Bidirectional DC

Bidirectional power systems operate as either a programmable DC source or DC load. A wide range of nominal power, voltage and current outputs are possible.

Operating in quadrants 1 and 4, each bidirectional power supply is user programmable to source or sink current from a device under test. This is in contrast to bipolar power supplies which are programmable for positive or negative voltage, supplying source current only.

The all-in-one approach allows you to test almost any DC source or DC load, as high dynamics enable users to quickly switch between quadrants. Common applications include electric drive testing, battery pack emulation, characterising DC-DC converters, battery pack cycling and super capacitor simulation.

Bidirectional ETPS products give you the advantage of regenerating excess electrical energy back to the grid whilst in load mode. In comparison, traditional electronic loads waste 100% of reusable electrical energy by dissipating it as heat. By regenerating energy, users can save significant electricity costs while eliminating thermal issues associated with traditional loads.

If a standard product doesn’t fit your requirement then our systems can be modified for a specific application, including unusual voltage ramp profiles and faster response times. Products can also be ruggedised for protection against harsh environmental conditions.

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Did you know...

  • Selected LAB-SCUBI models will operate as a load from 1000V down to 5V without current derating.
  • A special series of CON-DSS bidirectional DC-DC converters are available if you only have access to a DC link.
  • Multi channel LAB-MOBI systems provide 2 or 4 output channels which are individually controllable for source and sink functions.
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LAB-GSSH

LAB-GSSH

High Power Bidirectional DC Supplies

Min Max
Power: 0 to 40kW 0 to 2MW This maximum is achieved by using units in master-slave.
Voltage: 0 to 130VDC 0 to 1500VDC
Current: 0 to ±80A 0 to ±38400A This maximum is achieved by using units in master-slave.

Download datasheet

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LAB-SCUBI

LAB-SCUBI

Single Channel Bidirectional PSU

Min Max
Power: 0 to 60kW 0 to 1MW This maximum is achieved by using units in master-slave.
Voltage: 0 to 300VDC 0 to 1000VDC
Current: 0 to ±200A 0 to ±2000A This maximum is achieved by using units in master-slave.

Download datasheet

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LAB-MOBI

LAB-MOBI

Multiple Output Bidirectional PSU

Min Max
Power: 0 to 60kW 0 to 500kW
Voltage: 0 to 300VDC 0 to 1000VDC
Current: 0 to ±200A 0 to ±4000A This maximum is achieved by combining channels in parallel.

Download datasheet

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LAB-GSS

LAB-GSS

Grid-Tied Bidirectional DC Supply

Min Max
Power: 0 to 20kW 0 to 32kW
Voltage: 0 to 400VDC 0 to 600VDC
Current: 0 to ±40A 0 to ±100A

Download datasheet

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LAB-GSS-HC

LAB-GSS-HC

High Current Bidirectional DC Supply

Min Max
Power: 0 to 20kW 0 to 32kW
Voltage: 0 to 65VDC 0 to 130VDC
Current: 0 to ±192A 0 to ±600A

Download datasheet

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