Once high power ranges are used, weight and size become important factors in the design of a system. Where future-oriented concepts find their use, modeled voltages in the medium-frequency range are increasingly being called upon. They enable compact designs of transformers and filter components for railway technology, lift technology, or in charging stations of electric vehicles, for example. For an optimized construction volume, we rely on high-quality materials, such as ferrite, nanocrystalline, or amorphous cores, amongst other things.
RESONANT CONVERTER
Thanks to its heat sink connection, the open-design resonant converter boasts optimized heat dissipation. The integrated leakage inductance covers the complete inductive part of the LLC topology in a component. Due to the minimal tolerances of the leakage inductance, the desired resonance range is ensured.
Leakage inductance: 150 µH
Main inductance: 1,500 µH
Power: 6 kW
Transformation ratio: 1:5
Primary voltage 800 V
Secondary voltage: 140 V
Frequency: 60 kHz
ENCAPSULATED MEDIUM-FREQUENCY TRANSFORMER
For our customers we developed an encapsulated medium-frequency transformer with heat sink connection for optimized heat dissipation and customer-specific leakage inductance. The low-capacitance structure enables high switching frequencies at high power, while simultaneously minimizing loss.
Power: 40 kW
Frequency: 50 kHz
Leakage inductance: 20 µH
Transformation: 1:1
Primary voltage: 800 V