zener diode characteristics experiment using breadboard

To calculate static and dynamic resistances of the Zener diode in both forward and reverse biased conditions (before, after break down voltages). When the positive polarity is at the anode – the diode is forward biased and is conducting. The I-V Characteristics Curve of a zener diode, shown below, is the curve which shows the current-voltage relationship of a zener diode. The lead connected to the p-type material is called the anode and the lead connected to the n-type material is the cathode. The Zener diode mainly operates in reverse biased condition. 4-6 3. Sl No Name of Experiment Page No 1. EXPERIMENT NUMBER 4 Examining the Characteristics of Diodes . A single zener diode would limit the swing in one direction only. We are going to take Zener I-V Characteristics Curve experiment as an example to understand how we can perform a general experiment using the PSLab device. Use AWG1 (5 V constant) and the –5 V Vn user supply to establish the dc supply V IN. Laboratory Exercise 2 Diode Characteristics PURPOSE The purpose of this experiment is to acquaint you with the operation of diodes. Circuit Diagram: Figure 1 Zener Regulator At the end of the experiment, the student will be able to Explain the function of a Zener diode; Explain Zener Diode as Voltage Regulator; Zener Diode. On the first objective of the experiment, the group demonstrated the dc characteristics of the Zener Diode with the use of a breadboard. Build the circuit shown in Figure 1 on your solderless breadboard using the 1N4735 6.2 V Zener diode. 4.1). To find load regulation characteristics of Zener voltage regulator Apparatus: S.no Apparatus Range Quantity 1 Zener diode 1 2 Resistance 470-ohm 1 3 Regulated power supply 0-30V 1 4 Ammeter 0-100 mA 1 5 Voltmeter 0-10 V 1 6 Breadboard and wires 7 Variable resistor ( 100-1100-ohm) Introduction: An ideal P-N Junction diode does not conduct in reverse biased condition. The unit is supplied with a breadboard to help students experiment with test circuity using various components without having to solder. Experiments: Silicon, Zener, LED Diode Characteristics; Common Base NPN and PNP Transistor Characteristics 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. For V s between 0 to 20V, obtain values for I z and V z. Procedure: Step 1. To Study the V-I characteristics of Forwa rd Biased PN junction diode. By using a breadboard, Zener diode, a diode, resistors, a digital multimeter, F.A.C.E.T. 10-1 2 The experiment is continued till the milliammeter shows a large deflection while the voltmeter reading remains a constant, indicating the break down voltage. Understand Zener Diode Datasheet Specifications. This experiment is composed into 2 objectives. Chapter 2 Zener Diode Zener Diodes The Breakdown. 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. 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. 2. 18 ZENER DIODE Experiment No. David Jones made a tutorial on the fundamentals of zener diodes over his EEVblog youtube channel. However, when reverse biased voltage is applied to the zener diode, it works in different manner. Plot the reverse characteristic curve by taking reverse voltage along –ve X-axis and reverse current along –ve Y-axis. Objectives: • To study the I-V characteristics of a 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. The setup we are using for this experiment. The critical parameter of this type of diodes is the Zener breakdown voltage. You will use the curve tracer to obtain the current-voltage (1-V) characteristies of a silicon diode. Figure 2. Hence in this way the voltage is limited across the load. 3. Zener Diode Characteristics. Two terminals: anode and cathode. To get breakdown voltage sharp and distinct doping is controlled and the surface … Zener Diode Makes For A Lousy Regulator Bald Engineer. 1-3 2. First, we will look at the general laboratory experiment and it’s format. 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. Zener diode regulator. INTERPRETATION OF RESULTS This experiment demonstrates the characteristics of a zener diode. To Study the working of a diode as half w ave rectifier with and without filter. The ADALM1000 hardware can only produce (and measure) voltages up to the 5 V maximum. The typical forward voltage at room temperature with a current of around 1 mA is around 0.6 volts. Pn Junction Diode Characteristics Experiment Using Breadboard March 30, 2019 Get link; Facebook; Twitter; Pinterest; Email A Zener diode is a diode which allows current to flow in the forward direction in the same manner as an ideal diode, but will also permit it to flow in the reverse direction when the voltage is above a certain value known as the breakdown voltage To Study the working of a diode as Bri dge rectifier with and without filter. Materials and Equipments: 1 Industrial Electronics Trainer III. II. 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. Connect the circuit in Figure 1.2. 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. When forward biased voltage is applied to the zener diode, it works like a normal diode. When the diode is connected in forward bias diode acts as a normal diode. Using both charts, plot the complete IV terminal characteristics for the Zener diode. They provide a low-cost and no frill method for voltage regulation. A number of ready to use experiment circuit boards are provided. • To study the concept of designing a Zener Voltage Regulator. Zener Diode Characteristics - Zener regulator Prelab: You are tasked to determine experimentally the characteristic curve of a reverse-biased Zener diode. We use Zener diodes for voltage regulation and voltage stabilisation. Zener Diode characteristics: VI characteristics of Zener Diode. The break down voltage Vz is obtained from the graph as shown below. 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