Circuit Theory (EE112) Uploaded by. In the first part of lab, there are tasks where we have to practically understand the characteristics of semiconductor diode. 1k resistor (x 1) 3. The primary objectives of this lab are: 1. 6 0 obj To demonstrate the characteristics and applications of the diodes in circuits is the purpose of the resistor; the properties of a rectifier diode are verified by the results. University. Chapter 6: Diode applications (Power supplies, voltage regulators & limiters) ... ALM1000 Lab Activity Diode Rectifiers. endobj 5 0 obj <> In digital or mixed-signal applications, there is a need to precisely regulate the voltage entering or exiting a circuit. Some of the characteristics that will be investigated are the I-V curve and the rectification properties. The average output voltage of the rectifier is given by The average output current is given by When the diode is reverse biased, entire transformer voltage appears across the diode. Lab Report . endobj *£¢"¨Å2Á. The diode is a device formed from a junction of n-type and p-type semiconductor material. Zener diode is a P-N junction diode specially designed to operate in the reverse biased mode. The primary objectives of this lab are: 1. endobj Introduction and Objectives <> In this experiment, we have constructed some clipper and clamper circuits, gave some input voltage and seen the output of the waveform in the oscilloscope. This application note discusses the implementation of this voltage regulator and its â¦ Set the polarity switch of the CTA to âNPN / n-channel / diode forwardâ. 1M resistor (x 1) 4. stream Therefore, in this lab, we were instructed to measure and analyze the static characteristic of diodes. Objective: Study of the Zener Diode applications. The DF06MA diode bridge is of the same family as the DF02 and DF04 diode bridges you used in a previous lab. This device can be operated by controlling the voltage applied to it. We know that a Diode allows the current flow only in one direction and hence it acts as a one-way switch. This was conducted as an introductory to Electronics laboratory and in line with some topics in lecture classes. endobj The goal for the second experiment is to be come familiar with the PN junction diode and its different applications. <>>>/BBox[ 0 0 172.42 61.274] /Matrix[ 0.41758 0 0 1.175 0 0] /Filter/FlateDecode/Length 69>> Academic year. lË You will find the relationship between the voltage and current in a diode, and study temperature effects, rectification, nonlinear phenomena, and frequency doubling. Lab Report . Rectifier Diode. The Zener diode has a unique property that offers a simple, low-cost solution to this problem. A Brief List of Applications of Diode with Details. 13 0 obj Method The circuits that were used in the Prelab are shown in the figure Figures 1 &2. The diode allows only half of the AC waveform to travel through it. Videos Tutorial . Theoretical Output Voltages Predict the expected output waveform of each circuit shown in Figures 1 through 6. Ì×å?ÜÝÚ¶Óñm[3£uUDnwNÑÔv|üâïJ°4'ØueÛ`ý ¶É 1n-1)ìÝwlÈvyéî81§Ãõ×kìJ×Fd{væP(;ØH{þ.à#5¬9RÉ\$ÐSÎ ¥n§lBR2W6XÎ°7Ò96wkâ*{Xá^;àñKÛ¬d Å|é9sÉÍ3~¹×"ÔÏô ;½¹Õ&Qm¿`O¢â©z0{Ú~¹ÔßS®=("4¡ð*8&0ä, ´ð!í^µq'Y.0a xBA­#ÂPÂÂfd'@dímáñvá0ï28®j×ã»60íJë»àß J+ gâDH(JEJSüdÆ'WøÁüýºYÂuV½ÏçFÀ×^VR The diodes are made by semiconductors such as germanium, silicon and selenium. Explain the effects of using a diode that is not ideal. endobj Note: All diodes used are 1N540 (Silicon junction diode) and 1N747 (Zener diode). Semiconductor diode Objectives This laboratory work consists of two parts. A diode is a two-terminal semiconductor device that conducts electrical current in only one direction when the potential difference between its terminals exceeds certain limit. A Zener diode is different; it is a silicon diode that the manufacturer has optimized for operation in the breakdown region. Only one per 1.4×1013 bonds is broken. In general, the cathode of a diode is marked by a solid line on the diode.The primary function of the diode is rectiï¬cation. 