Toroidal transformers

Toroid core transformer design and manufacture

Toroidal transformersUK - Toroidal transformer manufactuer
We can design and manufacture high quantity batch runs of all types of transformers and wound components.
UK - Toroidal transformers
Toroidal transformers - The word toroid explains the shape of these transformers toroid meaning a doughnut-shaped Object.

Toroidal transformer design

A toroidal transformer comprises of a coil of insulated wire wound around a toroid core which is usually made of iron or similar metal. Due to the larger core diameter and smaller number of windings the overall resistance of the coil is reduced. The magnetic flux induced is confined to the core, preventing its magnetic energy being absorbed by other metallic objects.

The toroid core is a continuous wound ribbon that has virtually no air gap which keeps the leakage flux to a bare minimum. The windings are then evenly wrapped around this core which enables toroidal transformers to operate at a higher flux density than standard laminated transformers.

Toroidal transformers can operate at 1.6 to 1.8 Tesla (16000 - 18000 Gauses) While standard transformer cores are limited to around 1.2 to 1.4 Tesla (12,000 to 14,000 Gauss).

Advantages of Toroidal transformers

Toroid core transformers offer many advantages over conventional laminated transformers. Toroidal transformers are:
  • More efficient
  • Weigh less
  • Quieter under load
  • Low exterior magnetic field
  • Offer a single mounting point
  • Easily designed into applications

Custom designed toroidal transformers

Although the cross sectional area of a toroidal transformer must be kept constant, the diameter of the toroid core and the height can be designed around your specific requirements.

We specialise in the design of custom transformers knowing that off the shelf transformers often do not meet our customer's specifications. We are committed to help with all your design requirements with the quality you deserve.

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