Question

how many types of diode how ti recognize them

Answer 1

1. PN Junction diode -

The ordinary diode used in most applications from rectifiers to clippers.

2. Zener diode -

A diode with a high reverse breakdown voltage used as a voltage regulator.


3. Photodiode -

A diode which emits electron hole pairs when exposed to light, used to make detectors and solar cells among other things.


4. Light-Emitting Diode (LED)-

The inverse of the photodiode, it gives out light when driven by electricity. Its low power consumption makes it an attractive lighting source.


5. Tunnel diode -

A diode capable of very high speed operation due to the quantum tunneling effect. It is used in high frequency applications.


6. Varactor diode -

A diode whose capacitance can be varied with applied voltage..



7. Schottky diode -

It is a diode which is used to maintain a fixed voltage of 0.15 - 0.45 Volts. It is used mainly to speed up transistor switching.