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      Logo of the University of Applied Sciences and Arts Northwestern Switzerland
      • Degree Programmes
      • Continuing Education
      • Research and Services
      • International
      • About FHNW
      DeEn
      Locations and ContactFHNW LibraryMedia Relations
      Sch...
      FHNW School of Engineering and Envi...
      Instit...
      Institute of Electric Power...
      Testing power semiconductors and power electronics

      Testing power semiconductors and power electronics

      We offer to our partners and customers various test methods for power semiconductors, components, power converters and drives.

      Precise knowledge of the characteristics of power electronic components and systems is crucial for their development. This often requires special tests which we offer to our partners and customers.

      Test services for power semiconductors

      • Load cycling tests (power cycling), also bi-directional (= IGBT and diode in the same test)
      • Analysis Zth, thermal cross-coupling between different dies in the module or between different components on a common heatsink.
      • Cosmic ray tests (die & discrete components), irradiation with protons and neutrons possible
      • Curve tracer (static characteristics): from die to module level.

      Test services for power electronics and drives

      • Electrical machines (up to approx. 10 kW): efficiency, speed-torque characteristics. On request in accordance with current standards.
      • Power converters (up to approx. 10 kW): efficiency, switching behavior.
      • Electrical filters: Filter effect, Bode diagram, efficiency.
      • Drives (inverter + machine): Efficiency, speed-torque characteristics. On request in accordance with current standards.

      Test services for inductive components

      • Inductive components: Bode diagram (inductance, frequency dependency, resonances, losses)
      • Magnetic core materials for inductive components: Hysteresis curve, losses, frequency dependence (Hz - MHz), determination of Steinmetz parameters.

      The planning, execution and evaluation of the tests are carried out in consultation with the client. More details about the Cosmic Ray tests can be found here.

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      Bi-directional power cycling test bench
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      SiC MOSFETs in the test bench

      Project team

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      About FHNW

      Power Electronics and Drives
      Nicola Schulz

      Prof. Dr. Nicola Schulz

      Lecturer for Electric Power Systems

      Telephone

      +41 56 202 75 73 (undefined)

      E-mail

      nicola.schulz@fhnw.ch

      Address

      Fachhochschule Nordwestschweiz FHNW Hochschule für Technik und Umwelt Klosterzelgstrasse 2 5210 Windisch

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