SLx Series
Programmable DC Power Supply
Building on over 40 years of power supply innovation and with over 26,500+ different model configurations, the SLx Series is Magna-Power’s most versatile programmable DC power supply series ever created. The SLx Series offers models at 6 different power levels, with highly granular range of voltages and currents. With industry-leading power density, rugged current-fed power processing, and the state-of-the-art MagnaLINK™ distributed DSP digital control architecture, the SLx Series meets the long-term DC power requirements of research & development, industrial automation, and process control applications.
- Voltage, current, and power control
- Rugged current-fed power processing
- 16-bit precision with single bit control
- SCPI and Modbus command sets
- Programmable protection features
- Interlock and hardware emergency stop
- Slew rate control
- Continuous full power operation up to 50°C ambient
- Configurable analog-digital 26-pin I/O port
- Digital-hybrid MagnaLINK™ master-slaving
- Local, remote, and leadless voltage sensing
- USB (front and rear) and RS485 interfaces standard
- CAN, EtherCAT, EtherNet/IP, LXI TCP/IP Ethernet, ModbusTCP, and PROFINET fully integrated communications options available
- MagnaCTRL software platform included
- Made in the USA
- Optional +HS: high Slew Rate (coming soon)

Key Features
MagnaLINK™ Distributred Digital Control
Magna-Power developed its MagnaLINK™ digital control platform from the ground up to utilize an array of four Texas Instruments DSPs distributed across various internal assemblies. High-speed board-to-board communications is achieved between DSPs utilizing an internally developed low-level communication protocol. A custom bootloader ensures long-term support with multi-target firmware updates and synchronization. New capabilities are achieved with the MagnaLINK digital architecture, some of which include: slew rate control, gain modification, 16-bit precision, 100 ppm stability, user-defined sequencing and function generation, and digital hybrid master-slaving.

Reliable Current-Fed Power Processing
All MagnaDC programmable DC power supplies utilize high-frequency IGBT- and MOSFET-based power processing in current-fed topology. This topology adds an additional stage over the conventional voltage-fed topology for enhanced control and system protection, ensuring that even under a fault condition, the power supply will self-protect. Due to the self-protecting characteristics of this topology, the possibility of fast rising current spikes and magnetic core saturation is eliminated. This topology coupled with state-of-the-art Silicon Carbide (SiC) power semiconductors enables the SLx Series to deliver class-leading power density, reliability and efficiency with continuous full-power operation up to 50°C ambient.

Standard Safety Features with Emergency Stop
The SLx Series features a soft-start circuit to eliminate large peak in-rush currents from the AC mains, ensuring AC current draw never exceeds the current draw at full load. The SLx Series programmable DC power supplies have extensive safety and diagnostic functions, including:
- AC Phase Loss
- Over Voltage Trip (Programmable)
- Over Current Trip (Programmable)
- Over Power Trip (Programmable)
- Cleared Fuse
- Over Voltage on Program Line Input
- Over Temperature on Internal Heatsink or Output Capacitors
- Internal Communications Fault
- Interlock and Emergency Stop Fault
When a fault is detected, the power supply immediately shuts down power processing circuit, utilizing the immediate one-shot trip (OSHT) zone event for inverter PWM channels. Users can easily identify faults using the Status message display or by SCPI/Modbus commands.
Finally, both interlock and emergency stop features are included as standard. The interlock feature provides a 5V interlock input, which when coupled with the provided 5V reference signal, allows for a dry contact to easily trigger a latching interlock fault, while maintaining control power. A separate emergency stop feature bypasses all logic and processors to provide a hardware-only path to easily interrupt AC power to the SLx Series power supply with a 24V signal, providing a full hardware shutdown.
Optional Module - DBx Module
The DBx module is a series add-on module for MagnaDC programmable DC power supplies, containing an ultra-high precision, high-stability temperature-stabilized control loop that monitors voltage and current to drive the power supply to perform any necessary error correction, providing high performance and ultra-low ripple.
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Available from 1.5 kW to 3,000 kW+
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Stability less than 10 ppm
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Resolution up to 24 bits
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Output ripple reduction up to 10 times



