Our business world is constantly evolving and so are our customers expectation. At Jema, innovation is in our DNA. This is why we are developing a compact power converters adapted for multiple applications in multiple markets.


To match a wide number of applications and potential requirements, the following specs are at the base of the requirements:

  • 3 phases 400/480V AC IN
  • Wide current / voltage envelope DC OUT, with 1kV / 160A max per DC port
  • Series / parallel connections between ports & modules
  • Reversible power (bi-directional)
  • Current & voltage reversible and controlable on DC port
  • High current quality (stability, precision,…)

The Challenge

In addition to the requirements above, the challenge lies in the compactness of the modules, without water cooling, and keeping handling feasible and easy for operators on site. Modules are easily integrable in electrical cabinets.

The Solution

The solution will be a high technology power converter module, isolated, AC/DC/AC, with very high efficiency. All DC ports of a solution can be combined (parallel and/or series) to match the exact customer requirements, and reach the wide current / voltage envelope.

These combinations allow to create all possible solutions while keeping a high production volume and therefore reach a low cost level.

The European Regional Development Fund and Wallonia invest for our future. Total cost: 1.235.000 € with FEDER : 395.200 € and Wallonia : 592.800 €.



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