High frequency switching transformers and inductors

Design and manufacture of high-frequency switching transformers

Applications and construction features

High frequency switching transformers, compared to low frequency electrical transformers, allow to maximize

the power delivered, keeping dimensions and bulk to a minimum. In fact, electrical transformers sized to operate at high frequency

They are significantly smaller in size than traditional transformers.

Switching transformersSVThigh frequency are made with innovative ferrite cores with high magnetic permeability and, where

Transformers require a higher degree of insulation, with triple-insulated (TIW) copper wires. Such electrical transformers are designed

and made with top-quality materials, electrolytic copper wire conductors, insulators with high dielectric and thermal properties (classes F and H), impregnated with paint or epoxy resins. High-frequency transformersSVTThey are produced with automatic machines to guarantee maximum reliability and repeatability in the electrical tolerance parameters.

trasformatori switching SVT

Design and characteristics of switching transformers


SVTdesigns and develops various types of switching transformers, designed and customized to meet the end customer's needs, maximizing performance and preventing any safety and electromagnetic compatibility issues.

Alongside traditional switching transformers,SVTIt also designs and manufactures high frequency inductors with ferrite core in any shape (EE, ETD, toroidal, PQ, RM, etc.).

Switching transformersSVTAt high frequencies, they are also used to suppress radio interference in conjunction with capacitors, preventing the propagation of parasitic signals coming from the power supply and the electrical network, in the protection and control circuits of devices or in dimmers.


A protective screen can also be applied between the primary and secondary windings to ensure greater insulation. Upon request, a thermal cutout can also be applied to the primary winding to protect against overheating. This thermal cutout can be either automatic or manual reset, depending on the application.


Applications, testing and quality control

Switching transformersSVThigh frequency, cover a wide range of applications with dimensional and technical characteristics ranging from standard to the most complex customizations, both with horizontal or vertical support spools, and with a toroidal core.


A true transformer, in which ferrite components are used instead of lamellar cores. These variants are widely used in the production of industrial automation, electronic equipment, measuring instruments, and a wide range of safety devices.

Standard production includes types from E15 to E42, with supports that can be used both horizontally and vertically.
A coil of Mylar tape protects the copper wire of the winding, and the finishes also include a metal clip.


SVTsupports its customers from the design and customization of high-frequency transformers, ensuring maximum results in terms of cost and technical performance. The quality of switching transformersSVTHigh-frequency transformers are tested on multiple levels: every manufacturing stage is inspected, from the initial winding to the final testing of the transformer itself. Each transformer undergoes 100% testing upon completion of production. This ensures that each transformer produced is certified for electromagnetic performance and the level of safety guaranteed.


The pre-testing as well as the final testing is carried out in compliance with the current regulations

CEI EN 61558 – CEI 96.7 – 96.8 – CEapplicable, depending on the type of transformer and its use. Careful control of production processes and customization of testing with dedicated and specifically designed equipment guarantees electrical transformersSVTmaximum reliability.

Precise and mandatory tests ensure a high degree of safety and reliability of each individual transformer produced, in compliance with current national and international regulations.


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Ferrite

Upon request, SVT, a company based in the province of Padua, also supplies ferrites of various sizes. For information and quotes, simply call 049 9070026.

or write an email to the email addressinfo@svtsas.it

Request information on switching transformers

Contact SVT for more information on high-frequency switching transformers, ferrite chokes, and customized solutions for your applications.

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FAQs

  • What are the advantages of high-frequency switching transformers?

    Switching transformers deliver high performance while reducing size and footprint compared with conventional low-frequency transformers.

  • Does SVT make custom switching transformers?

    Yes, SVT develops switching transformers and high-frequency chokes designed to meet specific customer application needs.


  • What cores are used in switching transformers?

    Transformers are made with high-permeability ferrite cores and can be built in various configurations depending on the application.


  • Are switching transformers tested?

    Yes, every transformer is inspected during production, pre-tested and given a final test in accordance with applicable regulations.



  • Does SVT also supply ferrites?

    Yes, upon request SVT can supply ferrites of different sizes for specific high frequency applications.