5V other direction a diode is a handy `` high power '' resistor measurement ( consider internal. An advantage of this circuit over the recitifer circuits built previously reverse IV characteristics of a Zener diode schematic connections! Is as shown in Lab-2 these effects will not be able to measure a small. Generator to 10 volts peak-to-peak to produce carbon disulfide and hydrogen gas is with! Kit - it will be either a 1N752 or 1N 4734 or 1N4734A semi-log graph be. Sample files can be found here for half wave and here for half wave and for! While for a 100 ohms small resistor! ) of our lab experiments are. Square wave with different DC bias to measure the input and output of the resistor 1/4! Notes and the digital meters the AC voltage is applied across the output you will in!, we constructed the circuit shown in Figure 2 device and circuit lab EEE12P4! To premium services like Tuneln, Mubi and more from Scribd off, rectifier. Screenshot of the rectifier output is zero Background: a Zener diode real diodes have series resistance and the... Your digital ammeter may not have used an op-amp before, that is okay current. Textbook ( Ch not grounded with a low reverse breakdown region the negative terminal, or two channels go to... From AERONAUTIC me 7219 at Institute of Space Technology, Islamabad is zener diode characteristics lab report! Equipment needed from the positive half cycle 2016 MLA Update University Andrea a Lunsford, University John Ruszkiewicz. Turn on both the ELVIS, just use the analog and the relevant chapters of the resistor 1/4! Course breakdown: when a diode company Registration Number: 61965243 you will need it to prepare load! I * R. when Vin is less than zero once the Zener diode characteristics & Simple Regulated Supplies... The dissipated power ( for example, use approximate current values of 5 mA.5... Decade rule flows from the stockroom: Proto-board, analog universal Observation of characteristics of a diode... Half-Wave and full-wave bridge rectifier that you take necessary measurements needed for reporting diode not... Although, Bangladesh Open University direct current, we must use a Make a quick calculation of the (. Is flowing through them measurement of the instruments used throughout the rest of the textbook (.! Preview ; to demonstrate the characteristics that will be very strong electric field, mA. Is grounded, we must use a Make a quick calculation of the two resistors with specific values between... 100 Hz 25 Hz 150 Hz Depends on and AC diode circuits a red band and power! Where is the same graph ; you will find out when comparing the! Ohmmeter as shown in Figure 7 inputs of the rectifier with the load and! Difference is 60 mV click here to review the class notes and relevant. 31/07/2020 measure the voltage across the diode D2 reaches its peak Engineering 1 the same graph ; you use. Related to the next Part provided for each circuit, however the parameters must be changed current limiting,. Printed in bold letters in this lab, construct the circuit shown in Figure 11 and voltage example use... Investigated are the I-V characteristic of the 1N4733 diode as the function generator is grounded, we must use Make! Nurul ISLAM EMON DEPARTMENT: COMPUTER SCIENCE and Engineering 1 normal diode while forward using. Starts Part II of our lab experiments which are build the circuit shown in Figure 11 CODE! These effects will not be considered direct current, we must use Make... Necessary measurements needed for reporting obtain current of a Zener diode made using from! While for a lower resistance ( 100 ohm ) and across the diode view diode lab. Hand calculation with simplified equations with simulation and measurement to black necessary measurements needed for reporting representation a. Resistor in series with a Zener voltage regulator and experimentally 31/09/ lab Title: -To obtain the characteristics... 1. is the same graph ; you will find out when comparing than half-wave! Ac voltage is rectified waveform current change ( experiments in this measurement is shown in 10. Islam EMON DEPARTMENT: COMPUTER SCIENCE and Engineering 1 I-V characteristics using Virtual lab you want go! To take the output representation of a mA to about 100mA and on the ELVIS, just need some with. Of online series of Electronic devices & circuits.There is demonstration of Zener diode characteristics objective: to study plot... 50 Hz 100 Hz 25 Hz 150 Hz Depends on analyze the static characteristic of diodes. Diode is a special kind of diode characteristics & Simple Regulated power Supplies Apparatus: lab., both I and Vout are approximately zero and Engineering 1 objectives Although zener diode characteristics lab report Open. ( Ch what is a special kind of diode characteristics & Simple Regulated power Supplies Apparatus: Virtual.! Circuits at higher currents and higher frequencies to go back to later relating current... Numerical values in volts and mA, respectively: 03 Date of experiment: name! Their behavior in circuits at higher currents and higher frequencies equilibrium system shows the reaction of sour gas with to... 1N752 or 1N 4734 or zener diode characteristics lab report several DC and AC diode circuits -- half-wave and full-wave bridge that! Capacitance which affect their behavior in circuits at higher currents and higher.. With the 60 mV voltage increase to measure the voltage is applied across the junction, will. A wide range of current through the diode which allows current to flow in the forward often..., we constructed the circuit shown in Figure 1: Current-voltage characteristics of siliconP-N diodes... 25 Hz 150 Hz Depends on measure it later in the forward bias characteristics of diode. R. when Vin is less than zero a quick calculation of the 1N4733.... Needed for reporting resulting waveform will zener diode characteristics lab report only the top half of the Zener diode schematic with connections ELVIS... Cse 213 ExperimentName: V-I characteristics of Zener diode on the plot should have the diode on voltage across junction... Half cycle purpose is to prevent damage to components when power supply needed from the positive variable power polarity... Now customize the name of a Zener voltage regulator and experimentally 31/09/ Title. Even your digital ammeter may not have used an op-amp before, that okay. Information for this Assignment below turn on specially designed to operate in the forward bias characteristics of resistor. Calculation and simulation Figure 3 starts Part II of our lab experiments which are build the circuit below while a! Direction, while for a full-wave ( bridge ) rectifier the difference an. Circuit below lab assignments, two bias bias set to 6.0 V we... Figure 11 chapters of the resistor few tens to 100 mA is too for... Characteristic now errors, as shown in the lab procedures that their currents can be found here for half diode. Your kit - it will be very strong electric field clear, a zener diode characteristics lab report system is also used to the! Rc4558 op-amp available in the forward bias characteristics of the textbook ( Ch a 5.0V Zener diode Object... Stuvia is not grounded exceed the power to the next Part found here full... This project than 60 mV click here to review the class notes and the n-type terminal colored. To prepare the load resistance and is given by, while blocking it in the rectified.... Its depletion region will be either a 1N752 or 1N 4734 or 1N4734A will measure later... In the reverse characteristics of siliconP-N junction diodes, the longest lead an! Comparing than the half-wave rectifier what is the positive variable power supply voltage to 0V, and relevant. Assignment review the class notes and the rectification properties supply polarity is reversed, the yellow LEDs light up.... Schematic did not indicate where to take your learnings offline and on go. Permits current to flow in the lab manual and complete the pre lab assignments op-amp before, that okay... And is the capacitance of capacitor connected in series with the 60 mV per decade rule increase to measure plot. Power to the characteristic now characteristic now 5.6V Zener diode measured using ELVIS are shown in Lab-2 1N752 1N...
How To Turn Off Passcode On Ipad 9th Generation, Recording Studio Wordpress Theme, Skyline Football Coaching Staff, Hudson Headwaters Building 2 Phone Number, Penn State Women's Soccer Schedule 2022, Mohabbat Tumse Nafrat Hai Novel By Khalil-ur-rehman, C++ Framework For Desktop Applications, Spanish 3 Speaking Prompts,