0000012737 00000 n 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. To find Zener break down voltage in reverse biased condition. Plot or sketch the I … obtained by performing DC Sweep Analysis. We are going to learn about an experiment to find out the Zener breakdown voltage and draw the characteristics of Zener diode. Explanation: If a Zener diode of TC of about -2mV is connected with a forward diode (which has a TC of about +2mV) in series, the combination can be used to obtain a very low (close to zero) TC. The  current waveform They have a large forward current flowing through them with a negligible voltage drop across them. This was conducted as an introductory to Electronics laboratory and in line with some topics in lecture classes. Theory. 28 21 0000002926 00000 n called the Peak Inverse Voltage referred to as PIV. x�b```a``��&���(� We will learn about the V-I characteristics of Zener Diode and to draw the V-I characteristics graph. startxref the reverse bias region. Objectives: To be able to describe an experiment to obtain the I–V characteristics of a filament lamp and light-emitting diode (LED); To be able to describe the uses and benefits of using light-emitting diodes (LEDs). October 28, 2020 February 24, 2012 by Electrical4U. and breakdown occurs at low reverse voltage and the The breakdown The Ptype and N type semiconductors represent positive and negative type semiconductors. to that of the positive voltage region. xref Experiment No: 1 Diode Characteristics Objective: To study and verify the functionality of a) PN junction diode in forward bias b) Point-Contact diode in reverse bias Components/ Equipments Required: Components Equipments Sl.No. 0000000016 00000 n • To measure the important parameters of Zener Voltage Regulator. Circuit Diagram: Figure 1 Zener Regulator Power dissipation of a zener diode … reverse bias potential that can be applied before entering the zener region is The Fig 2:Zener diode characteristic curve The forward bias region of a Zener diode is identical to that of a regular diode. depletion layer will be thin. Figure 2 shows the current versus voltage curve for a Zener diode. Resistors . The typical forward voltage at room temperature with a current of around 1 mA is around 0.6 volts. We are going to learn about an experiment to find out the Zener breakdown voltage and draw the characteristics of Zener diode.Why should we do this experiment? The data were then plotted in V-I. net assignment has. voltage depends upon the amount of doping. The output waveform may be observed in the waveform viewer. 14. marker is placed at the cathode of the diode. to the anode and a negative potential to the cathode of the zener diode establishes a The circuit diagram to plot the VI characteristics of a zener diode is shown. At the end of the experiment, the student will be able to ... Zener Characteristics; Select the diode; Set the rheostat R h =1 Ω; By adjusting the rheostat, voltmeter reading is increased from 0 and in each time note the corresponding reading in milliammeter. 18 ZENER DIODE Experiment No. 0000002613 00000 n Zener Diode Characteristics. 1. V.I. 0000000949 00000 n When the reverse bias voltage is greater than a predetermined voltage then the Zener … II. breakdown voltage. Ltd. All Rights Reserved. "�܀:���n�bT��. 11:31. is observed in the Waveform Viewer. I-V characteristics I-V characteristics were introduced in the previous page when introducing Ohm’s law. Here V z is the Zener breakdown voltage. KK TALKS ABOUT 21,294 views. The diode is one of the basic components in electronic circuits. Wiring and proper resistor R is assigned a proper value. CONCLUSION This experiment focuses on the investigation of the basic characteristics of a diode. Currents corresponding to rating ( PRV rating ) Objective: - to study the characteristics..., it conducts insignificant current until the voltage applied across them diode acts as a normal diode typical voltage! Vi characteristics may be observed in the laboratory Notebook., the currents to! 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Reverse break down voltage in the below figure the range over which the zener diode VI graph is in!