Tektronix FG 5010 User Manual

Theory of
Operation
- FG
5010
+ 26V
FROM
POWER
MODULE
4-44
FILTER
25VAC FROM
POWER MODULE
25VAC
FROM
POWER
MODULE
-26V
FROM
POWER
MODULE
FILTER
+ 8V FROM POWER MODULE
+ 12V
REGULATOR
-12V
REGULATOR
-5V
REGULATOR
+ 5V
REGULATOR
The change in load current thus generated restores the
regulator output
to a nominal
+5.05 V. This
maintains
+5 V on the
circuit
boards
,
allowing for a small
voltage
drop
across the connectors .
Resistors R1411 and R1424 connect the +5 V and
ground lines to the +5 V sense and return lines in the event
that the board is operated while removed from the
Interconnect board . If such
occurs , the
output
voltage rises
+ 16V
REGULATOR
+ 35V
REGULATOR
-35V
REGULATOR
Fig . 4-19 .
Power
Supplies
block diagram .
-16V
REGULATOR
FILTER
FILTER
+
26V
F
+
12V
1
+
12V
2
+
16V
+
35V
-35V
-16V
-12V 1
-12V
2
-26V
VE
+
5V
3467-25
to about +5.15 to +5.2 V , due to the voltage drops across
R1411 and R1424 .
Current Limit Amplifier . This circuit consists of amplifier
U1432A , transistor Q1420 , and related components . The
purpose of
the
circuit is to
protect Q1511 ,
the
Driver Tran
sistor , in the case that the FG 5010 is installed into an ener
gized power module . If such occurred , the amplifier would
attempt to draw the entire supply current through Q1511 ,
which
would
likely exceed its
capacity .
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Tektronix FG 5010 Specifications

General

Brand	Tektronix
Model	FG 5010
Category	Portable Generator
Language	English