Module for air-cooled EV charging stations with embedded resonant choke

At the core of Premo's innovation lies a compact 50KW transformer set meticulously engineered to fulfil the demanding power needs of modern EVs. Housed within a sleek 300mm x 174mm x 100mm aluminium casing, this high-performance transformer provides excellent efficiency, supplying power with over 99% efficiency. This outstanding efficiency ensures minimal power loss, lowering energy consumption and promoting sustainable charging practices.

The transformer set includes advanced design elements to optimise performance and meet the critical issue of thermal management. A key feature is embedding a resonant choke for LLC (LCLC) topology, permitting efficient energy transfer and decreased switching losses.

To facilitate effective heat dissipation, the part is created with the company's new patented technology of internal fins that work together with Coolmag thermo-conductive resin – a material specifically chosen for its superior heat transfer properties.

Using triple Insulated Litz wires provides exceptional thermal dissipation while accommodating thermal expansion and contraction. This soft and flexible insulation mitigates the chance of damage caused by temperature fluctuations, ensuring the transformer set's reliable performance and durability. Furthermore, the distributed gap multicore design, combined with the utilisation of MnZn Ferrite Cores, improves the transformer's overall protection and thermal stability.

The transformer set with an embedded resonant choke for LLC topology denotes a considerable leap in power electronics for EV chargers. Its compact size, excellent efficiency exceeding 99%, and advanced thermal management capabilities make it an ideal option for fast-charging stations catering to the expanding EV market.