3. ... During the negative half-cycle of input voltage waveform, on the other hand, the diodes D3 and D4 are forward biased whereas the diodes D1 and D2 are reverse biased. You will make I-V curves for each and will see how a diode can be â¦ 10M resistor (x 1) I. Diodes Overview Diodes are mostly used in practice for emitting light (as Light Emitting Diodes, LEDs) or controlling voltages in various circuits. <> Diode characteristics & Design of Rectifier circuits. The diode must be capable to withstand this voltage. kí¢6V³ rUs©SÌ6íÊY3Oz=0 Ï¬ ? <> mean) load voltage, dc load current, dc diode current, and peak- to-peak ripple voltage. Experiment #2: Diode and Applications Experiment Date 9/14/2015 Due Date 9/28/2015 Objective: During the lab the characteristics and applications of PN junction diodes will be tested with different circuits setups. Diode is made of P and N type materials and has two terminals namely anode and cathode. 11 0 obj Based on the data sheet, what range of dc diode drop do you expect to see given the expected diode current? â ECE 09.311: Lab 2 â Electronics 1 - Diode Characteristics Adam Fifth Rowan University February 12, 2019 1 Purpose The purpose of this lab is to measure the properties of a diode, zener diode, and LED. chung chinngee. As a consequence, current flows through diodes D3 and D4. Name of the Experiment : Zener Diode applications. University. It is acting as normal diode while forward biasing. 1N4148 diode (x 1) 2. endobj In principle, Schottky diodes are rectifying as the current can only flow one way. Than & Bhavin 1. The purpose of this lab is to study the characteristics of the diode. 14 0 obj The half â wave rectifier circuit is similar to a series clipper circuit. EGR220 <> Lab IV: Silicon Diode Characteristics â Page 4 Figure 1. This lab will focus on the fabrication of a Schottky diode and the characteristics they possess. Video Tutorial . 6.1.3 Rectifier output smoothing. Analog lab 1-2 - Diode characteristics & Design of Rectifier circuits. <> (a) P-N junction (b) schematic symbol (c) diode packaging. 9. Lab Report 3: Diode Applications (Clippers and Clampers) Contents that should be delivered for every report: 1- Netlist code for each experiment showing all components, models and control statements. endstream But in the waveform and the report there are some points that I want to discuss. 8 0 obj endstream 2015/2016 Include your recorded waveforms in the lab report. endobj Many wave shapes can be produced with the proper application of these two important diode functions. Since Diodes are one of the fundamental electronic devices, which has various applications, it is important to know their characteristics and how they work. 2. LN can cause severe skin and eye "burns". LAB 4 - Diode Applications Pre-Lab Objective: This lab introduces some very typical applications of PN junction diodes such as a peak detector, a voltage doubling circuit, various clamping circuits and an (active) full-wave rectifier. Than & Bhavin The maximum voltage across the diode is Vm. Half-wave or full-wave rectification does not produce a constant-voltage DC as we have seen in the previous figures. For the prelab, estimate the dc (i.e. 9 0 obj Did the clipper circuits in step 6 of the Procedure work as expected? Set the Channel 1 attenuation knob to 0.2 V/div. partners lab.All the prelab must be done and read before the session start. Discover everything Scribd has to offer, including books and audiobooks from major publishers. Since Diodes are one of the fundamental electronic devices, which has various applications, it is important to know their characteristics and how they work. It has a particular voltage known as break down voltage, at which the diode break downs while reverse biased. Universiti Kebangsaan Malaysia. Diodes and Diode Circuits TLT-8016 Basic Analog Circuits 2005/2006 15 Figure 3.37 Thermal energy can break a bond, creating a vacancy and a free electron, both of which can move freely through the crystal. Aim: To design and simulate a Half Wave Rectifier circuit. The lead connected to the p-type material is called the anode and the lead connected to the n-type material is the cathode. In the Lab â Zener Diode Characteristic 1. Discussion: Clipping and clamping are very widely used diode applications. 12 0 obj Figure 3.3: Symbol of the diode Figure 3.4: Equivalent circuit model of the diode a) Obtain the transfer characteristic by using the model extracted in section 3.1 and R = 1KÎ©. To analyze and understand the nature of I-V curve of the diode 2. Lab #1 <> <> A diode is an electronic component which has two electrodes named as anode and cathode. 