Transcript Half-Wave Rectifier

Wel-come
SWAMI SACHCHIDANAND POLYTECHNIC
COLLEGE, VISNAGAR
Prepaid by :Oza Akshay V.
Modi Vishal J.
Panchal Rajesh P.
Mansuri Sohil I.
Patel Dhruv A.
Guided by:Miss.H.V.Momin
Half-Wave & full wave
Rectifier with filter
circuit
Group Members
 Oza
Akshay
 Modi vishal
 Panchal Rajesh
 Mansuri Sohil
 Patel Dhruv
106500309046
106500309047
106500309063
106500309049
106500309071
Rectifier
The rectifier converts the ac input
voltage to a pulsating dc voltage
There are two types of rectifier.
1.
2.
.
Half-wave rectifier
Full-wave rectifier
Half-Wave Rectifier



When
a
diode
is
connected
to a source alternating voltage, it
will be of alternately forward-biased, and
then reverse-biased, during each cycle of
the AC sine-wave.
When a single diode is used in a
rectifier circuit, current will flow through
the circuit only during one-half of the
input voltage cycle.
For this reason, this rectifier
circuit is called a half-wave rectifier. The
output of a half-wave rectifier circuit is
pulsating DC.
Half wave rectifier
Wave form of Half wave rectifier
Full-wave Rectifier

The output of a
full-wave rectifier
is driven by both
the positive and
negative cycles of
the sinusoidal
input, unlike the
half-wave rectifier
which uses only
one cycle.
Full wave rectifier
Wave form of full wave rectifier
Power Supplies
Consist of:
1. Transformer – steps ac voltage up or
down.
2. Rectifier Diodes – change ac to
“bumpy” dc.
3. Filter Network – includes capacitors
and inductors, smooths out the bumps.
4. Voltage Regulator – keeps the voltage
constant.
5. Protection – usually a crowbar circuit.
Types of filter circuits:1.
2.
3.
4.
5.
Shunt capacitor filter
Series inductor filter
Choke input LC filter
Capacitor input LC filter and
Π filter
Shunt capacitor filter
Series inductor filter
Choke input LC filter
Capacitor input LC filter
Π filter
Important Concepts
• Half Wave Rectifier:
– Simplest.
– Hard to filter well.
• Full Wave Rectifier:
– Easier to filter.
– Requires transformer with center-tap.
– Transformer secondary must be twice
intended voltage.
thank you…………….