VI characteristics of zener diode. The circuit for studying the forward bias characteristics of a Zener diode is as shown in the figure1. when the voltage across the zener diode exceeds its zener voltage rating VZ) . As the breakdown voltage is appr… The current-voltage characteristic curve of the Zener diode is shown below. On top of that, the transition into reverse breakdown is very sharp. The lead connected to the p-type material is called the anode and the lead connected to the n-type material is the cathode. Variable minimum supply voltage should be larger than, desired output voltage for the diode to operate in proper operation. Zener diode voltage regulator. Theory: Zener Diode: Zener diode is a heavily doped PN junction diode. In general, the cathode of a diode is marked by a solid line on the diode.The Zener diode regulators provide a constant output voltage despite changes in the input voltage or output current. This property of zener diode makes its use as a voltage regulator. 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 … Theory:-A Semiconductor diode is prepared by joining P and N sections of a semi conducting material like germanium or silicon. Reference . To see the circuit diagram, click on the 'Show/hide circuit diagram' check box seen inside the simulator window. We set the DC supply to 0 V and, We set the DC supply (E) to the values appearing in Table- 01 and measured both V, using the Ohmâs law given in the table and. In Experiment B, a 6v Zener Diode used is conducting (the bulb comes on) in reverse biased because the applied voltage is greater than its breakdown voltage and thus shows that the breakdown region is the region of operation of the zener diode. The function of R in this circuit is to, safe value so that the diode does not overheat. This phenomenon is called, . With your lab partner, brainstorm on the following ideas: Zener diode is a special kind of diode which permits the flow of current in the forward direction as well as in reverse direction when the voltage is above a certain voltage known as breakdown or Zener voltage. 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. First identify the terminals of Zener diode, there will be a black colored circular band on one side of the Zener diode. Apparatus used: Zener diode, voltmeter (0-2volt), voltmeter (0-30 volt), mili-ammeter, micro- ammeter, variable source (0-2 volt and 0-30 volt). Zener diodes are used in application for, which a constant voltage in breakdown is desirable. A Zener diode not only allows current to flow from anode to cathode but also, in the reverse direction on reaching the Zener voltage. Zener diodes are a special type of semiconductor diode– devices that allow current to flow in one direction only –that also allow current to flow in the opposite direction, but only when exposed to enough voltage. 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. The typical forward voltage at room temperature with a current of around 1 mA is around 0.6 volts. The Zener diode is a unique device which exploits a property of diodes that is generally avoided in standard diode applications. To construct a Zener voltage regulator and experimentally determine the range over which the Zener maintains a constant output voltage. Once the values are found it should be plotted as characteristics curve. Do the same experiment by connecting the Zener diode in the forward bias. The electric field may become large enough that covalent bonds are broken and electron-hole pairs are created. The symbol of zener diode is similar to the normal p-n junction diode, but with bend edges on the vertical bar. In this article, we are going to explain Zener diode and its applications in detail. Assignment . Required Parts and Equipment's 1. A Zener Diode is a special kind of diode which permits current to flow in the forward direction as normal, but will also allow it to flow in the reverse direction when the voltage is above the breakdown voltage or ‘zener’ voltage.u000b Zener diodes are designed so that their breakdown voltage is much lower - for example just 2.4 Volts. The VI characteristics of a zener diode … CMvG¾½^ùññ ²ºÌJ6*Ú.g'C?¸ií÷4ÔÎðjç;¼Zãt±ë5ªc©Dô¬fcà åË1:zÀ ôaX£EÏ2h);(x1z-Ç.KÁüC¤MÝ³Õ;ÝöãZ­¥FCUóV, For part B, Value for current across R (I. calculated by using the equation below to find the experiment regulation. 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