Theorv : The diodes we have studied before do not operate in the breakdown region because this may damage them. Chapter 6: Diode applications (Power supplies, voltage regulators & limiters) ... ALM1000 Lab Activity Diode Rectifiers. Ì×å?ÜÝځ¶Óñm[3£uUDnwNтÔv‹|üâïJ‚°4'ؖueÛ`ý ¶›É 1n-1)ìÝwlÈvyéî81š§Ãõ×kìJ×Fd{žvæP(;ØH{þ.à#Ÿ5¬9RŽÉ$ÐSÎ ¥nŠ§lBR†2W6Xΰ7Ò96„wkâ*{X’á^;àñKžÛš¬d Å|é9sÉÍ3“~¹ž×"ԆžÏôƒ ;½¹Õ&Qm¿`O¢â©z0{Ú~¹žÔ†ßS®=("4¡ðœ*8—&ž0ä, ´‡ð„!ƒí^µq…'Y.0a… xBŠA­#ÂP”ÂfdŠ'@˜dímáñv†á0ï28®j×ã»6•0íJ뻇àß Jž+ gâDH(JEJSüdÆ'WøÁüýºYŽuV’½ÏçFÀ×^VR The goal for the second experiment is to be come familiar with the PN junction diode and its different applications. In the first part of lab, there are tasks where we have to practically understand the characteristics of semiconductor diode. <> Discover everything Scribd has to offer, including books and audiobooks from major publishers. 12 0 obj Than & Bhavin A Brief List of Applications of Diode with Details. 16 0 obj Half-wave or full-wave rectification does not produce a constant-voltage DC as we have seen in the previous figures. Zener diode is a P-N junction diode specially designed to operate in the reverse biased mode. To analyze and understand the nature of I-V curve of the diode 2. This lab uses liquid nitrogen (LN), which is very cold: approximately. endobj This application note discusses the implementation of this voltage regulator and its … CONCLUSION This experiment focuses on the investigation of the basic characteristics of a diode. The primary objectives of this lab are: 1. k‚í¢6ƒV³ rU˜s©S›Ì6íÊYš„3O†z=0 ϬŠ ? Diode characteristics & Design of Rectifier circuits. Introduction and Objectives 9. This lab will focus on the fabrication of a Schottky diode and the characteristics they possess. Than & Bhavin [1] Understanding how a diode works from an ‘atomistic’ and a ‘circuit elements’ point-of-view is … mean) load voltage, dc load current, dc diode current, and peak- to-peak ripple voltage. The primary objectives of this lab are: 1. In general, the cathode of a diode is marked by a solid line on the diode.The primary function of the diode is rectification. 9 0 obj 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. 13 0 obj Since Diodes are one of the fundamental electronic devices, which has various applications, it is important to know their characteristics and how they work. The DF06MA diode bridge is of the same family as the DF02 and DF04 diode bridges you used in a previous lab. Set the Channel 1 attenuation knob to 0.2 V/div. Lab Report . 2- Output graph of each experiment. To understand about the revers saturation current Is, and the ideality f, EGR220 We know that a Diode allows the current flow only in one direction and hence it acts as a one-way switch. 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. Only one per 1.4×1013 bonds is broken. – ECE 09.311: Lab 2 – 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. The maximum voltage across the diode is Vm. <> Lab #1 Note: All diodes used are 1N540 (Silicon junction diode) and 1N747 (Zener diode). endobj endobj This was also to e xpand the student’s knowledge and as well as his laboratory skills on the subject. (a) P-N junction (b) schematic symbol (c) diode packaging. endobj It is acting as normal diode while forward biasing. 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. The diode is a device formed from a junction of n-type and p-type semiconductor material. Lab #1 stream Theoretical Output Voltages Predict the expected output waveform of each circuit shown in Figures 1 through 6. <> Include your recorded waveforms in the lab report. LN can cause severe skin and eye "burns". Videos Tutorial . For the prelab, estimate the dc (i.e. <>>>/BBox[ 0 0 172.42 61.274] /Matrix[ 0.41758 0 0 1.175 0 0] /Filter/FlateDecode/Length 69>> Name of the Experiment : Zener Diode applications. But in the waveform and the report there are some points that I want to discuss. Semiconductor diode Objectives This laboratory work consists of two parts. Aim: To design and simulate a Full Wave Rectifier circuit. This will give us the forward-bias characteristic of the diode. <> The half – wave rectifier circuit is similar to a series clipper circuit. In principle, Schottky diodes are rectifying as the current can only flow one way. Many wave shapes can be produced with the proper application of these two important diode functions. They can also handle high frequencies and have lower power loss which makes them ideal for many applications [2]. 14 0 obj Academic year. Discussion: Clipping and clamping are very widely used diode applications. l‹Ë Objective: Study of the Zener Diode applications. Circuit Theory (EE112) Uploaded by. chung chinngee. EEM328 Electronics Laboratory - Report2 - Diode Characteristics - Free download as Word Doc (.doc), PDF File (.pdf), Text File (.txt) or read online for free. Úá.„ Set the polarity switch of the CTA to “NPN / n-channel / diode forward”. Video Tutorial . 6.1.3 Rectifier output smoothing. 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. When the diode is in reverse bias and it is unable to conduct current, the output of … You will make I-V curves for each and will see how a diode can be … MAKMAL ELEKTRIK DAN ELEKTRONIK TAHUN 2 (KKKL2152) Academic year. Explain the effects of using a diode that is not ideal. 