CONCLUSION This experiment focuses on the investigation of the basic characteristics of a diode. The circuit was constructed according to Figure- 02. On top of that, the transition into reverse breakdown is very sharp. Observe the nearly constant voltage in the breakdown region. Feedback Zener voltage is the basic voltage that is set as the cut-off value, and the breakdown value of the voltage must be lying close to the desired value that we want it is just approximated. But due to higher doping concentration, higher current flows through the Zener diode.In the third quadrant, the magic happens. With your lab partner, brainstorm on the following ideas: Theory . 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. - Determining the quiescent point Q(VZ,IZ) - Determining the differential resistance of a Zener diode. Only minority carriers cause small leakage current at reverse voltage. As the breakdown voltage is appr… It is acting For correct voltage regulation, we need to find out precisely what voltage should be across the Zener diode.Zener breakdown voltage should be approximately close to the desired … To study the voltage regulation in Zener diode regulation circuit. 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. This phenomenon is called, . 3. Objectives: To study the characteristics of Zener diode. Zener Diode Characteristics - Zener regulator Prelab: You are tasked to determine experimentally the characteristic curve of a reverse-biased Zener diode. Connections can be made as seen in the circuit diagram by clicking and dragging the mouse from one connecting terminal to the other connecting terminal of the devices to be connected. For part B, Value for current across R (I. calculated by using the equation below to find the experiment regulation. To draw the characteristic curve of a Zener diode and to determine its reverse breakdown voltage. –A™Ì{K«aiX¹E[v‡ßÚ_ÜB‚ì߁ ’Ì §P!‰. Required Parts and Equipment's 1. This was also to e xpand the student’s knowledge and as well as his laboratory skills on the subject. Zener diode has the property of behaving like a dc battery in ‘on’ state (i.e. The layer at the junction of ‘P’ type and ‘N’ type. Course Hero is not sponsored or endorsed by any college or university. This property of zener diode makes its use as a voltage regulator. We will learn about the V-I characteristics of Zener Diode and to draw the V-I characteristics graph. To find Zener break down voltage in reverse biased condition. The electric field may become large enough that covalent bonds are broken and electron-hole pairs are created. In this article, we are going to explain Zener diode and its applications in detail. Reverse Characteristics. A Zener diode not only allows current to flow from anode to cathode but also, in the reverse direction on reaching the Zener voltage. The reverse-bias current created by breakdown mechanism is limited only by the external, circuit. 2. Do check out – V-I characteristics of PN Junction Diode (Zener Diode V-I Characteristics) When the applied voltage exceeds an specific amount Zener breakdown takes place. The function of R in this circuit is to, safe value so that the diode does not overheat. This was conducted as an introductory to Electronics laboratory and in line with some topics in lecture classes. Objectives: • Obtain the I-V curves of a signal diode and a zener diode • Compare the performance of different rectifier circuits . Forward Characteristics of Zener Diode. To determine whether a zener diode is regulat- ing at the proper voltage, a regulation test must be performed. Experiment No: 2 ZENER DIODE CHARACTERISTICS AIM: 1. Zener diodes are used in application for, which a constant voltage in breakdown is desirable. 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. Theory: Zener Diode: Zener diode is a heavily doped PN junction diode. EXPERIMENT NUMBER 4 ... characteristics of diodes and the use of diodes in rectifier and limiter circuits. To construct a zener voltage regulator and experimentally determine the range over which the zener maintains a constant output voltage. To construct a Zener voltage regulator and experimentally determine the range over which the Zener maintains a constant output voltage. As we increase the reverse voltage, initially a small reverse saturation current Io. when the voltage across the zener diode exceeds its zener voltage rating VZ) . Do the same experiment by connecting the Zener diode in the forward bias. We will then plot it to get the depen-dence. Reference . The typical forward voltage at room temperature with a current of around 1 mA is around 0.6 volts. Find Zener Breakdown Voltage in Reverse Biased conditions. In our previous articles, we explain in detail about diodes, PN junction diode, semiconductors etc. Zener diode regulators provide a constant output voltage despite changes in the input voltage or output current. 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? Brief Theory: When a reverse-bias voltage is applied to a pn junction, the electric field in the space-charge region is increases. 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