Type 6042
SECTION
3
CIRCUIT DESCRIPTION
Change
information,
if
any, affecting
this section is found at the rear of the manual.
In
this
section
you
will
find
descriptions
of
the
circuitry
in
the
power
supply,
the
current
probe,
and
the
current
probe
amplifier.
The
amplifier
is
divided
into
three
functions:
low-
frequency
amplification,
high-frequency
amplification,
and
probe
degaussing.
POWER
SUPPLY
The
power supply
provides
the
power
for
the
P6042
from
two regulated
supplies,
+16
volts
and —
16
volts. Elec
tronic
regulation is
used
to provide
stable
output
voltages.
Switches
on
the
rear
panel
change
the
connections
to
the
primary
of
the
transformer for
115
volts or
230
volts,
as
well
as
for
low,
medium
or
high line.
Power
is
applied
to
the
transformer
primary through
the
power
plug
(P141),
the
power
switch
(SW141)
and
the
fuse
(F141).
F142
is
switched
in
for
230-volt
operation
only.
The
secondary
of
the
power
transformer
has
two
windings,
one
for
the
+16-volt
supply,
and
the
other
for
the
—16-volt
supply.
The
60-Hz
line
voltage is
full-wave
rectified
by
D
1
51
in
the
+16-volt
supply,
and
by
D
1
71
in
the
—
16-volt
supply.
C1
52
and
C1
72
provide
filtering
for
the
respective
regulated
supplies.
+16-Volt
Supply
QI
56
provides
constant
current
for
the
collector
of
Q1
67,
and
R157
provides
a
small
amount
of
feedback
to
null
the
ripple
at
the
output
of
the
supply.
(A)
Positive-going
voltage applied
to circuit
under
test.
(B)
Negative-going
voltage
applied to
circuit
under
test.
Fig.
3-1.
The
polarities
of
the
waveform
at
the
output
terminals
of
the
Hall
device
are
determined
by
the direction
of
current
flow
in
the
conductor.
3-1
Summary of Contents for P6042 PROBE
Page 3: ......
Page 4: ...Characteristics Type P6042 Fig 1 1 P6042 Current Probe and accessories...
Page 7: ...Characteristics Type P6042 1 3...
Page 8: ...Characteristics Type P6042 1 4...
Page 10: ...Operating Instructions Type P6042 Fig 2 2 Function of front panel controls and connectors 2 2...
Page 28: ...NOTES...
Page 30: ...Calibration Type P6042 Fig 6 1 Test equipment recommended 6 2...
Page 46: ...NOTES...
Page 64: ...HE RMAL COUPLER SEE PARTS LIST FOR SEMICONDUCTOR TYPES AMPLIFIER MRH S...
Page 65: ...P 6 042 CURRENT PROBE DC TO 50MHz...
Page 66: ...FIG 1 P6042 PROBE PACKAGE STANDARD ACCESSORIES P6042 PROBE...
Page 67: ...FIG 2 P6042 PROBE MECHANICAL PARTS...
Page 68: ...FIG 3 AMPLIFIER PO...
Page 69: ...3 AMPLIFIER POWER SUPPLY P6042 PROBE...
Page 70: ...FIG 4 CABINET...
Page 71: ...FIG 4 CABINET P6042 PROBE...
