Lab
Title: Power diode single phase Bridge rectifier .
Objective: Our
main objective is to to
become familiar with the process of full wave
rectification using Bridge Rectifier.
Apparatus:
i.
Power
diode
ii.
Voltage
Source
iii.
Resisters
(220 ohm)
iv.
Inductor
(0.8H)
v.
Voltmeters
and Ammeters
vi.
Connection
cables
vii.
LV-DEC software for analysis.
Introduction:
The process of
converting alternating voltage to direct voltage at the output is known as
rectification.We are using four diodes in the form of a Bridge.During each half
cycle two diodes are active or in forward bias region.We also use the resistive
load first and the inductive load.
Procedure:
·
Install the power supply, the resistive
loads, the DC voltmeter/ammeter and the power diodes module in the workstation.
·
Make sure that the main power switch of
the power supply is set to 0. Set the voltage control knob to 0. Connect the
power supply to a three-phase wall receptacle.
·
Plug the Power supply line cord into a
wall receptacle. Set the rocker switch
of the power supply to the 1(on position).
·
Make sure that the toggle switches on the
resistive Load are all set to the 0.
·
In the last observe the three phase
waveform, and measure the output parameters.
Precautions:
1. Make
sure that the main power switch of the power supply is set to the 0 (OFF)
Position.
2. Make
the circuit neat and clean.
3. Make
sure that the toggle switches on the resistive load are all set to the 0 (open)
positions.
4. Take
the reading very carefully.
Circuit diagram: (Resistive Load)
Circuit diagram: (Inductive
Load)
|
Load
|
Output voltage
|
Output current
|
Output
Frequency
|
|
Resistive
|
189.43
|
0.85
|
100.6
|
|
Inductive
|
110.85
|
0.89
|
102.8
|
Conclusion:
We see the process of full wave rectification using bridge
rectifier under different loads.For both positive half and negative half cycle
diodes conduct the current and the output comes.
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