1) The document describes a full wave bridge rectifier circuit with and without a filter capacitor. 2) It explains how the circuit works by using 4 diodes to convert an AC input voltage into a DC output voltage that only contains the positive half of the sinusoidal wave. 3) The summary compares the results with and without a filter capacitor, noting that the capacitor reduces the ripple in the output when used.

1. Topic : Full Wave Bridge Rectifier
(Simulation Model) Filter /Without Filter
Submitted to: Ravindra Meena Sir
( HOD Electrical dept.)
Submitted by : Jaspreet Singh
Ruchit Porwal
Adhiraj Singh
Electrical
Major Assignment

2. Table Of Contents
Result
How Circuit Works
Circuit
Components Used
Need of Rectifier

3. Need of Rectifiers
•Rectifier is used to convert AC signal to DC signal
•Almost all the electronic devices such as diodes, transistors, ICs, etc. Require
DC voltage for their proper operation
•It can be used as a substitute for source of DC voltage
•It is used in high current power supplies
•It is used in power supplies for many electronc circuits

4. Components Used
AC voltage source: 230V,
50Hz
Diodes: 4 - IN4007
Resistor: 10k ohms
Oscilloscope
Capacitor: 500 micro farads

5. Sinusoidal Voltage Source
The sine wave or sinusoid is a mathematical curve that describes a smooth
repetitive oscillation. It is named after the function sine, of which it is
the graph. It occurs often in pure and applied mathematics, as well
as physics,engineering, signal processing and many other fields.

6. Diodes
In electronics, a diode is a two-terminal electronic component that
conducts primarily in one direction , it has low (ideally
zero)resistance to the flow of current in one direction, and high
(ideally infinite) resistance in the other.

7. Resistors
A resistor is a passive two-terminal electrical component that
implements electrical resistance as a circuit element. Resistors may be used
to reduce current flow, and, at the same time, may act to lower voltage levels
within circuits

8. Oscilloscope
An oscilloscope, previously called an oscillograph, CRO (for
cathode-ray oscilloscope), is a type of electronic test instrument that
allows observation of constantly varying signal voltages, usually as a
two-dimensional plot of one or more signals as a function of time.
Other signals (such as sound or vibration) can be converted to
voltages and displayed.

9. Circuit
Without filter Capacitor

10. With Filter Capacitor
Circuit

11. How Circuit Works
When we run the simulation, only 2 diodes will conduct in each half cycle
and will give rise to a voltage waveform which doesn’t contains any
negative half of the original sinusoidal waveform.
After measuring using a probe, the rms voltage across the resistor is found
to be 6.88V. So 10V signal is converted to 6.88V signal without having
any negative cycle. Rest of the voltage i.e. (10-6.88) = 3.12V is the
voltage drop across the diodes. Voltage drop across each diode is 1.56V.
But in practical dc application, we can’t use a DC with such a
heavy ripples. So to reduce theripples, we can make use of capacitors.

12. (Without capacitor filter)
Results

13. (With capacitor filter)
Results

14. Conclusion
•In full wave bridge rectifier circuit when capacitor filter
is used then it reduce the current ripple in the output of
the rectifier which is not seen in the full wave bridge
rectifier circuit without filter.
•While when capacitor filter is not used then the full
wave bridge rectifier just acts as a normal rectifier giving
a complete positive output source of the given wave
form, converting negative half cycle to positive.