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Flat Transformer

The Revolutionary Flat Transformer:

  • The Flat Transformer is the first technological breakthrough in transformer technology in the last 60 years. It overcomes the limitations of a conventional transformer, such as hot spots due to poor heat dissipation, high leakage inductance, poor high frequency characteristics, tedious manufacturing process and bulkiness in packaging.

  • Cost reductions of greater that 50% are made possible by incorporating relatively smaller, simpler, and less expensive square cores of pressed ferrites in the Flat Transformers. These cores are packaged in a modular block with built-in single turn secondary winding using simple, stamped and formed parts. The modular blocks are mass produced which further reduces the costs. Modular blocks offer great flexibility in design. In addition, parasitic impedance can be better controlled which results in less snubbing and less stress on ancillary parts.

  • Hot Spots are eliminated as individual elements in Flat Transformers are small with high surface to volume ratio. Thermal paths are short. Build-up of bulk windings does not exist. The core's geometry results in ;lower core losses. With excellent heat dissipation, higher flux densities can be used. Higher power densities are achieved by tightly packaging the small size transformer elements with its associated semiconductor and inductor in a common heat sink.

  • Leakage inductance is low because of excellent coupling between the windings and the absence of multiple turns. Terminations to ancillary components and inductors are kept very short, resulting in excellent control of parasitic impedance. This also allows faster switching times.


The Flat Transformer and Inductors are ideally suited for Switch Mode Power Converters where low costs, low profile, high current, and high performance are important parameters.

The following data and specifications describes only one class of transformer utilizing the flat transformer technology currently in production. Other classes of transformers are available on request. Custom designs to suit your unique application are welcomed.


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