Power Amplifier - BWD MINI-LAB 603B Manual

6.
CIRCUIT DESCRIPTION:
6.1
The complete
circuit of
Model
BWD
603B
is
divided
into three discrete
drawings.
The numbers and contents are
listed
below:-
Drg.
No.
1358
Drg.
No.
1357
Triangle
and Square
Wave
Generators, Sine
Wave
Shaper.
Amplitude Modulator, Output
Amplifier,
Ramp Generator, Variable
0-200V
Power Supply.
Drg.
No.
1355
Power Amplifier/Bi-Polar Power Supply/5V Supply
Voltage/Operational Amplifier
±15V
Regulated Variable Power
Supplies
Internal
Power
Supplies
The
circuit description will
be
in
the
above
order
and
for
ease
in
finding
any
one Section, the Index
below
may
be used
SECTION DESCRIPTION PAGE
6.2
6.3
6.4
6.5
6.6
6.7
6.8
6.9
6.10
6.11
6.12
6.13
Triangle
and Square
Wave
Generators 6.0
TTL Output
6.2
Sine
Wave
Shaper
6.2
Amplitude Modulator
6.3
Output
Amplifier 6.3
Ramp Generator
6.3
Variable
0-200V
Power
Supply 6.4
Power
Aniplifier/Bi-Polar
Power Supply/5V
Supply
6.4
Voltage/Operational Amplifier 6.4
+ and -15V Regulated, Variable Power
Supplies
6.5
+
and
-15V Regulated, Fixed
Internal Supplies
6.5
Power
Rectifiers
and
Filters
6.5
6.2
Triangle
and Square
Wave
Generators: (Drg.
No.
1358)
Both the
triangle
and
square
waves
are
generated
simultaneously, the square
wave
being used
to
switch the
current sources used
to
generate
the triangle,
and
the triangle used via a comparator
to
produce
a square
wave.
The
block diagram on the next
page
shows the interconnection of the various
parts.
6-0
603B