✔ Definition Of Diode Characteristic

Definition Of Diode Characteristic

- February 15, 2018

Three important characteristics of a diode are first of all the forward voltage drop. The zener diode is a special type of diode that is designed to work in reverse bias and in the so called zener region of the diode characteristic curve.

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The breakdown voltage of a zener diode is carefully set by controlling the doping level during manufacture.

Definition of diode characteristic. The most basic device is diode. In other words the diode which is specially designed for optimising the breakdown region is known as the zener diode. The graph below shows the current voltage characteristic of the semiconductor diode.

A heavily doped semiconductor diode which is designed to operate in reverse direction is known as the zener diode. So that it can give a sharp breakdown voltage. This article covers the zener diode definition working principle characteristics and applications.

A diode is simply a pn junction but its applications are extensive in electronic circuits. A pn junction diode is one of the simplest semiconductor devices around and which has the characteristic of passing current in only one direction only. It has low ideally zero resistance in one direction and high ideally infinite resistance in the other.

A diode is a two terminal electronic component that conducts current primarily in one direction asymmetric conductance. Diode is a two terminal pn junction device. A zener diode is a p n junction semiconductor device designed to operate in the reverse breakdown region.

A conventional solid state diode allows significant current if it is reverse biased above its reverse breakdown voltage. When a p type material is brought in contact with n type material electrons and holes start recombining near the junction. Then there is the reverse voltage drop.

This is a typical characteristic for semiconductor diodes used in electronics v f 07v. However unlike a resistor a diode does not behave linearly with respect to the applied voltage as the diode has an exponential current voltage i v relationship and therefore we can not described its operation by simply using an equation such as ohms law. A special type of pn junction diode that operates in reverse biased mode more specifically in breakdown region is known as zener diode.

Under a forward bias condition this should be about 7 volts. Temperature coefficient of zener voltage against nominal zener voltage. The semiconductor diode starts conducting current after exceeding the threshold of the forward voltage value specified by the manufacturer in the data sheet.

The doping level of the zener diode is somewhat higher than the normal pn junction diode. Current voltage characteristic of a zener diode with a breakdown voltage of 34 v. Pn junction is formed by bringing a p type material in contact with n type material.

Semiconductor diode current voltage characteristic.