QUESTIONS: 1. What could happen if the Zener diode would be changed to a Zener which has a higher breakdown voltage? 2. What is the breakdown voltage of zener diodes? 3. Explain the differences between the zener diodes and normal diodes?
QUESTIONS: 1. What could happen if the Zener diode would be changed to a Zener which has a higher breakdown voltage? 2. What is the breakdown voltage of zener diodes? 3. Explain the differences between the zener diodes and normal diodes?
Introductory Circuit Analysis (13th Edition)
13th Edition
ISBN:9780133923605
Author:Robert L. Boylestad
Publisher:Robert L. Boylestad
Chapter1: Introduction
Section: Chapter Questions
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Transcribed Image Text:EXPERIMENT 4
ZENER DIODES
EQUIPMENT REUQIRED:
Power supply unit
1 Multimeter
1500 resistor, 2700 resistor
Zener diode
EXPERIMENTAL PROCEDURE:
1. ZENER DIODE CHARACTERISTICS
a) Record the measured value of resistance R. Construct the circuit of Fig.3.3. Initially set DC supply
to 0 V. Set the DC supply Vs to the values on Table 3.3 and measure both Vz andVR. Calculate the
Zener current lz.
R=1500
A Zener Diode
Vs
Figure.4.1
Table 4.1
10
Vs (V)
Vz (V)
VR (V)
Iz (mA)
1
2
3
4
5
6
7
8
9
b) Plot the curve Iz vs. Vzin the Zener diode region.
2. PARALLEL ZENER DIODES
a) Set up the circuit in Figure 3.2.
b) Set the sinusoidal supply to 1V, 50HZ.
c) Switch on the oscilloscope and the sinusoidal supply.
d) Observe the clipped wave of Vo, try to understand the logic behind the result.
e) Set the sinusoidal supply to 5V, 50HZ, and repeat the step a to d.
Transcribed Image Text:Vo
150K
Figure.4.2
QUESTIONS:
1. What could happen if the Zener diode would be changed to a Zener which has a higher
breakdown voltage?
2. What is the breakdown voltage of zener diodes?
3. Explain the differences between the zener diodes and normal diodes?
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