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
It is a voltage regulator
A diode (some people incorrectly call them rectifiers) is a semiconductor device that allows a current to flow in one direction. A Zener diode allows a reverse to current to flow at a defined voltage. A common application for them is as a voltage regulator. Named for C M Zener , US Physicist. A zener diode is a diode and like all diodes it will conduct in both directions. If a reversed voltage is applied it will breakdown and conduct current. Most diodes when they breakdown the reversed voltage cannot be predictable. However a zener diode when they do breakdown in the reverse voltage mode that voltage can be made as predictable and remain +/- % of the breakdown voltage. Therefore this steady voltage can be used as a regulator for instance or a definite voltage drop if need be.
Reverse Bias
a zener regulator must sustain its own current to function plus the load currents IC regulator on the other hand will require very little current to sustain regulation plus there is a gain regulation that a zener do not have.
It has poor regulation and wastes energy.
advantages and dis advantages of shunt regulator
A: NOT VERY WELL a zener requires to support booths its breakdown current and the fan current essentially the zener is a voltage regulator not a current regulator
It is a voltage regulator
The function of a zener diode is for it to act as a voltage regulator in the breakdown region.
A diode (some people incorrectly call them rectifiers) is a semiconductor device that allows a current to flow in one direction. A Zener diode allows a reverse to current to flow at a defined voltage. A common application for them is as a voltage regulator. Named for C M Zener , US Physicist. A zener diode is a diode and like all diodes it will conduct in both directions. If a reversed voltage is applied it will breakdown and conduct current. Most diodes when they breakdown the reversed voltage cannot be predictable. However a zener diode when they do breakdown in the reverse voltage mode that voltage can be made as predictable and remain +/- % of the breakdown voltage. Therefore this steady voltage can be used as a regulator for instance or a definite voltage drop if need be.
A Voltage Regulator is just a Zener Diode that is wired across the alternator terminals. ... no. Doing this will blow the zener - don't try it at home or anywhere else.
A Voltage Regulator is just a Zener Diode that is wired across the alternator terminals. ... no. Doing this will blow the zener - don't try it at home or anywhere else.
Reverse Bias
a zener regulator must sustain its own current to function plus the load currents IC regulator on the other hand will require very little current to sustain regulation plus there is a gain regulation that a zener do not have.
It has poor regulation and wastes energy.
zener diode
It is depend on your requirement .suppose you need a voltage regulator of 5V than you need 5V Zener diode.