Zener diodes have major application for being used as a voltage regulator for providing stable reference voltages for use in power supplies, voltmeters, and other instruments. In this article, you will see how the Zener diode maintains (regulate) a nearly constant dc voltage under the proper operating conditions.
Category: Diode Page 2 of 4
Difference Between Diode and Transistor
Difference between Diode and Transistor is very important to understand because diode and transistor are considered as the heart of the electronic circuit.
Tunnel Diode is invented by researcher Leo Esaki in 1957 he received the Nobel Prize in 1973 for discovering the electron tunneling effect used in these diodes. Therefore, it is sometimes known as Esaki Diode, he discovered that by adding high impurities to the normal PN junction diode a diode can exhibit negative resistance in the forward bias.
Gunn Diodes are named after a researcher J. B. Gunn from an IBM, he discovered that the materials form group (III-V) of predict table such as Gallium arsenide (GaAs), and Indium Phosphide (InP), when applied voltage increases up to the certain value the mobility of electrons in these materials decreases, thereby producing negative differential resistance region. A diode made up of these materials can generate microwaves frequencies.
A major difference between Diode and Zener Diode is that a PN junction diode can operate in forward bias only whereas a Zener Diode can operate in Forward bias as well as in reverse bias. There are a number of differences between a normal diode and a Zener diode and in this article, we will cover them one by one.