The primary objectives of this lab are: 1. Diode nomenclature and identification of polarity. 3. The measurements are to be collected into table. If the diode in series clipper circuit is in forward bias condition, the output waveform at the load follows the input waveform. 15 0 obj <> <> [1] Understanding how a diode works from an ‘atomistic’ and a ‘circuit elements’ point-of-view is … 11 0 obj Zener diode is a P-N junction diode specially designed to operate in the reverse biased mode. <>>>/BBox[ 0 0 172.42 61.274] /Matrix[ 0.41758 0 0 1.175 0 0] /Filter/FlateDecode/Length 69>> endobj 3- Filling all tables and answering all questions in the report. 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. 9 0 obj In the first part of lab, there are tasks where we have to practically understand the characteristics of semiconductor diode. Diode characteristics & Design of Rectifier circuits. This lab studies diodes. PRE-LAB WORK 1. The maximum voltage across the diode is Vm. If the voltage applied to the diode is greater than the threshold level (ge… 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. 12 0 obj endstream University. UCSI University. In the Lab – Zener Diode Characteristic 1. Úá.„ Lab #1 University. A Brief List of Applications of Diode with Details. One significant application of diodes is to convert AC power to DC power. 8 0 obj endobj 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. 7 0 obj 9. <> 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. mean) load voltage, dc load current, dc diode current, and peak- to-peak ripple voltage. Analog lab 1-2 - Diode characteristics & Design of Rectifier circuits. <> Lab 2 KKKL2152- Diode Applications. Under what circumstances would the effects of a non-zero forward resistance and a non-zero knee voltage be most observable? endobj 6 0 obj Diodes: Experiment Guide Components required for this lab: 1. It is acting as normal diode while forward biasing. Many wave shapes can be produced with the proper application of these two important diode functions. Theoretical Output Voltages Predict the expected output waveform of each circuit shown in Figures 1 through 6. The output voltage waveform is shown in fig. We know that a Diode allows the current flow only in one direction and hence it acts as a one-way switch. Assume that the diodes used in the circuit are ideal. They can also handle high frequencies and have lower power loss which makes them ideal for many applications [2]. 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 2. It has a particular voltage known as break down voltage, at which the diode break downs while reverse biased. l‹Ë (a) P-N junction (b) schematic symbol (c) diode packaging. Video Tutorial . Explain the effects of using a diode that is not ideal. xœ+äå*£@02ÍÍõÌ-€ÐÌTÏÈÔ5Õ3630T0Ð3002220RHÎååÒ÷ÌMLO54SpÉW€h ‚¿ To understand about the revers saturation current Is, and the ideality f, EGR220 endobj endobj partners lab.All the prelab must be done and read before the session start. 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. Name of the Experiment : Zener Diode applications. MAKMAL ELEKTRIK DAN ELEKTRONIK TAHUN 2 (KKKL2152) Academic year. – 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. endobj Theorv : The diodes we have studied before do not operate in the breakdown region because this may damage them. The diodes are made by semiconductors such as germanium, silicon and selenium. Did the clipper circuits in step 6 of the Procedure work as expected? To analyze and understand the nature of I-V curve of the diode 2. 1M resistor (x 1) 4. 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. A diode is an electronic component which has two electrodes named as anode and cathode. Since Diodes are one of the fundamental electronic devices, which has various applications, it is important to know their characteristics and how they work. <> endobj A Zener diode is different; it is a silicon diode that the manufacturer has optimized for operation in the breakdown region. This lab will focus on the fabrication of a Schottky diode and the characteristics they possess. Semiconductor diode Objectives This laboratory work consists of two parts. The half – wave rectifier circuit is similar to a series clipper circuit. 6.1.3 Rectifier output smoothing. In principle, Schottky diodes are rectifying as the current can only flow one way. <> Since Diodes are one of the fundamental electronic devices, which has various applications, it is important to know their characteristics and how they work. Diode is made of P and N type materials and has two terminals namely anode and cathode. Introduction and Objectives Discussion: Clipping and clamping are very widely used diode applications. Course. <> 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. 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. The diodes found many applications in electrical and electronics field such as rectifier, voltage regulators, switches, signal demodulators, signal modulators, signal mixers, and oscillators. Some of the characteristics that will be investigated are the I-V curve and the rectification properties. waveforms in the lab report. Lab IV: Silicon Diode Characteristics – Page 4 Figure 1. Set the Channel 1 attenuation knob to 0.2 V/div. Videos Tutorial . Lab #1 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. <> The Zener diode has a unique property that offers a simple, low-cost solution to this problem. You will make I-V curves for each and will see how a diode can be … 2015/2016 As a consequence, current flows through diodes D3 and D4. For the prelab, estimate the dc (i.e. 9 10. 10 0 obj The goal for the second experiment is to be come familiar with the PN junction diode and its different applications. 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. Course. endobj Universiti Kebangsaan Malaysia. endobj Note: All diodes used are 1N540 (Silicon junction diode) and 1N747 (Zener diode). *£¢"¨˜Å2†Á. 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. The DF06MA diode bridge is of the same family as the DF02 and DF04 diode bridges you used in a previous lab. 3. chung chinngee. This lab uses liquid nitrogen (LN), which is very cold: approximately. When the voltage applied to the anode is positive with respect to the cathode, the diode is forward biased. Free electrons appear at room temperature due to breaking of the covalent bonds. The diode allows only half of the AC waveform to travel through it. When the diode is in reverse bias and it is unable to conduct current, the output of … stream stream Lab Report . In digital or mixed-signal applications, there is a need to precisely regulate the voltage entering or exiting a circuit. The diode is a device formed from a junction of n-type and p-type semiconductor material. CONCLUSION This experiment focuses on the investigation of the basic characteristics of a diode. Aim: To design and simulate a Half Wave Rectifier circuit. The primary objectives of this lab are: 1. 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. ... 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. Objective: Study of the Zener Diode applications. xœí]TYº^ÇÙÝ÷Þy{ö½³o "ˆ Rectifier Diode. <> In general, the cathode of a diode is marked by a solid line on the diode.The primary function of the diode is rectification. Particular voltage known as break down voltage n-type material is called the anode and cathode waveform to travel it. 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