The examples are related to the zener diode voltage regulator circuits. The rectifier diodes are used in power supplies to convert a. Basic semiconductor physics, diodes, the nonlinear diode model, load line analysis, large signal diode models, offset diode model, transistors, large signal bjt model, load line analysis, small signal model and transistor amplification. Pdf performance of shunt voltage regulators based on zener. Pdf explain a little about the zener diode sina taherinasab. Some of the more common specialpurpose diodes are i zener diode.
Write down all circuit equations and simplify as much as possible 2. A zener diode is a diode that breaks down at a specific voltage when it is reverse biased. Another form of zener diode circuit is an overvoltage protection circuit. Zener diodes as voltage regulators a circuit diagram symbol for a zener diode. Zener diodes are used in circuits to maintain a fixed voltage across a load. If we had oriented the diode in the normal way, so as to be forwardbiased, it would only drop 0. Ppt zener diode applications powerpoint presentation. Ppt zener diode applications powerpoint presentation free to download id. A number of specific types of diodes are manufactured for specific applications in this fast developing world.
This manual was prepared to acquaint the engineer, the. Please take note of the zener diode s orientation in the above circuit. The zener diode has a unique property that offers a simple, lowcost solution to this problem. Zener diode working with circuit diagram and applications. The pn junction and the diode effect, current in the diode, the pn diode as a circuit element, circuit applications of ordinary diodes, power supplies, power supply filtering, split power supply, diode gate, diode protection. Chapter 10 diodes chapter 10 diodes chapter 10 diodes shockley equation zener diodes loadline analysis of diode circuits zenerdiode voltageregulator circuits loadline. Zener diode circuit zener diode is nothing but a single diode. This zener diode circuit uses the zener diode in a slightly different way, detecting the breakdown current through the diode once a certain voltage has been reached. The actual values of v and i for a diode in a circuit get determined by the iv relationship of the diode and the constraints on v and i imposed by the circuit. A zener diode is a type of diode that permits current to flow in the forward direction. Use the diode equation for that state to solve the circuit equations and find i d and v d 3. Zener diodes are widely used to regulate the voltage across a circuit. Analysis of networks employing zener diodes is quite similar to that applied to the analysis off semiconductor i d t diodes di d iin previous i. Electronics tutorial about the zener diode and how the zener diode can be used with a series resistor to produce a zener diode voltage regulator circuit.
The diode is one of the basic components in electronic circuits. The adobe flash plugin is needed to view this content. In this video, the examples based on the zener diode circuit have been solved. This application note discusses the implementation of this voltage regulator and its advantages and drawbacks. Recipe for solving diode circuits state of diode is unknown before solving the circuit 1. The diode clipper, also known as a diode limiter, is a wave shaping circuit that takes an input waveform and clips or cuts off its top half, bottom half or both halves together. Zener diode examples and circuit analysis book pdf by alvin issuu.
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