B&K Precision 1790, 1791 Data Sheet
16
1790
1791
Model 1790, 1791
High Current DC Power Supply
Models 1790/1791 are cost effective, high power, regulated DC
power supplies with 640 Watt output. They are linear high current
DC power supplies suitable for bench operation or standard 19" rack
operation. These linear power supplies are high power workhorses
that will easily deliver clean power to your high-current circuits.
Ideal for telecom application
Since noise elimination is critical for telecom application, the 1790 &
1791 DC power supplies offer low noise output, so that power supply noise does not interfere with testing of telecom devices. The
1790 & 1791 are ideal for manufacturers who build equipment for
telecom industry that operates from 48V or higher DC rail such as:
base stations, switches, public and private telecom network equipment, PBX system and DC to DC power supplies that provide power
to this equipment.
These well-regulated constant voltage/constant current supplies deliver 0-32V at 0-20A (Model 1790) or 0-64V at 0-10A (Model
1791). They can be adjusted continuously throughout the output
range by front panel controls. The units will automatically cross over
from constant voltage to constant current mode and vice-versa if the
output exceeds preset limits. Front panel LED meters are provided for
monitoring voltage and current. The load terminals and remote sense
terminals are located on the front panel. Either the positive or negative output terminal may be grounded or floated up to a maximum of
±300VDC above ground.
Special features include the ability to set constant current with no
load and remote sense to compensate for any wire loss. The 1790
and 1791 are designed to meet CE specifications and have superior
performance to comparable models costing 20 to 30% more.
■ Constant Voltage/Constant Current Operation
■ Remote Programming Facility
■ Facility for Presetting the Output Voltage and Max.
Load Current Limits
■ Separate DC Output ON/OFF Switch
■ Remote Sensing Facility
■ High Stability and Close Regulation ±0.01%
■ Meet CE Specifications
Output (DC) 0-32V 0-64V
Output Current (DC) 0-20A 0-10A
Constant Voltage Mode
Line Regulation (120V±10%) ±0.01% ± 2mV
Load Regulation ±0.01% ± 2mV
Ripple and Noise <
1mV rms max
Constant Current Mode
Line Regulation (120V±10%) ±0.05% ± 10mA
Load Regulation ±0.05% ± 10mA
Ripple and Noise 6mA rms Max
Overload Protection Constant current type
Stability ± 0.2% ± 10mV in CV mode
± 0.5% ± 10mA in CC mode
Operating Temperature 32° to 104°F (0° to 40°C)
Power Requirement 120/230V, 60 Hz ±10%
Dimension (W x H x D) 19 x 5.25 x 15.75" (483 x 133 x 400mm)
Weight 62 lbs. (28.1 kg)
Specifications
models
1790 1791
SUPPLIED: User Manual
OPTIONAL: TL-30 Hook up leads
Two Year Warranty
Accessories
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