The rectifier diodes are used in power supplies to convert a. Zener diode as voltage regulator tutorial basic electronics tutorials. 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. 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. Zener diode circuit zener diode is nothing but a single diode. The diode is one of the basic components in electronic circuits.
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. This manual was prepared to acquaint the engineer, the. 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.
The adobe flash plugin is needed to view this content. 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. Zener diode working with circuit diagram and applications. If we had oriented the diode in the normal way, so as to be forwardbiased, it would only drop 0. Diodes and transistors pdf 28p this note covers the following topics. Write down all circuit equations and simplify as much as possible 2. A zener diode is a type of diode that permits current to flow in the forward direction. The examples are related to the zener diode voltage regulator circuits. A zener diode is a diode that breaks down at a specific voltage when it is reverse biased. Zener diode, circuit, voltage regulator, digital, mixed signal introduction.
Some of the more common specialpurpose diodes are i zener diode. Another form of zener diode circuit is an overvoltage protection circuit. Zener diodes are used in circuits to maintain a fixed voltage across a load. Figure 1a shows a typical circuit of the zener diode circuit. Recipe for solving diode circuits state of diode is unknown before solving the circuit 1. Zener diodes as voltage regulators a circuit diagram symbol for a zener diode. Pdf explain a little about the zener diode sina taherinasab. Ppt zener diode applications powerpoint presentation. Zener diodes are widely used to regulate the voltage across a circuit. Diode circuits tutorial pdf 25p this note covers the following topics. 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. Ppt zener diode applications powerpoint presentation free to download id.