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Exp 06

The document outlines an experiment for studying half-wave rectifier circuits in an Electrical & Electronic Engineering Laboratory. It details the objectives, required materials, theoretical background, and procedural steps for constructing and analyzing the circuit. Additionally, it includes questions to assess understanding of the concepts related to the experiment.

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MD. ASHRAFUL ISLAM 1807013
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8 views2 pages

Exp 06

The document outlines an experiment for studying half-wave rectifier circuits in an Electrical & Electronic Engineering Laboratory. It details the objectives, required materials, theoretical background, and procedural steps for constructing and analyzing the circuit. Additionally, it includes questions to assess understanding of the concepts related to the experiment.

Uploaded by

MD. ASHRAFUL ISLAM 1807013
Copyright
© © All Rights Reserved
We take content rights seriously. If you suspect this is your content, claim it here.
Available Formats
Download as PDF, TXT or read online on Scribd
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Department of Petroleum & Mining Engineering

Course No. EEE 372


Course Title: Electrical & Electronic Engineering Laboratory

EXPT. NO: 06
NAME OF THE EXPERIMENT: STUDY OF HALF-WAVE RECTIFIER CIRCUITS.

OBJECTIVE:
To understand principle of diode in converting ac into dc and to study different
diode rectifier circuits.

MATERIALS REQUIRED:

p-n junction diode(1N4007) four piece


5V zenner diode one piece
resistor (1K, 10k) one piece
capacitor ( 10F, 1F, 47F) one piece
signal generator one piece
oscilloscope one piece
chords and wire lot
Trainer board
Multimeter

THEORY:

The diode rectifier converts the input sinusoidal voltage Vs to a unipolar output Vo.
There are two types of rectifier circuits: (i) Half-wave rectifier and (ii) Full-wave
rectifier.

Half-wave rectifier:

The circuit of a half-wave rectifier is shown in Fig. 1.

Vo ac
+
1K Measure by Multimeter
10V p-p
+ Ch2
Ch1 - AC & DC Mode
1K Hz - Vo dc

Fig. 1 Circuit diagram for half wave Rectifier.

The input and output of the rectifier are drawn in Fig. 2. Diode conducts only when it
is forward biased. For Vs = Vm sint, DC voltage and current of a half wave rectifier
are as follows

VDC= Vm/ - (1/2)VDO


IDC=(Vm/ - (1/2)VDO)/R

Page 1 of 3
Where, VDO  0.7 V.

Fig.2

PIV (Peak Inverse Voltage) PIV is the peak reverse voltage that appears across the
diode when it is reverse-biased. PIV = Vm

PROCEDURE FOR Half-wave rectifier:

1. Construct circuit of Fig.1 without the capacitor. Observe Vi and Vo simultaneously


On the oscilloscope. Sketch input and output waveforms. Measures Vo with
multimeter in dc and ac mode.

2. Connect 1F capacitor across the load resistor. BE CAREFUL about the polarity
of the capacitor. Sketch input and output waveforms. Measure Vo with multimeter.

3. Replace 1F Capacitor with 47F and repeat step 2.

QUESTIONS:

1. What is the effect of capacitor?


2. Which capacitor acts as a better filter? Explain your answer.
3. What is PIV?

Page 2 of 3

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