CEFEM, SPECIALIST IN PASSIVE COMPONENTS FOR ENERGY CONVERSION

Since 1987, our French company has been supporting hundreds of customers around the world.
INDUCTANCES
INDUCTANCES
TRANSFORMATEURS
TRANSFORMATEURS
CONDENSATEURS A FILM
CONDENSATEURS A FILM
COMPOSANTS COMBINES
COMPOSANTS COMBINES

OUR MISSION


To provide a bespoke product with the highest possible volume, weight and power ratio.

After years of R&D and experience, we are able to offer magnetic components with the following characteristics :

 
1kW à 1 MW
1kW à 1 MW
1kW (1)
1kW (1)
3
3
1kW (4)
1kW (4)
1kW (5)
1kW (5)
Medium frequency
Medium frequency

Tailored design for ultimate performance component

At CEFEM, we consider several factors, such as the environment of the component, its constraints, in order to provide the solution that fits perfectly in your system while operating efficiently.

Depending on the requirements, whether high saturation resistance, frequency-stable inductance, low power dissipation, high power density or high short-term power, any type of winding can be combined with any type of core.

With our wide selection of materials and solution concepts, we always offer you the optimal solution for your application.

With a wide range of winding and core materials, we can develop and manufacture transformers and inductors tailored to your needs.

1kW (8)
1kW (8)

Ferrite

1kW (8)
1kW (8)

FeSi

thicknessess from 10 to 100 mm

1kW (8)
1kW (8)

Iron Powder

1kW (8)
1kW (8)

Amorphous

1kW (8)
1kW (8)

Litz wire

1kW (8)
1kW (8)

Nanocrystallin

1kW (8)
1kW (8)

Copper and aluminium



 

Our Markets

CEFEM provides MF components to several markets with a focus in railway, new energies, naval, power quality and industry.

CEFEM is your ideal partner: from advisory services to the designing process of medium frequency magnetic components, we are with you every step of the way
 
FERROVIAIRE
FERROVIAIRE
NOUVELLES ENERGIES
NOUVELLES ENERGIES
NAVAL
NAVAL
GESTION DE LENERGIE
GESTION DE LENERGIE

 

OUR PRODUCTS &OUR TECHNICAL RESEARCH RESOURCES


 
19
19

3 Phase Inductor Package

L = 150 µH
I = 80 Arms
I Ripple = 10 A
F = 10 kHz
1kW (10)
1kW (10)

4 Air-Cooled MF Transformers in one assembly

P = 230 kVA
F = 18 kHz
Weight = 65 kg
20
20

MF Transformer

P / I = 9 kVA / 500 A
F = 50 kHz
Weight = 2,5 kg
22
22

Low Losses Inductor

L = 85 µH
I = 273 A
I Ripple = 44 A
F = 7 kHz
21
21

HF Inductance and Transformer



 

Our technical research resources

Passive components represent a dynamic area for the development of our solutions.

New materials and technologies have enabled innovative approaches on a continuous basis over the past years.

CEFEM is now involved upstream in the development process for its customers. This significantly reduces the time to market when developing new components. Simulation software offers a significant advantage in this process.