The Intepro PSI Series Auto-Ranging Programmable Power Supply products are intelligent power supplies with increased performance for applications that demand fast response times, advanced power simulation mode and precision control. The DC Power Supply PSI 9000 Integrated Function Generator allows creation of arbitrary disturbances for complex testing. The PSI 9000 Series include a galvanically isolated analog interface for voltage, current and power programming and monitoring. The DC Power Supply PSI 9000 has Industry leading selection of digital remote plug-and-play modules.


Key Features of PSI 9000 Auto-Ranging Programmable Power Supply:

  • Auto-Ranging

    Auto-Ranging Output Stage

  • Generator

    Integrated Function Generator

  • Simulation

    Photovoltaic Solar Array & Fuel Cell Simulation

  • Impedance

    Programmable Impedance

  • Efficiency

    Up to 95%

  • Output Power

    Between 1kW & 150kW

User and process profiles can be edited, saved and archived so that the reproducibility of a test or other application is improved.  In Addition, a single 2U chassis houses up to 3kW of DC power and can be paralleled up to 30kW. Each chassis features a controller which allows the flexibility of separating into individual sources or paralleling for high power applications.

Integrated Function Generator

The FPGA based control circuit provides additional features such as a function generator using a table based regulation circuit for the simulation of non-linear internal resistances.

Rectangle Wave

Rectangle Wave

Triangle Wave

Triangle Wave

Trapezoid Wave

Trapezoid Wave

Sine Wave

Sine Wave

Complex Sequence Generator

By linking together a number of differently configured sequences, complex progressions can be created. Smart configuration of the arbitrary generator can be used to match triangular, sine, rectangular or trapezoidal wave functions and thus, e.g. a sequence of rectangular waves with differing amplitudes or duty cycles can be produced.

For the implementation of the LabView IDE Intepro offers ready-to-use components (VIs) to be used with the Ethernet interface. Other IDEs and interfaces are supported by documentation within the communication protocol.

Complex Sequence Generator

Complex Sequence Generator

Solar Array Simulation

The PSI is an ideal solution for simulating static or dynamic irradiance levels of solar array. The high accuracy irradiance curve is based on 16,400 data points and adjustable in 1% increments. Isc, Uoc, MPP and Impp are user programmable.

solar pv array

Solar PV Array

Fuel Cell Simulation

An embedded Fuel Cell table function is used to simulate the characteristics of voltage and current of a fuel cell. Simply define slope points and the data is automatically calculated then transferred to the function generator and output from the DC source.


Fuel Cell Array

front panel

Front Panel

User Interfaces

User Interfaces

User Control

The large LCD touch panel offers a modern and intuitive user interface for controlling the four operating modes, Constant Voltage (CV), Constant Current (CC), Constant Power (CP) and Constant Resistance (CR). Response times for the control via analog or digital interfaces by the DSP controlled hardware are among the fastest in the industry. In parallel operation of multiple devices, a master-slave bus is used to connect the chassis to create high power system where the actual values are totaled and the set values distributed.

An Internal resistance control provides a means to virtually simulate an internal resistance (Programmable Impedance) which is in series to the voltage source and thus also in series to the load. According to Ohm’s Law, this causes a voltage drop, which will result in a difference between adjusted output voltage and the actual output voltage.

resistance image


  • front dc power supply

    Front View

  • rear view dc power supply

    Rear View

  • left view dc power supply

    Left View

  • right view dc power supply

    Right View