Optional Module - BDx Module
The BDx module is a 1U rack-mount blocking diode solution, including necessary heat dissipation, status monitoring, and digital I/O for monitoring. With high current ratings and communication integration with MagnaDC power supplies, the BDx module provides a one-stop solution for battery charging, capacitor charging, and preventing motor drive back electromotive force.
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Protects up to 1,200 Vdc
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Forward current up to 1,200 Adc
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Fully integrated heat dissipation function with status indicator
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Back EMF protection: Prevents back electromotive force generated by motors or connected rechargeable batteries and capacitors from flowing back to the power supply output.
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High voltage protection: Protects your power supply and other DC power equipment from externally generated DC bus voltages that may exceed the equipment's maximum rating.
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Mixed voltage parallel connection: When power supplies of different voltages are connected in parallel, protects lower voltage products from higher voltage power supplies.

Included MagnaCTRL Software
Magna-Power’s brand new MagnaCTRL Software comes standard with all SLx Series products, providing a modern, feature-rich, multi-product control platform. MagnaCTRL provides various Panels to allow for computer-based control, monitoring, sequencing, and firmware update capabilities.

Model List
|
1.5 kW | 2.6 kW | 4 kW | 6 kW | 8 kW | 10 kW | ||
---|---|---|---|---|---|---|---|---|
Max Voltage (Vdc) | Max Current (Adc) | Ripple (mVrms) | Efficiency | |||||
5 | 250 | 500 | 600 | N/A | N/A | N/A |
30 |
84% |
10 | 150 | 250 | 400 | 600 | N/A | N/A | 30 | 89% |
16 | 93 | 162 | 250 | 375 | 500 | 600 | 40 | 89% |
20 | 75 | 130 | 200 | 250 | 400 | 500 | 40 | 90% |
25 | 60 | 104 | 160 | 240 | 320 | 400 | 50 | 91% |
32 | 46 | 81 | 125 | 186 | 250 | 310 | 60 | 91% |
40 | 37 | 65 | 100 | 150 | 200 | 250 | 80 | 91% |
50 | 30 | 52 | 80 | 120 | 160 | 200 | 70 | 92% |
60 | 25 | 43 | 66 | 100 | 133 | 166 | 100 | 93% |
80 | 18 | 32 | 50 | 75 | 100 | 125 | 120 | 93% |
100 | 15 | 26 | 40 | 60 | 80 | 100 | 120 | 93% |
125 | 12 | 20 | 32 | 48 | 64 | 80 | 110 | 93% |
160 | 9 | 16 | 25 | 36 | 50 | 60 | 110 | 93% |
200 | 7.5 | 13 | 20 | 30 | 40 | 50 | 110 | 94% |
250 | 6 | 10.4 | 16 | 24 | 32 | 40 | 110 | 94% |
300 | 5 | 8.6 | 13.2 | 20 | 26.4 | 33.3 | 160 | 94% |
375 | 4 | 6.9 | 10.4 | 16 | 21.3 | 26.5 | 160 | 94% |
400 | 3.7 | 6.5 | 10 | 15 | 20 | 25 | 170 | 95% |
500 | 3 | 5.2 | 8 | 12 | 16 | 20 | 250 | 95% |
600 | 2.5 | 4.3 | 6.4 | 10 | 13.3 | 16.5 | 250 | 95% |
800 | 1.8 | 3.2 | 5 | 7.5 | 10 | 12.5 | 350 | 95% |
1000 | 1.5 | 2.6 | 4 | 6 | 8 | 10 | 400 | 95% |
1250 | 1.2 | 2 | 3.2 | 4.8 | 6.4 | 8 | 700 | 95% |
1500 | 1 | 1.7 | 2.6 | 4 | 5.3 | 6.6 | 1000 | 95% |
2000 | 0.75 | 1.3 | 2 | 3 | 4 | 5 | 1000 | 95% |
3000 | 0.5 | 0.86 | 1.3 | 2 | 2.6 | 3.3 | 1000 | 95% |
4000 | 0.37 | 0.65 | 1 | 1.5 | 2 | 2.5 | 1000 | 95% |
6000 | 0.25 | 0.43 | 0.66 | 1 | 1.33 | 1.66 | 1000 | 95% |
8000 | 0.18 | 0.32 | 0.5 | 0.75 | 1 | 1.25 | 1000 | 95% |
10000 | 0.15 | 0.26 | 0.4 | 0.6 | 0.8 | 1 | 1000 | 95% |