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EE182 Basic Electronics
Lecture # 11
2

Zener Voltage

3

Zener Biasing

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

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

Voltage Regulations

7

Voltage Regulation

8

How Voltage Regulation works?

9

Voltage Regulations

10

Examples
 Solve Examples 15.4, 15.5, 15.6

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