22u capacitor (x 1) 5. Since Diodes are one of the fundamental electronic devices, which has various applications, it is important to know their character…, 100% found this document useful, Mark this document as useful, 0% found this document not useful, Mark this document as not useful, Save Eletronics Lab Report - Diodes For Later. xí]TYº^ÇÙÝ÷Þy{ö½³o " 3. 16 0 obj Replace the 1N914 signal diode with the 4.7V Zener diode. The diode can become conductor went the diode are place inforward bias and also become insulator if place in reverse bias.Like the figure (a) the diode become a conductor because went diode in forwardbias the resistance in diode become lower and in figure (b) the diode becamehigher resistance because of that the current cannot through it. endobj Specifically, measure forward and reverse resistances, voltages and the current. 9 10. <> <> This lab studies diodes. waveforms in the lab report. Theorv : The diodes we have studied before do not operate in the breakdown region because this may damage them. Under what circumstances would the effects of a non-zero forward resistance and a non-zero knee voltage be most observable? UCSI University. stream PRE-LAB WORK 1. Therefore, in this lab, we were instructed to measure and analyze the static characteristic of diodes. 3. Course. This lab uses liquid nitrogen (LN), which is very cold: approximately. The diodes found many applications in electrical and electronics field such as rectifier, voltage regulators, switches, signal demodulators, signal modulators, signal mixers, and oscillators. A rectifier diode is a type of P-N junction diode, whose P-N junction area is very â¦ In the case of normal diodes the diode damages at the break down voltage.  Understanding how a diode works from an âatomisticâ and a âcircuit elementsâ point-of-view is â¦ Aim: To design and simulate a Full Wave Rectifier circuit. They can also handle high frequencies and have lower power loss which makes them ideal for many applications . To understand about the revers saturation current Is, and the ideality f, EGR220 endobj Lab #1 This was also to e xpand the studentâs knowledge and as well as his laboratory skills on the subject. Lab 7: Diode Circuits OBJECTIVES To reinforce the concepts behind diode circuit analysis Verification of diode theory and operation To understand certain diode applications, such as rectification and clipping MATERIALS Your lab parts. EEM328 Electronics Laboratory - Report2 - Diode Characteristics - Free download as Word Doc (.doc), PDF File (.pdf), Text File (.txt) or read online for free. <> 10 0 obj Course. Lab 2 KKKL2152- Diode Applications. 3- Filling all tables and answering all questions in the report. Components required: ... During the negative half cycle, the diode is reverse biased and it is equivalent to an open circuit, hence the current through the load resistance is zero. Diode nomenclature and identification of polarity. When the diode is in reverse bias and it is unable to conduct current, the output of â¦ This will give us the forward-bias characteristic of the diode. 7 0 obj The measurements are to be collected into table. One significant application of diodes is to convert AC power to DC power. Free electrons appear at room temperature due to breaking of the covalent bonds. The output voltage waveform is shown in fig. 2- Output graph of each experiment. x+äå*£@02ÍÍõÌ-ÐÌTÏÈÔ5Õ3630T0Ð3002220RHÎååÒ÷ÌMLO54SpÉWh ¿ 2019/2020 If the voltage applied to the diode is greater than the threshold level (geâ¦ MAKMAL ELEKTRIK DAN ELEKTRONIK TAHUN 2 (KKKL2152) Academic year. Introduction and Objectives Assume that the diodes used in the circuit are ideal. A single diode or four diodes transform 110V household power to DC by forming a halfway (single diode) or a full-wave (four diodes) rectifier. Diodes: Experiment Guide Components required for this lab: 1. 15 0 obj If the diode in series clipper circuit is in forward bias condition, the output waveform at the load follows the input waveform. endobj CONCLUSION This experiment focuses on the investigation of the basic characteristics of a diode. 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