Bidirectional DC
Power Supplies

Power supply and regenerative load
in one

EA Bidirectional DC Programmable Power Supplies

Conventional and regenerative power supply

The Bidirectional DC power supply with integrated, regenerative electronic load series EA-PSB 10000 provides 15kW in 3U or 30kW in 4U chassis with up to 2000 VDC. This series easily parallels supplies for almost 1.92MW of power. All EA Elektro-Automatik DC power supplies and loads feature true autoranging and thus over additional operating ranges.
The lower the test voltage, the higher currents are possible. Likewise, higher voltages are available for lower currents. This means that a much wider range of test routines can be covered with a bidirectional DC power supply.

The PSB series of bidirectional DC power supply features 5″ TFT touch panel display for intuitive control, setup and programming. The intelligent interface allows you to configure and test quickly without the need for extensive manual review.

EA bidirectional dc power supplies come standard with an arbitrary waveform function generator, swappable digital interface control and built-in test routines for battery test, photovoltaic simulation and MPP tracking, to name a few.


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2 Minute PSB Benefits Summary Video

True Autoranging – Advantages for Test

All EA bidirectional DC power supplies offer true autoranging. This means that the full source and sink power of the devices is available over additional operating ranges. The lower the current required in these ranges the higher the voltage available. Higher currents are possible at lower voltages. This allows a wider range of DUTs to be tested with a single power supply. EA’s autoranging feature provides full power, output as well as input, starting at 33% of system voltage and also current.

  • Save budget and space
  • No oversizing supply
  • One supply tests more
  • Versatile for future tests

Regenerative Energy Recovery

The PSB is bidirectional, meaning it can source (provide) or sink (absorb) current and regenerate that current to the local power grid with up to 96% efficiency. The built-in electronic load function is regenerative, making the PSB a very green solution on top of minimizing investment and test equipment space.

  • Save electricity + costs
  • Efficiency approx. 96%
  • Quick return on investment
  • Environmentally friendly

Waveform Function Generator

A common need for DC power supplies is to deliver the output voltage or current with a pattern other than a straight-line DC signal. EA’s built-in function generator includes options for sine, triangle, rectangle, and trapezoid waveforms, as well as custom arbitrary wave forms. Additionally, there are configuration tools for ramping, UI and IU tables, and simulations for fuel cells and photovoltaics.

More peformance

Higher values

Time saving

Cost saving

Device Types and Series

19 Inch Slide-in Housing

(Series PSB 10000)

  • Autoranging
  • Color touch screen
  • 3-ways onboard Interface
Technical Specifications
  • Nominal power
    2500W to 30000W
    Systems up to 1.92MW parallel operation
  • Nominal voltage
    60V to  2000V
  • Nominal current
    20A to 1000A
  • Master-Slave-Bus for parallel connection
  • 19″ Full insertion
  • 3 U or 4 U housing
  • Analog and USB interface, further options retrofittable
  • Microprocessor (FPGA) controlled
  • Color touch panel
  • Internal resistance control
  • Battery test mode
  • Arbitrary generator & car startup curve
  • Optional: Digital, pluggable interface modules
  • SCPI and ModBus protocol
  • LabView VIs and control software
SeriesPower VoltageCurrent
EA-PSB 10000 2U0-1500W / 0-3000W0-10V to 0-1500V+- 0-6A to +- 0-120A
EA-PSB 10000 3U0 – 5 kW / 0 – 10 kW / 0 – 15 kW0 – 10 V up to 0 – 2000 V+-0 – 20 A up to +-0 – 510 A
EA-PSB 10000 4U30000W0-60V to 0-2000V+-0-40A to +-0-1000A

Cabinet System

EA bidirectional programmable DC power supplies with 19-inch racks can be combined in EA cabinet systems. Adaptation to numerous industrial requirements is possible.

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