TC - The Product

These transformers are the basic part of high frequency power converters. Like standard 50 Hz transformers, they transfer the electrical power from the primary to the secondary side, by changing voltage and current levels and keeping the galvanic isolation of the load from the mains, according to the safety standards related to the different application fields. Usually the mains voltage is rectified by a full-wave diode bridge and a capacitor, the DC link feeds the transformer through an electronic switch (or more than one, depending on the topology) controlled in the range of some tens or some hundreds of kHz.
Depending on the application, the rated power, the working voltage, the rated current, the environment conditions, the designer has to choose the best topology for the power converter. The most used ones are flyback, forward, push-pull converters for power levels up to 1 kW, while for higher values half-bridge or full-bridge converters are the more suitable topologies. Sirio develops and produces small size switch mode transformers, up to 1 kW, and switch mode power transformers, up to 20 kW and more.

Industrial applications typically requires specific features in terms of electrical data, efficiency requirements, safety standards, robustness, mechanical dimensions, and so on, so it is rarely possible to consider standard power supplies, or standard transformers.
That heterogeneous reality made Sirio decide to dedicate great efforts to the switching transformers development, in order to be able to supply special components, optimized for the automatic production: this kind of approach makes possible the creation of products satisfying the customer specification and enhanced by the Sirio technology.
That Philosophy has always been one of the Sirio's strong point: to offer a high quality customized product, at the cost of a standard component.
  • Just-in-time production and economies of scale are achieved by the choice of standard raw materials, like ferrite cores and plastic parts (boxes and bobbins).
  • Extraordinary productive efficiency is possible because of deep and continuous check of raw materials' quality.
  • High frequency components need very stable construction and uniform quality over all the production batches, which can be obtained only with a high level of automation only: from the winding to the assembling process, from the vacuum casting to the final inspection phase.
  • The whole vacuum casting process has been developed over the years with close attention to the products, to find the way to reach very high working voltage levels in very short distances between windings.
  • The production quality is guaranteed and constantly supervised by the 100% final inspection phase and by process checks during production.

At last, technical staff skills and workers professional know-how help to improve the technologic level of the company!
In this section, we will not show any standard component. Starting from the customer specification, our Research and Development team will suggest the best solution for the application.