BK Precision 1711 Power supply
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0-60V, 0-2A DC POWER SUPPLY
The B+K Precision Model 1711
DC Power supply
is a high
quality general purpose dc power source. The Power supply
provides 0-60 volts dc output, adjustable with both coarse
and fine controls for precise settability. The current
output of the Model 1711
is 0-2 amps. Two current ranges,
High and Low, provide excellent current settability and
meter resolution. Two large panel-mounted meters
continuously monitor the output voltage and current.
The Power supply
exhibits excellent regulation and iow
ripple characteristics. The circuit design incorporates a
pre-regulator, which greatly reduces internal power
dissipation at low output voltages. The styling is both
attractive and functional. The mechanical configuration
conserves bench space and allows for easy portability.
The instrument may be used in constant voltage or constant
current applications. The crossover from constant voltage to
constant current modes is smooth and automatic. LED’s
indicate the “CV” (constant voltage) or “CC” (constant
current) mode of operation. In constant voltage
applications, a current limit may be preset. When load
variations cause the current to reach the preset limit, the
unit then regulates output
current rather than output voltage. Current limits are
adjustable from 5% to 100% of maximum. In constant current
applications, the maximum voltage may be preset. When load
variations cause current to drop below the regulated value,
the unit reverts to regulated voltage operation at the
Reverse polarity protection prevents accidental damage to
the Power supply
from improper connection to an external
voltage, and current limiting protects the equipment being
powered, as well as the Power supply
The output is isolated from chassis and earth ground, which
permits full flexibility of connections. When needed, the
(+} or (-) polarity may be strapped to ground, or either
polarity may be floated to an external voltage. Two supplies
may be connected in series as a 0-to-120 voit power source,
or two supplies may be connected in parallel, with suitable
balancing resistors, for up to twice the output current.
The Power supply
is well suited for a wide variety of
electrical and electronics applications, including service
shops, engineering labs, production testing, school
laboratories, and home use by hobbyists.
Continuously variable over 0-to-60 volt range with coarse
and fine controls.
O-to-2 amps available. Rated for continuous duty at full
Excellent regulation, low ripple.
CONSTANT VOLTAGE OR CONSTANT CURRENT
Provides regulated dc voltage output or regulated dc current
output. Crossover is smooth and automatic.
TWO CURRENT RANGES
High-Low switch selects full output (0-2 A), or one quarter
output (0-0.5 A). Low range improves current settability and
meter resolution at lower current values. Switch
simultaneously selects range of adjustment and corresponding
Two large, easy-to-read meters continuously monitor output
voltage and current.
Act as pilot light and identify mode of operation.
Limits internal dissipation for higher reliability.
Either polarity may be floated or grounded.
Fully adjustable current limiting (from 5% to 100% of
maximum output current) protects circuit under test and the
REVERSE POLARITY PROTECTION
Prevents damage to Power supply
from external voltage of
Modem functional styling. Configuration conserves bench
space and aids portability. Logical, convenient layout of
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24 January 2017
TEST INSTRUMENT SAFETY ... inside
INTRODUCTION ... 3
FEATURES ... 4
SPECIFICATIONS ... 5
INDICATORS ... 7
INSTRUCTIONS ... 9
Hook-Up ... 9
Typical Constant Voltage Operation
Limit ... 13
Typical Constant Current Operation .
Constant Voltage/Constant Current Characteristic .
Connecting Two Power Supplies in Series
Connecting Two Power Supplies in Parallel .
General ... , ... 19
Electronics Design Lab
Battery Charging ...
Replacement ... 21
Line Voltage Conversion, International Units
Adjustments ... 21 1711
:Calibration ... 23
Service ... 23
WARRANTY SERVICE INSTRUCTIONS
... . 27
WARRANTY ... 28