We will then plot it to get the depen-dence. The circuit was constructed according to Figure- 02. On top of that, the transition into reverse breakdown is very sharp. This voltage is generally avoided in standard diodes, but Zener diodes are designed and manufactured to have a very specific reverse breakdown voltage. Zener diodes can be tested for opens, shorts, or leakage with an ohmmeter. 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. This property of zener diode makes its use as a voltage regulator. The Zener diode is a unique device which exploits a property of diodes that is generally avoided in standard diode applications. Experiment No: 2 ZENER DIODE CHARACTERISTICS AIM: 1. 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 main aim of this experiment lies in to find out the basic value of the Zener voltage. The layer at the junction of ‘P’ type and ‘N’ type. 2- Principles Zener diodes are semiconductor diodes which are operated in the reverse direction Apparatus used: Zener diode, voltmeter (0-2volt), voltmeter (0-30 volt), mili-ammeter, micro- ammeter, variable source (0-2 volt and 0-30 volt). Typical diodes have a very high reverse breakdown voltage, the voltage at which the diode begins to conduct in the reverse direction. The P type has excess Objectives: To study the characteristics of Zener diode. Reverse Characteristics. Required Parts and Equipment's 1. 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? In ‘on’ state , the voltage across zener diode remains constant until the voltage across it deops less than VZ . 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 ... Zener diode is a P-N junction diode specially designed to operate in the reverse biased mode. To calculate static and dynamic resistances of the Zener diode in both forward and reverse biased conditions (before, after break down voltages). To study the voltage regulation in Zener diode regulation circuit. The typical forward voltage at room temperature with a current of around 1 mA is around 0.6 volts. 2. Only minority carriers cause small leakage current at reverse voltage. But due to higher doping concentration, higher current flows through the Zener diode.In the third quadrant, the magic happens. VI characteristics of zener diode. 3. A Zener diode 2. To draw the characteristic curve of a Zener diode and to determine its reverse breakdown voltage. To study the characteristics of Zener diode. Course Hero is not sponsored or endorsed by any college or university. Observe the nearly constant voltage in the breakdown region. First identify the terminals of Zener diode, there will be a black colored circular band on one side of the Zener diode. Figure 1 shows the V-I char… Reference . CMvG¾½^ùññ ²ºÌJ6”*Ú.g'C?¸„ií÷4ÔÎðjç;¼Z㐚t±‘ë5€ªc©Dô¬Œ‘fcà åË1:zÀ• ôaX£ŒEÏ2h);‡…(x1z-Ç.KÁüC¤Mݞ³Õ‚;ŽÝöãZ­¥FCUóV…˜, To construct a Zener voltage regulator and experimentally determine the range over which the Zener maintains a constant output voltage. Zener diodes are used in application for, which a constant voltage in breakdown is desirable. The function of R in this circuit is to, safe value so that the diode does not overheat. Theory:-A Semiconductor diode is prepared by joining P and N sections of a semi conducting material like germanium or silicon. 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