3. 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. A Zener diode is different; it is a silicon diode that the manufacturer has optimized for operation in the breakdown region. xœí]TYº^ÇÙÝ÷Þy{ö½³o "ˆ 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. UCSI University. 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. 2019/2020 partners lab.All the prelab must be done and read before the session start. Analog lab 1-2 - Diode characteristics & Design of Rectifier circuits. <> endstream endobj 7 0 obj endobj 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. endobj This was conducted as an introductory to Electronics laboratory and in line with some topics in lecture classes. endobj As a consequence, current flows through diodes D3 and D4. 15 0 obj The diode must be capable to withstand this voltage. Therefore, in this lab, we were instructed to measure and analyze the static characteristic of diodes. 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. The diode allows only half of the AC waveform to travel through it. 9 10. endobj Therefore, in this lab, we were instructed to measure and analyze the static characteristic of diodes. stream Aim: To design and simulate a Half Wave Rectifier circuit. endobj One significant application of diodes is to convert AC power to DC power. 2015/2016 The Zener diode has a unique property that offers a simple, low-cost solution to this problem. In the Lab – Zener Diode Characteristic 1. The purpose of this lab is to study the characteristics of the diode. Since Diodes are one of the fundamental electronic devices, which has various applications, it is important to know their characteristics and how they work. In the case of normal diodes the diode damages at the break down voltage. Free electrons appear at room temperature due to breaking of the covalent bonds. Diode nomenclature and identification of polarity. <> ... 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. The lead connected to the p-type material is called the anode and the lead connected to the n-type material is the cathode. Some of the characteristics that will be investigated are the I-V curve and the rectification properties. 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. EGR220 Based on the data sheet, what range of dc diode drop do you expect to see given the expected diode current? Lab 2 KKKL2152- Diode Applications. You will find the relationship between the voltage and current in a diode, and study temperature effects, rectification, nonlinear phenomena, and frequency doubling. Course. In digital or mixed-signal applications, there is a need to precisely regulate the voltage entering or exiting a circuit. 1N4148 diode (x 1) 2. Course. 6 0 obj The measurements are to be collected into table. Introduction and Objectives 3. This device can be operated by controlling the voltage applied to it. Lab IV: Silicon Diode Characteristics – Page 4 Figure 1. Assume that the diodes used in the circuit are ideal. University. 11 0 obj <> Rectifier Diode. endobj 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 = 1KΩ. endobj Universiti Kebangsaan Malaysia. When the voltage applied to the anode is positive with respect to the cathode, the diode is forward biased. 5 0 obj It has a particular voltage known as break down voltage, at which the diode break downs while reverse biased. The output voltage waveform is shown in fig. 3. 8 0 obj <> 22u capacitor (x 1) 5. 1M resistor (x 1) 4. 1k resistor (x 1) 3. <> xœ+äå*£@02ÍÍõÌ-€ÐÌTÏÈÔ5Õ3630T0Ð3002220RHÎååÒ÷ÌMLO54SpÉW€h ‚¿ 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. PRE-LAB WORK 1. University. 2. Replace the 1N914 signal diode with the 4.7V Zener diode. Specifically, measure forward and reverse resistances, voltages and the current. Did the clipper circuits in step 6 of the Procedure work as expected? This lab studies diodes. Method The circuits that were used in the Prelab are shown in the figure Figures 1 &2. A diode is an electronic component which has two electrodes named as anode and cathode. 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. waveforms in the lab report. Under what circumstances would the effects of a non-zero forward resistance and a non-zero knee voltage be most observable? 3- Filling all tables and answering all questions in the report. The diodes found many applications in electrical and electronics field such as rectifier, voltage regulators, switches, signal demodulators, signal modulators, signal mixers, and oscillators. 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. *£¢"¨˜Å2†Á. A rectifier diode is a type of P-N junction diode, whose P-N junction area is very … 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. 10 0 obj Diode is made of P and N type materials and has two terminals namely anode and cathode. 1. <> If the voltage applied to the diode is greater than the threshold level (ge… <> Diodes: Experiment Guide Components required for this lab: 1. 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