Question
Download Solution PDFWhich of the following diodes can be used as Voltage Regulator if used in reverse bias?
Answer (Detailed Solution Below)
Detailed Solution
Download Solution PDFConcept:
The device used for the voltage regulator is a Zener diode
Voltage regulator:
It is used to regulate the voltage level. It generates a fixed output voltage that remains constant for any changes in load conditions or input voltage.
Zener diode:
- It is PN junction (silicon PN junction) diode and has a low specified reverse voltage which takes advantage of any reverse voltage applied to it.
- Unlike a normal diode (Schottky diode, varactor diode, tunnel diode) that blocks any flow of current through itself when reverse biased.
- From the I-V characteristics curve above voltage across the diode in the breakdown, the region is almost constant.
- In the breakdown region, it can be used as a voltage regulator application.
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