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SFA Series

Model: SFA Series
Voltage: 60V - 160V
Current: 31A - 500A
Power: 5kW - 30kW
Overview: High Slew Rate Current Source
  • Overview +

    Sorensen SFA Series

    Sorensen SFA Series Overview
    The SFA family builds on the industry leading Sorensen SGA series to provide a high power current source for laser diode applications. State of the art high power laser diodes require well-regulated current control to avoid catastrophic damage. Under anomalous operating conditions, excessive stored energy in the output circuit of the power supply can result in peak stresses that can permanently damage the device. Providing a constant current regulation mode only, the SFA’s low stored energy output minimizes damage potential for sensitive devices as well as enabling a current slew rate of up to 400 A/msec.

    Voltage 5kW 10kW 15kW 20kW 25kW 30kW
    0 - 60V 0-83A 0-167A 0-250A 0-333A 0-417A 0-500A
    0 - 100V 0-50A 0-100A 0-150A 0-200A 0-250A 0-300A
    0 - 160V 0-31A 0-63A 0-94A 0-125A 0-156A 0-188A
    Features And Benefits
    Key Features
    • High Power Density: Up to 15 kW in a 3U / 30 kW in a 6U chassis
    • Wide Voltage Range: 0-40V up to 0-600V, in increments of 5 kW from 5 to 30 kW
    • Fast Load Transient Response: Protection from undesired voltage excursions
    • Low RMS and P-P Noise: Suitable for the most sensitive applications
    • Parallelable up to 150 kW: Expandable as your requirement grows
    • Modular Design: Upgradeable for the ultimate in investment protection
    • Sequencing: Program custom waveforms
    • Easy-to-read Fluorescent Display: SGI supports English, French, German, Italian, Spanish, Chinese, Japanese, and Korean languages
    • 16-bit Resolution: Optional IEEE-488.2 + RS-232C + Ethernet provides precise control
    • Ethernet Control: LXI Class C compliant communication through integrated web server
    • Direct Relay Control: Control output and sense isolation relays, along with polarity relays. (Ethernet Option Only)
    • Hardware Trigger: Ethernet Option Only
    • 5 Year Warranty

    Process Control
    Whether you are controlling ion beams for the manufacturer of semiconductors, or driving a solution for precise control in a plating process, the SG series is an ideal choice with it’s small size, reliable modular design and standard analog programmability. Direct control of V and I along with 0-10V outputs allowing monitoring of the actual voltage and current, provides a simple interface for your PLC or other type of analog controller.

    Product Development
    Testing & Burn-in DC-DC converters, laser diodes, automotive and semiconductor components and aircraft flight hardware are just a few of the items being tested using the SG product family. From simple front panel control to complex test sequences for compliance testing, the SG series will grow with your product needs.

    A research environment presents some of the most demanding requirements on your test instrumentation. Equipment that is sufficient today, may not meet the needs of the next project. With the SG series this is no longer a problem. The modular design allows you to easily upgrade to higher power levels in the future, or parallel units to achieve up to 150 kW. With the sophisticated sequencing capability of the SGI model, you can build an infinite variety of test or diagnostic programs and have them execute directly from the power supply.

    Automotive Component Test
    The 16-bit resolution of the Ethernet programming and hardware triggering allows for detailed sequencing associated with battery fluctuation simulation. The tight load regulation capability of the SG series makes it a superior source for validation and acceptance testing and burn-in of automotive components. The 40V models, in particular, provide a full range of testing to simulate battery conditions. Margin testing of 12V and 14V nominal components, such as electronic control units (ECU) and electromechanical components, is easily achieved.

    Rackmount ATE Systems
    The high power density of the SG series makes it ideal for ATE System integration. The wide variety of voltage and current combinations in 3U and 6U heights allows multiple voltage outputs in a small amount of space. The wide variety of control methods possible, allows easy integration into legacy systems as well as high speed systems.

    Battery Charging
    The SG series provides high accuracy voltage output to optimize battery charging. Battery charging requires high accuracy voltage and stable current output for fast bulk and absorption phase charging and high accuracy and stable voltage for float charging to avoid “gassing” the battery. With the remote interface options, the charging process can easily be automated for volume production.

