Graymark 803 - FILTER CIRCUIT EXPERIENCE; Capacitor Filter Functionality; Filter Circuit Construction

FILTER
CIRCUIT
EXPERIENCE
DISCUSSION
Since
most
electronic
equipment
recuires
a
smooth DC
voltage
for proper
operation,
the
outpirt
of a
rer.tifier
can-
not
be
applied
directly
to the
ecluipnrent.
YoLrr ,\loclel
80j
Power
Supply
uses
a capacitance
Ii Iter
circuit
to smooth
out
the
pulsations.
ln
this circuit,
the capacitor
acts
similar
to a
storage
tank. lt
stores
an elecirical
voltage
r,vhen
the rectilier
output
voltage is
high
and
discharges
'when
the
rectifier
voltage
drops. This
has
the
eficct
oi
li.tttening
out
lhe
peaks
of the
pulses
and
filling
in
the
valleys
betr,veen
them. This
results
in
a relatively
smooth
DC voltage.
(Refer
to
Fig.
ll
.)
CONSTRUCTION
-
1.
Solder
the POSITIVE
lead
of
filter
capacitor
-'
100
7,F
35VDC,
electrolytic, to bus wire A, anc
--
NECATIVE
(-)
lead
to bus wire C, as shoi^,
-
-
Fis
N
-
2. This
completes the
construction of the fi Iter
cr:
Have instructor initial
your
Progress
Cuide.