Magna-Power DBx | DC Power Supply Add-On Module
Combines high DC power with linear-grade stability and low ripple. Keeping magnetic fields constant and calibration references precise in test systems.
- ✓ Power Range: 1.5 kW to 3000 kW+
- ✓ Voltage: Up to 1000 V DC
- ✓ Current: Up to 10000 A DC
- ✓ Measurement Resolution: Up to 24 Bit
Magna-Power DBx Module – Add-On Module for High-Stability Magnet Power Supplies
Stable Magnet Currents and DC References
The DBx Module is connected in series to the output of a programmable Magna DC power supply. It corrects deviations in voltage, current, and power. A stable coil current also keeps the generated magnetic field constant. The DBx Module supplies dipole, quadrupole, and steering magnets in high-energy physics as well as magnet coils in medical systems. In ATE calibration systems, the stabilized output provides a voltage or current reference.
Temperature-Stabilized Control with DCCT
A fluxgate DC current transformer (DCCT) measures the output current with galvanic isolation. Setpoints are programmed with 18-bit resolution, while measured values are read back with 24-bit resolution. Low-temperature-drift resistors and other sensitive components are housed in a temperature-controlled compartment. This allows the control loop to reach its stable operating point faster and keeps long-term drift below 5 ppm.
Select the Configuration and Model Based on Filtering, Voltage, and Current Requirements
All three configurations use a temperature-stabilized controller in a 1U rack-mount enclosure.
A1 adds a linear regulator, EMI filters, and an internal DCCT.
B1 retains the controller and internal DCCT but omits the additional output filtering. Both configurations are available with current ratings up to 150 A DC.
C1 uses an external DCCT for high-current applications. The transducer connects to the rear of the module, and models are available up to 10,000 A DC. Available voltage ratings extend to 1,000 V DC.
Because the resolution step size and calibration depend on the maximum voltage and current ratings, the selected model should closely match the required maximum values.
Alternative Products
If a compact programmable DC power supply with 16-bit control and up to 10 kW meets your requirements, the Magna-Power SLx Series is an alternative to a DBx-based system. If protection against reverse voltage from inductive loads is the priority, the Magna-Power BDx Module protects MagnaDC power supplies up to 1,200 VDC and 1,200 ADC.
Related Product Categories
Power Supplies and Sources | DC Power Supplies up to 100 V | DC Power Supplies from 100 to 1,000 V
Which DBx Configuration Fits Your Magnet Power Supply?
A1, B1, or C1? We help define the required filtering, voltage and current range, and integration with your MagnaDC power supply—matched to magnet control or ATE calibration.
Specifications
| Device Type | series-connected add-on module for programmable MagnaDC DC power supplies |
|---|---|
| Compatible Power Range | MagnaDC systems from 1.5 kW to more than 3,000 kW |
| Maximum Voltage | up to 1,000 V DC, depending on the model |
| Maximum Current | up to 150 A DC for A1 and B1, up to 10,000 A DC for C1 |
| Control Modes | voltage, current and power control |
| Configuration A1 | linear regulator, differential-mode and common-mode EMI filters, temperature-stabilized controller and internal DCCT |
| Configuration B1 | temperature-stabilized controller and internal DCCT without a linear regulator or additional EMI and ripple filters |
| Configuration C1 | temperature-stabilized controller with an external DCCT for high-current applications |
| Eight-Hour Long-Term Stability | less than 10 ppm for A1 and B1 and less than 50 ppm for C1 in voltage or current control, measured as FWHM |
| Programming Resolution | 18 bit |
| Measurement Resolution | 24 bit |
| Programming and Measurement Accuracy | ±0.04% of full scale in voltage and current control |
| Temperature Coefficient | less than 0.05 ppm/°C in voltage control and less than 0.5 ppm/°C in current control |
| A1 Filter Performance | up to 10-fold reduction in output ripple and EMI insertion loss of up to 62 dB |
| A1 Power Loss | output current × 1.5 V |
| Rise and Fall Time | maximum 6 s from 10% to 90% of full scale in voltage, current and power control |
| Warm-Up Time | 45 minutes |
| Standard Interfaces | USB Type B on the front and rear panels and RS485 via RJ45 |
| Control Connection | 15-pin DBx interface for connection to the 37-pin JS1 connector of the MagnaDC power supply |
| Optional Interface | LXI TCP/IP Ethernet via RJ45 |
| DC Connections A1/B1 | copper bus bars with 3/8"-16 threaded inserts, rated for up to 250 A DC |
| Form Factor | A1 and B1 in a 1U rack-mount enclosure, C1 in a 1U rack-mount enclosure with an external DCCT |
| Rack Standard | EIA-310 |
| Dimensions A1/B1 | 4.4 × 48.3 × 61.0 cm (H × W × D) |
| Weight A1/B1 | 15.88 kg; for C1, the dimensions and weight of the external DCCT depend on the selected current rating |
| Operating Temperature | 0 to 50°C |
| Storage Temperature | −25 to +85°C |
| Airflow | side air intake and rear exhaust |
| Safety and Compliance | EN 61010-1, Low Voltage Directive 2014/35/EU, EMC Directive 2014/30/EU, CISPR 22/EN 55022 Class A, CE and RoHS |
Options & Accessories
| DC Power Cables | the power-carrying DC cables are not included and can be ordered to match the required voltage, current, length and connections |
|---|---|
| LXI TCP/IP Ethernet | optional Ethernet interface via RJ45 for integration into automated test and control systems |
| Rack Enclosure and System Integration | optionally available with equipment installation, cooling, AC and DC cabling, circuit breakers, DC bus bars, an emergency stop pushbutton and factory system testing |
Scope of Delivery
| DBx Module | unit in the selected configuration |
|---|---|
| Terminal Protection | protective covers for the DC input, DC output and remote sense terminals |
| Interface Cable | 15-pin to 37-pin D-Sub cable for connection to the MagnaDC power supply |
| Rack Supports | two rear support brackets for rack installation |
| Rack-Mounting Screws | 16 size 10-32 screws |
| Flat and Lock Washers | eight size 10-32 sets |
| Handles | two handles with mounting hardware |
| Software and Documentation | USB drive containing software, drivers and digital documentation |
| AC Power Connection | IEC 60320 power cord |
| Not Included | MagnaDC DC power supply, power-carrying DC cables and 19-inch rack enclosure |
Applications
| Particle Accelerators | current-controlled operation of highly inductive dipole, quadrupole and steering magnets |
|---|---|
| Magnet Coils | generation of stable magnetic fields in research and development |
| Medical Technology | magnet power supplies for radiology research and advanced cancer therapies |
| Calibration and Metrology | high-power voltage and current references for research and automated calibration systems |
| DC Test and Measurement | calibration and testing of devices with DC inputs |
| Low-Noise High-Power Applications | applications in which a conventional linear power supply is not technically or economically practical |
Links & Downloads
Supplier
Combining robust power processing topologies with state-of-the-art vertically integrated USA manufacturing, tens of thousands of companies rely on Magna-Power's high-quality programmable DC products to power their innovation.
Magna-Power’s programmable DC power supplies use a rugged current-fed power-processing topology. With more than 500 models from 1.5 kW to over 3,000 kW and numerous standard options, Magna-Power offers one of the industry’s broadest ranges of programmable DC power supplies.
Accessory Items
MPE-XR-Serie
Price on request