7-9 4. The experiment is continued till the milliammeter shows a large deflection while the voltmeter reading remains a constant, indicating the break down voltage. Pn Junction Diode Characteristics Experiment Using Breadboard March 30, 2019 Get link; Facebook; Twitter; Pinterest; Email The unit is supplied with a breadboard to help students experiment with test circuity using various components without having to solder. Result: Volt-Ampere Characteristics of P-N Diode are studied. Sl No Name of Experiment Page No 1. Experiments: Silicon, Zener, LED Diode Characteristics; Common Base NPN and PNP Transistor Characteristics 2. In the reverse bias condition the Zener diode is an open circuit and only a small leakage current is flowing as shown on the exaggerated plot. # Characteristics of a Zener Diode The above diagram shows the V-I characteristics of the Zener diode behavior. The Zener diode mainly operates in reverse biased condition. Connect voltmeter and ammeter in correct polarities as shown in the circuit diagram. 4 I. The lead connected to the p-type material is called the anode and the lead connected to the n-type material is the cathode. EXPERIMENT NUMBER 4 Examining the Characteristics of Diodes . Procedure: Step 1. Chapter 2 Zener Diode Zener Diodes The Breakdown. The characteristics of these references make them excellent replacements for zener diodes in many applications such as digital voltmeters, power supplies, and op amp circuitry. Zener Diode Makes For A Lousy Regulator Bald Engineer. The ADALM1000 hardware can only produce (and measure) voltages up to the 5 V maximum. C. Half Wave Rectifier Build the rectifier circuit shown in Figure 4. This article will help to explain the characteristics which make up zener diodes, specifically how the voltage across a zener diode varies with the current flowing through it. A number of ready to use experiment circuit boards are provided. INTERPRETATION OF RESULTS This experiment demonstrates the characteristics of a zener diode. (Note: All or any pre-lab works must be completed before coming to the lab and must be handed-in to the lab instructor during entering the lab and at the beginning of lab session) Procedure Zener diode I-V characteristics 1. 3.1 Diode Characteristics Small-Signal Diodes Diode: a semiconductor device, which conduct the current in one direction only. Electronic & semiconductor devices Page 5 of 7 INTERNATIONAL UNIVERSITY SCHOOL OF ELECTRONICS & TELECOMMUNICATIONS ENGINEERING (EE) 1. Build the circuit shown in Figure 1 on your solderless breadboard using the 1N4735 6.2 V Zener diode. Zener diode is nothing but a single diode connected in a reverse bias mode and Zener diode can be connected in reverse bias positive in a circuit as shown as picture.we can connect it for different applications. 10-1 2 On the first objective of the experiment, the group demonstrated the dc characteristics of the Zener Diode with the use of a breadboard. The VI characteristics of a zener diode is shown in the below figure. While doing the experiment do not exceed the readings of the diode. First, we will look at the general laboratory experiment and it’s format. Zener diode regulator. You will need to wire this on your breadboard. To Study the working of a diode as Bri dge rectifier with and without filter. 3. #24 wire ... You will mostly use electrolytic and ceramic capacitors for your experiments. Zener Diode Characteristics - Zener regulator Prelab: You are tasked to determine experimentally the characteristic curve of a reverse-biased Zener diode. Zener Diode characteristics: VI characteristics of Zener Diode. We use Zener diodes for voltage regulation and voltage stabilisation. We can add an external negative voltage source to combine with the positive internal voltage to produce a total voltage high enough for this experiment. The above diagram shows the V-I characteristics of the Zener diode. Zener diode is connected in reverse bias, so once the Zener voltage exceeds then the current flows through the diode but there is an unnoticeable voltage drop. 4-6 3. Understand Zener Diode Datasheet Specifications. David started the tutorial comparing between zener and regular diode. 18 ZENER DIODE Experiment No. You must also design a circuit that demonstrates the operation of a 7 V ± 5% loaded Zener regulator powered by a 12 V DC voltage source. When the diode is connected in forward bias diode acts as a normal diode. Objectives: • To study the I-V characteristics of a Zener diode. Here we go with the Zener Diode Characteristics Experiment Using Multisim Software This is considered as the basic application of Zener diode. Make sure that the thermocouple is in the vicinity of the diode. Materials and Equipments: 1 Industrial Electronics Trainer III. Figure 2. • Never use larger wire as jumpers. Experiment No: 2 ZENER DIODE CHARACTERISTICS AIM: 1. To Study the working of a diode as half w ave rectifier with and without filter. Conventional Zener Diode With Rz 30 W Shows A 1st I V. Why … With these, the group was able to observe how a Zener Diode acts like a rectifier diode when it is forward bias and a voltage regulator when it is in reverse bias. To plot Volt-Ampere characteristics of Zener diode. To measure the reverse breakdown voltage of your Zener diode we need to produce a voltage difference larger than the breakdown voltage of the 6.2 V 1N4735 diode. The typical forward voltage at room temperature with a current of around 1 mA is around 0.6 volts. Preface: ... Another use of diodes, especially zener diodes, is as a limiter. 2. What Is Zener Diode Operation Principle Types Uses Of . • To study the concept of designing a Zener Voltage Regulator. The critical parameter of this type of diodes is the Zener breakdown voltage. When the positive polarity is at the anode – the diode is forward biased and is conducting. In this way, it is used as a voltage regulator. Zener Diode Characteristics. To get breakdown voltage sharp and distinct doping is controlled and the surface … When the positive polarity is at the cathode – the diode is reversed biased and is not conducting. For convenience it is used normally. To Study the Reverse characteristics of Zener diode. Electrolytic capacitors An electrolytic capacitor is a type of capacitor that uses an electrolyte, an ionic conducting liquid, as one of its plates, to achieve a larger capacitance per unit volume than other types. 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