Bidirectional DC source/sink with energy recovery » LAB/HPR


LAB/HPR DC sources are controllable 19" bidirectional voltage sources in the power range from 7kW to 1.4 MW. The devices operate bidirectional - load and power supply in one, thus energy recovery with high efficiency. We as developer and manufacturer can realize your individual wishes besides our standard device.

Technical data:

  • Power from 7kW to 1.4MW
  • Output current up to 50000A
  • Output voltage up to 1500V
  • Power ranges 7kW to 504kW available for each nominal output voltage
  • Constant voltage (0 to 100%), constant current (0 to 100%), constant power operation (5 to 100%)


The LAB/HPR series has the following features, more details can be found in the data sheet

  • Fully digital control and regulation
  • Power increase through master-slave connection for users up to 504kW
  • Power up to 1.4MW possible through system integration
  • Control via 5" color TFT touch display (values, status display and mode selection)
  • Measuring range switchover for current and voltage
  • Adjustable voltage and current rise time (U- and I-Slope)
  • Protective functions: OVP, OCP, UVP (adjustable time)
  • Front USB stick connector (optional)
  • Current operating values can be stored on USB stick at adjustable intervals
  • Via function USB stick Function generator with different curves
  • Fast crossover between CV & CC
  • auto ranging function
  • Software for battery simulation (optional)
  • Power recovery with 95% recovery
  • External sense outputs
  • Adjustable switch-off time for the device after pressing the start button
  • Simulation of the internal resistance
  • Temperature controlled fan
  • Support SCPI command language
  • LabView driver available
  • Control software for Windows




  • Testing the functionality of battery, fuel cells and photovoltaic modules can be simulated Battery simulation
  • DC load for fuel cells
  • Charging and discharging of fuel cells
  • Power conversion tests (charging and discharging equipment)
  • Charging and discharging batteries (battery tests)
  • Adjustment of car starting curve
  • Testing of power components in electric vehicles
  • DC sources/countersinks for test benches with low voltage/high voltage
  • Testing the inverter
  • Power supply system