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1. Part of Made in India,
Design Innovation
Workshop,2015
A
Fresh
New
Experience
in
Project-­‐Making
&
Learning!

2. PHYSICSINVESTIGATORY
PROJECTON
FULLWAVEBRIDGERECTIFIER

3. A
Full
wave
bridge
recAfier
is
an
electrical
circuit
where
four
diodes
are
arranged
in
the
form
of
a
bridge.
It
converts
a
household
AC
signal
into
a
DC
signal.
It
has
various
other
applicaAons
like
it
detects
the
amplitude
of
a
modulated
radio
signal
and
is
also
used
to
supply
polarized
voltage
in
welding.
In
this
project,
a
full
wave
bridge
recAfier
is
made
using
a
breadboard,
one
transformer
(12
V
AC),
one
resistor,
four
diodes
and
a
few
connecAng
wires.
The
connecAons
are
made
such
that
a
bridge
type
arrangement
of
the
four
diodes
is
made.
ARer
the
compleAon
of
the
circuit,
the
transformer
is
connected
to
a
220V
AC
source
and
the
power
supply
is
switched
ON.
The
‘path
of
current’
analysis
was
done
in
the
posiAve
and
negaAve
half
cycles
of
the
input
voltage.
The
stepped
down
input
AC
voltage
was
calculated
across
the
points
where
the
output
wires
of
the
transformer
were
connected.
The
voltage
across
the
load
resistor
was
also
measured,
this
voltage
is
the
recAfied
output
DC
voltage
(VO)
produced
by
the
bridge
recAfier.
The
output
voltage
was
calculated
theoreAcally
using
KVL
(Kirchhoff’s
voltage
law)
by
using
the
ideal
voltage
drop
across
the
diodes
and
the
input
voltage.
Both
the
voltages
values
were
compared
and
the
relaAve
error
was
calculated.
Since
this
bridge
type
arrangement
produces
a
posiAve
voltage
output
during
both
the
posiAve
and
negaAve
half
cycles
of
the
AC
signal,
it
is
called
a
bridge-­‐wave
recAfier,
and
the
process
is
called
full-­‐wave
recAficaAon.

4. Have
a
look
at
what
we
provide
in
our
Project
Kit!
CoolJunk
is
India's
fastest
growing
DIY
(do-­‐it-­‐yourself)
kits
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focused
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Having
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East
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the
CoolJunk
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innovaAon
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CoolJunk
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naAonal
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internaAonal
journals
including
Wallstreet,
Yourstory,
Hindu
Business
Line,
NextBigWhat
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coolest
Indian
start-­‐up
in
IAN
Bootcamp-­‐2011.
For
more
projects
visit
our
website:
CoolJunk
All
tools
and
components
in
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box.
Step
by
step
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instrucAons
Detailed
experiment
theory
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