Question
Physics Question on Semiconductor electronics: materials, devices and simple circuits
Zener diode is used for
A
producing oscillations in an oscillator
B
amplification
C
stabilisation
D
rectification
Answer
stabilisation
Explanation
Solution
When operating, a Zener diode is always in the reverse biased state. In spite of fluctuations in the input voltage or changes in the load current, a voltage regulator circuit may be created utilising a Zener diode to maintain a constant DC output voltage across the load. In this reverse biased configuration, the Zener diode is linked in parallel with the load RL and a current-limiting resistor RS is connected in series with the input voltage VS to form the Zener voltage regulator. Therefore, we may conclude that stabilisation is a function of Zener diodes.
Therefore, the correct option is (C): stabilisation