The All Mode design simultaneously...

SMP Sintermetalle Prometheus GmbH & Co. KG

"The All Mode design simultaneously..." by SMP Sintermetalle Prometheus GmbH & Co. KG

...damps both differential mode and common mode noise. The High Frequency Composite Materials (HFCM) from SMP satisfy all of the requirements of modern SiC and GaN applications.

By combining HFCM and All Mode technologies it is possible to reduce the filter components required in a system by about 50 percent, so for example no additional common mode chokes or filters are needed.

EMC filters reduce interference currents and voltage spikes in power converter systems which are generated by parasitic effects and cyclic elements of the system. The material plays an important part in this, as SMP’s Managing Director Johannes Gemenetzis, an engineer with a Master’s degree in Electrical Engineering and Information Technology, explains: “The target is to achieve a stable inductance at the working point over the entire frequency spectrum in order to maximize the interference suppression. Compared to the standard technologies which use materials such as ferrite, electrical steel sheets and nanocrystalline ribbon, the All Mode EMC filters are up to 40 percent lighter and reduce interference levels by as much as 40 dB[µV]."

Because they are made from magnetostriction-free materials, the All Mode filters are noiseless. “Due to the stability of their inductance, we realize our EMC filters with a smaller inductance, whereby a high dynamic of the system is achieved. The voltage spikes which occur periodically with the switching frequency of the inverter are immensely reduced. So the life-time of the electric motors is much longer. The efficiency of the entire system is further improved due to very low losses of the materials. Moreover, fewer filter components are needed, so volume is reduced and the cost effectiveness of the power electronic system as a whole is increased substantially. The fast switching SiC and GaN semiconductors place high demands on the magnetic materials. Decisions are based on materials! With the development and production of our own materials, we have solutions for every application."

The family-owned company with headquarters in Graben-Neudorf in Germany specialises in the development and manufacture of filter systems, inductive components and magnetically soft moulded parts. The portfolio of components produced by the company is designed to handle currents up to 2000 A, for special applications up to 3000 A, and frequencies up to the gigaHertz range. The materials have high saturation induction of up to 2 Tesla. The components are produced with dimensions from 19 mm to 300 mm and weights from 0.05 kg to 130 kg. The filter systems and inductive components are used in power electronics, automation and drive technology applications for industries such as electromobility, railway and marine engineering, medical technology, aerospace and renewable as well as conventional power generation.

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Inductive components for inverters in wind turbines
Quiet and resistant against impact and temperature
Low-noise chokes for CT scanners
SMP Sintermetalle Prometheus GmbH & Co KG is introducing a range of chokes designed specifically for use with inverters. The special feature of these units is their ingress protection class of IP66, which makes them suitable for use in rough environments, for example in rail vehicles or on oil platforms. Chokes have the function of restricting incoming current on the line side.
Ottostrasse 4
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Export Regions
Dr. Ing. Vasilios Gemenetzis

About SMP Sintermetalle Prometheus GmbH & Co. KG

it begins with research and development

SMP Sintermetalle Prometheus GmbH & Co KG was founded in 1982 by Dr.-Ing. Vasilios Gemenetzis.

In Graben-Neudorf (Baden) near Karlsruhe SMP produces inductive components, filter systems, cores and moulded parts on the basis of soft magnetic materials. The components are used in different power electronic applications. SMP produces nearly 100 % of the products customized. The products are sold with an export rate of over 50 % worldwide.

Over the years SMP has become one of the most important suppliers for inductive components with soft magnetic materials in industrial applications on the world market.

The change of generations is already done. Both sons of the company's founder are involved in the family business for a couple of years now and completed their studies in electrical engineering and information technology with a masters degree at the Karlsruhe Institute of Technology (KIT).
Two production locations in Germany and Austria with seven isolated halls regarding fire safety with an area of more than
14.000 m² secure reliable supply and production.

Our philosophy:

  • Research and development
  • Highest quality
  • Highest technical, administrative security
    Documentation of all processes
  • Fair price-performance ratio
  • Competent and individual advice through our experience in materials and the know-how extension in electrical engineering
  • High manufactering depth for quality- and quantity extension