  • Specifications +

    Sorensen SFA Series Specifications (at nominal AC line and 25ºC)
    Electrical Characteristics
    Control Mode Current Control
    Front Panel Meter Accuracy Voltage ±0.5% of full-scale + 1 digit
    Current ±0.5% of full-scale + 1 digit
    Load Regulation (no load to full load, nominal AC input) Current 0.1% of rated output current
    Line Regulation (±10% of nominal AC input) Current 0.05% of rated output current
    Current Ripple 1% p-p of full-scale current
    Transient Response Output current recovers to within 1% of current setpoint within 1ms for a 10 to 100% or 100% to 10% step load change
    Output Slew Rate (10-90% resistive load) 250A/ms (400A/ms typical) rise, 200A/ms typical fall; 160V model 87A/ms/5kW (145A/ms/5kW typical), 60A/ms, typical, fall
    Output Capacitance 60V Models: <2µF
    160V Models: <3µF
    Stability ±0.05% of setpoint after 8–hr. warm-up at fixed line, load, and temperature using remote sense
    Power Factor >0.9 typical for 208/220VAC input
    >0.78 typical for 380/400VAC input
    >0.7 typical for 440/480VAC input
    Remote Analog Control

    Current Setpoint Accuracy ±0.8% of full-scale output
    ● Overcurrent Protection ±1% of full-scale output
    ● Resistive Control 0–5 kW = 0-100% Current
    ● Voltage Control 0–5 or 0–10 VDC = 0-100% Current
    ● Overcurrent Protection 0–5.5 VDC = 0-110%

    Efficiency 87% typical at full load, nominal line
    Remote Control/Monitor On/Off control via contact closure, 6-120 VDC or 12-240VAC, and TTL or CMOS switch, current monitor, OCP limit set, summary fault status
    Overvoltage Protection Fixed at approximately 110% of the rating compliance voltage. Reset requires cycling the front panel standby power switch off/on
    Isolated Analog Control (option)
    Input to Output Isolation: 500 V
    Compliant with maximum terminal float voltage.
    Recommended operation under SELV normal conditions.
    Environmental Characteristics
    Ambient Operating Temperature 0 to 50°C
    Storage Temperature -25 to 65°C
    Temperature Coefficient Current Setpoint 0.03% / °C of rated current
    Cooling Internal Fans. Zero clearance stacking
    Humidity 0 to 90% at 40°C; 0 to 50% at 25°C non-condensing
    Altitude Full power at 5,000 feet, 10% derating of full power for every 1,000 feet above 5,000 feet
    Regulatory Certified to UL/CSA 61010 and IEC/EN 61010-1 CE Compliant (LVD and EMC Directives)
    Input Power Options
    Configuration 3–phase, 3–wire plus ground. Not phase rotation sensitive. Neutral not used
    Voltage Selection 208/220 VAC±10%, 47 to 63 Hz
    380/400 VAC±10%, 47 to 63 Hz
    440/480 VAC±10%, 47 to 63 Hz
    Up to 15kW in 3U 19.00in W x 25.12in D x 5.25inH; 80 lbs. (48.3cm W x 63.8cm D x 13.3cm H; 36 kg)
    15 - 30kW in 6U 19.00in W x 25.12in Dx 10.5in x H; 160 lbs.
    (48.3cm W x 63.8cm D x 36.7cm H; 73 kg)
  • Diagram +

    Sorensen SFA Series Diagram

    Diagram Formats
    PDF SG Diagram (1064KB)
    SG40V & New SG Back Panel Diagram PDF
  • Manuals +

  • Data Sheets +

  • Get A Quote +

    SG : Model Number Description

    Options and Accessories
    Control Options
    A Analog
    I Intelligent
    Input Voltage Options
    C Input Voltage 187 / 242VAC
    D Input Voltage 342 / 440VAC
    E Input Voltage 396 / 528VAC
    Remote Control Options
    0A No Options
    1A IEEE-488.2 + RS-232C (RS-232 comes standard on SGI
    1C Ethernet / RS-232
    1D Isolated Analog Control
    2A Combined Options 1A + !D
    2G Combined Options 1C + 1D
    1E Shaft Locks ( SGA series only )
    Process options
    AA No Options
    AB Certificate of Calibration ( Includes Test Data )