415B
Section
1
ntroduction
& Specifications
1-1.
INTRODUCTION
1-2. General
Description
1-3.
The
Model 415B High
Voltage Power Supply is
a
stable
well regulated source
of dc voltage.
The Model
415B
is
capable of providing 0
to 3100 volts dc
and
0
to
30
milliamperes current. The
output voltage is
adjust-
able in steps
of
500, 100,
10 and 1 volt by
front panel
step
switch controls. A
vernier control
provides a
means
of fine adjustment
within the one volt steps.
Out-
put power is available from
both a front
and rear panel
high
voltage
connector, type UG931/U.
Output
voltage
polarity may be
switched by a
front panel
control to
provide either
a positive or
negative output with
respect
to
chassis
ground of the
instrument.
1-4. The
power supply is
provided
with
an
overcurrent
protection
circuit to
prevent damage to the
instrument in
the event
of
overload
or
accidental short
circuit at the
output.
Normal operation
is quickly
restored by
a
manual
reset control
following
removal of the
overload.
1-5.
The
Model
415B
combines the best
features
of
electron tubes
and solid
state
components in a
hybrid
circuit. The
improved
reliability
and temperature
stability
characteristics of silicon
transistor
amplifiers
and
rectifier
diodes together
with the high
voltage hand-
ling
characteristics
of vacuum tubes
provide a
depend-
able,
low
noise level, highly
regulated
output. Applica-
tions
of the
Model
415B
include
calibration
of voltmeters
and
powering
of
photomultiplier tubes,
high voltage
klystrons
or other
devices
with current
requirements
up
to
30
milliamperes.
1-6.
ELECTRICAL
SPECIFICATIONS
OUTPUT VOLTAGE
Adjustable
from 0 to
±3100
volts dc.
OUTPUT CURRENT
0
to 30 milliamperes.
OUTPUT POLARITY
Positive
or negative
with
respect to ground
(the polarity
is controlled by a front panel switch).
LOAD REGULATION
0. 0005%
or 5 millivolts (whichever
is
greater) from
a
no load
to
a full load change in output current.
LINE
REGULATION
0.
0005%
or 2
millivolts (whichever is greater)
for a
10%
line change
from nominal,
STABILITY
±0,
0020%
per hour; ±0.
01%
per day
after warmup
period
and
constant line voltage, constant
load and constant
temperature.
RIPPLE
Less than 100 microvolts
RMS; less than
1 millivolt
peak-to-peak.
RESOLUTION
5 millivolts.
CALIBRATION ACCURACY
±0.
25%
or
100
millivolts (whichever is greater) with,
vernier at zero.
RESETABILITY
±0.
05%
or
50 millivolts.
RECOVERY TIME
Within 50 microseconds.
OVERCURRENT PROTECTION
Adjusted to
disconnect
output
at
nominally
30 milliamperes
±10% load
current.
Manual
reset.
WARMUP TIME
60
minutes to
meet specifications.
INPUT
POWER
100/115/230
volts
ac
±10%,
50
to 60 Hz,
approximately
300
volt-amperes
at full
load
output.
Rev. 2
1-1
To Next Page
Loading...