Zener Diode Circuit Working and Applications.
The diode is one of the basic components in electronic circuits. When you want to know about voltage considerations you should know about the diodes. The diode is basically made up of semiconductors which have two characteristics, ‘P’ type and ‘N’ type. The ‘P’type and ‘N’ type semiconductors represent positive and negative type semiconductors. ‘P’type semiconductor will have excess amount of holes in configuration and ‘N’ type semiconductor will have excess amount of electrons. If both types of characteristics present in a single crystal then it can be termed as a diode. The positive terminal of the battery connects with the ‘P’ side and the negative side is connected with the ‘N’ side. Let’s discuss about Zener diode working, It is nothing but a simple diode connecting in reverse bias.
Zener Diode
It is mainly a special property of the diode rather than any special type of equipment. The person named Clearance Zener invented this property of the diode that’s why it is named after him as a remembrance. The special property of the diode is that there will be a breakdown in the circuit if the voltage applied across a reversely biased circuit. This does not allow the current to flow across it. When the voltage across the diode is increased, temperature also increases and the crystal ions vibrate with greater amplitude and all these leads to the breakdown of the depletion layer. The layer at the junction of ‘P’ type and ‘N’ type. When the applied voltage exceeds an specific amount Zener breakdown takes place
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.we can connect it for different application.
For convenience it is used normally. When discussing about the diode circuits we should look through the graphical representation of the operation of the Zener diode. It is called the V-I characteristics of a general p - n junction diode.
Characteristics of a Zener Diode
The V-I characteristics of the Zener diode behavior. When the diode is connected in forward bias diode acts as a normal diode. When the reverse bias voltage is greater than a predetermined voltage then the Zener breakdown voltage occurs. To get breakdown voltage sharp and distinct doping is controlled and the surface imperfections are avoided. In the V-I characteristics above Vz is the Zener voltage. And also the knee voltage because at this point the current is the current is very rapid.
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9 авг 2020
