Question
Physics Question on Semiconductor electronics: materials, devices and simple circuits
Zener diode acts as
A
voltage regulator in reverse biasing
B
voltage regulator in forward biasing
C
current regulator in reverse biasing
D
current regulator in forward biasing
Answer
voltage regulator in reverse biasing
Explanation
Solution
Zener diode works as a voltage regulator under reverse biasing condition. It is based on the fact that in the break down region, for quite large changes in the zener current, the voltage across the diode remains almost constant.