BK Precision 1790 High Current DC Power Supply

The BK Precision 1790 is a, programmable DC power supply designed for applications requiring stable and precise power. It has both constant voltage (CV) and constant current (CC) operation, with excellent regulation and low noise output, making it suitable for sensitive testing environments, particularly in the telecommunications industry. The unit works with bench or standard 19-inch rack operation and features a user-friendly interface with front panel controls for adjusting voltage and current.

Technical Specifications General

• Model: BK Precision 1790
• Product Type: High Current Linear DC Power Supply
• Output Power: 640 Watts
• Rack Mountable: Yes (standard 19-inch rack)
• Operation Mode: Constant Voltage (CV) and Constant Current (CC)
• Noise and Ripple: * CV Mode: < 1mV rms (20 Hz - 20 MHz) * CC Mode: 3 mA rms (20 Hz - 20 MHz)
• Stability (8 hours after warm-up): * CV Mode: ± 0.2% ± 10 mV * CC Mode: ± 0.5% ± 10 mA
• Operating Temperature: 32 to 104 °F (0 to 40 °C)
• Input Voltage: 120 VAC ±10%, 47-63 Hz (Note: 230 VAC input requires modification, requested at time of order for model 1790EXD)
• Dimensions (W x H x D): 19" x 5.24" x 15.75" (483 x 133 x 400 mm) Output Characteristics
• Voltage Output: 0-32 VDC
• Current Output: 0-20 ADC Constant Voltage (CV) Mode
• Line Regulation: < ±0.01% ± 2 mV
• Load Regulation: < ±0.01% ± 2 mV
• Response Time: 100 µsec to within 10mV of set output voltage for load change from 10% to 90% Constant Current (CC) Mode
• Line Regulation: < ±0.05% ± 10 mA
• Load Regulation: < ±0.05% ± 10 mA

Features and Functionality * CV/CC Operation: Automatically crosses over from constant voltage to constant current mode and vice versa if output exceeds preset limits.

• Remote Sensing: Compensates for voltage drop in load leads.
• External Analog Programming Interface: Allows for remote control and automation of settings.
• Presetting Output Limits: Facility for presetting the output voltage and maximum load current limits.
• Output ON/OFF Switch: Separate switch for controlling the DC output.
• Panel Meters: Front panel LED meters for monitoring voltage and current.
• Output Terminal Flexibility: Either positive or negative output terminal may be grounded or floated up to a maximum of ±300 VDC above ground.
• Low Noise Output: Critical for telecom applications where power supply noise can interfere with testing.

Interfaces * Front Panel: * Load Terminals * Remote Sense Terminals * Voltage and Current adjustment controls * LED Meters for Voltage and Current indication * Output ON/OFF switch * LIMIT switch for presetting voltage and current

Physical Characteristics * Form Factor: Benchtop or 19-inch rack mountable

• Enclosure: Designed for adequate ventilation during operation

Compatibility * Ideal for: Manufacturers building equipment for the telecom industry operating from 48V or higher DC rails, including base stations, switches, public and private telecom network equipment, PBX systems, and DC-to-DC power supplies. Why Choose Aumictech for the BK Precision 1790?

At Aumictech, we specialize in supplying test and measurement equipment. Whether you need reliable, precise DC power for sensitive electronic development, solid power for production line testing, or stable current for laboratory R&D, our team ensures the BK Precision 1790 delivers maximum performance and accuracy for your application.