DC current source SFA

programmable

Overview
The SFA family extends a high-power DC constant-current platform tailored for laser diodes and other sensitive devices. It provides constant-current regulation only, reduced stored output energy to limit device damage, and a current slew rate up to 400 A/msec.

Summary Table
Model: SFA Series
Voltage: 60 V – 160 V (typical examples)
Current: 31 A – 500 A (depending on configuration)
Power: 5 kW – 30 kW
Overview: High Slew Rate Current Source

Ratings
Power: 5 kW | 10 kW | 15 kW | 20 kW | 25 kW | 30 kW
0–60 V: 0–83 A | 0–167 A | 0–250 A | 0–333 A | 0–417 A | 0–500 A
0–100 V: 0–50 A | 0–100 A | 0–150 A | 0–200 A | 0–250 A | 0–300 A
0–160 V: 0–31 A | 0–63 A | 0–94 A | 0–125 A | 0–156 A | 0–188 A

Features and Benefits

• High power density: up to 15 kW in a 3U chassis and up to 30 kW in a 6U chassis
• Wide voltage range and modular power increments: models available in 5 kW steps from 5 to 30 kW
• Fast load transient response to protect against undesired voltage excursions
• Low RMS and peak-to-peak noise suitable for sensitive applications such as lasers

Key Operational and Control Features

• Parallelable DC output — scalable to ~150 kW by paralleling units
• Modular, field-upgradeable design for investment protection
• Programmable sequencing for custom waveforms and automated test routines
• Easy-to-read fluorescent display with multi-language support
• Optional 16-bit resolution with IEEE-488.2 (GPIB), RS-232 and Ethernet control
• Ethernet (LXI Class C) with integrated web server — hardware trigger and direct relay control options available
• 5-year warranty

Applications

• Laser diode drive — low stored energy and fast slew protect sensitive emitters
• Process control — ion-beam systems, plating and precision current control
• R&D and product testing — DC-DC converter testing, burn-in, semiconductor and automotive component verification
• Automotive component test — precise sequencing and 16-bit Ethernet control for battery fluctuation simulation
• Rackmount ATE systems — high power density and flexible voltage/current combinations for integration
• Battery charging — accurate voltage and stable current for bulk, absorption and float stages

Options and Accessories (selected)
Control Options: A = Analog | I = Intelligent
Input Voltage Options: C = 187/242 VAC | D = 342/440 VAC | E = 396/528 VAC
Remote Control Options: 0A = No Options | 1A = IEEE-488.2 + RS-232C | 1C = Ethernet + RS-232 | 1D = Isolated Analog Control | 2A = 1A + 1D | 2G = 1C + 1D
Process Options: AA = No Options | AB = Certificate of Calibration (includes test data)

Technical specifications

• Model: SFA Series
• Voltage ranges: examples 0–60 V, 0–100 V, 0–160 V (family supports wider ranges)
• Current ranges: up to 0–500 A depending on power and voltage configuration; 160 V models typically 31 A–188 A
• Power: 5 kW to 30 kW per unit (3U up to 15 kW, 6U up to 30 kW)
• Current slew rate: up to 400 A/msec
• Regulation mode: Constant current only (low stored energy output)
• Parallel capability: scalable to ~150 kW
• Modularity: field-upgradeable modules for higher power
• Interfaces: Analog, IEEE-488.2 (GPIB), RS-232, Ethernet (LXI Class C) with integrated web server; hardware trigger and direct relay control options with Ethernet
• Resolution: optional 16-bit
• Warranty: 5-year
• Options: multiple input voltage and remote-control option codes as listed above