1. 1
EE182 Basic Electronics
Lecture # 11

2. 2
Zener Voltage
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3. 3
Zener Biasing


4. 4
Uses of Zener Diode
 As voltage regulator
 As a fixed reference voltage in a network for
1. Biasing
2. Comparison
3. Calibrating voltmeter
 As peak clippers
 For meter protection

5. 5
Voltage Regulation
 Voltage regulation is a measure of a circuit’s ability
to maintain a constant output voltage even when
either input voltage or load current varies
 Zener diode, working in reverse biased, can serve
as voltage regulator

6. 6
Voltage Regulations


7. 7
Voltage Regulation


8. 8
How Voltage Regulation works?


9. 9
Voltage Regulations


10. 10
Examples
 Solve Examples 15.4, 15.5, 15.6