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The essential guideline behind the working of a zener diode lies in the reason for breakdown for a diode in converse one-sided condition. Typically there are two sorts of breakdown-Zener and Avalanche.

1.) Zener Breakdown

This sort of breakdown happens for a converse inclination voltage between 2 to 8V. Indeed, even at this low voltage, the electric field power is sufficiently solid to apply a power on the valence electrons of the molecule such that they are isolated from the cores. This outcomes in development of portable electron gap sets, expanding the stream of current over the gadget.

This sort of separate happens regularly for profoundly doped diode with low breakdown voltage and bigger electric field. As temperature builds, the valence electrons acquire vitality to disturb from the covalent bond and less measure of outside voltage is needed. Hence zener breakdown voltage diminishes with temperature.

2.) Torrential slide breakdown:

This kind of breakdown happens at the converse inclination voltage over 8V and higher. It happens for delicately doped diode with vast breakdown voltage. As minority charge bearers stream over the gadget, they have a tendency to crash into the electrons in the covalent bond and reason the covalent bond to upset. As voltage expands, the active vitality of the electrons additionally increments and the covalent bonds are all the more effectively upset, creating an increment in electron opening sets. The torrential slide breakdown voltage increments with temperature.

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8y ago
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14y ago

In a reverse bias higher than laid down

voltage

A. is a diode whereby the reverse breakdown voltage will provide a mode of operation usually as a regulator

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1y ago

Zener diode is explained in this video: youtu.be/iwBoOPA_6pI

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10y ago

tunneling

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Q: How does zener diode work?
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Related questions

What is Zener resistance of the Zener diode?

zener resistance of a zener diode is the resistance of the zener diode but which is the resistance of a diode


What is the difference between an ideal zener diode and practical zener diode?

Zener diode is heavily doped pn junction diode.


How is zener diode different from a conventional diode or ideal diode?

zener diode :zener diode operates under reverse bias voltageideal diode :ideal diode operates under forward bias voltage


Does a zener diode acts as a switch?

A zener diode cannot be used as switch.


How do you xxplain the zener shunt regulator?

zener diode is a special type of pn junction diode that work in breakdown region . There are two types of brekdowns in zener i.e avlanche breakdown and zener breakdown depending on the doping concentration. A zener diode in an on state can be considered as a voltage source ,equal to its zener voltage n hence act as an voltage regulator


Who invented the zener diode?

Dr. Clarence Melvin Zener of Southern Illinois University invented the zener diode.


Will a zener diode work the same as a germanium diode?

No. An ordinary diode, be it silicon or germanium, conducts in one direction only, whereas a zener diode conducts in both directions, but at different voltages. An ordinary diode is used to rectify, using its forward bias characteristics, while a zener diode is used to regulate, using its reverse bias characteristics.


What is the function of zener?

zener diode is a revers bias diode which used for voltage regulation.


Does the zener diode work after breakdown?

A: Believe it or not that is the only time that it is useful


What is the leakage current of zener diode?

The leakage current of a (zener) diode is the current that leaks when a diode is connected in reverse biased.


What is leakage current of zener diode?

The leakage current of a (zener) diode is the current that leaks when a diode is connected in reverse biased.


What is the difference between p n junction and zener diode?

The difference between the pn-junction diode and the zener diode is that the pn-junction diode is used for rectification while the zener diode is used for rectification and stabilization. Also, the zener diode can function in the breakdown region while the pn-juntion diode can not function in that regime.