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Questions about Toroidal Transformer Winding

The more you know about toroidal transformers and how they work, the easier it will be to acquire pieces that fit in specific devices and complete unique applications. We want to take some time going over some questions we get asked when helping with transformer winding.
ToroidsWhat are the most common applications for a toroidal transformer? Although frequently used in telecommunications and medical applications, a toroidal transformer can be used in an electronic transformer application that can accommodate its shape and size. Toroids offer engineers many benefits; however, they are not always ideal to use. For some applications, they are not very practical.
What materials are available and what materials do you work with? For transformer cores, we work with any materials available to us. Our customers usually have us working with nickel-iron, powdered iron ferrites, moly-permalloy powder, and silicon steel. We work with more than what is listed above. If you have a core, we can help with toroidal transformer winding.
What shape is a toroid and why? Toroids look like doughnuts. They are a 360-degree wound transformer. The symmetrical shape of the circle makes a near complete magnetic field that is canceled outside the coil. A toroidal transformer has minimal amounts of leakage inductance, and it also creates less EMI when compared to other transformers.
Do you work with an encapsulated toroidal transformer? Yes, we work with all types of transformers including toroids and bobbins.
If I already have a toroid, but I want to make more, can you help with reverse engineering? We can deconstruct your part, see how it works, and then put it back together. From that, we can recreate more transformers just like the original.


We can answer all your specific questions about toroids and transformers. Give us a call today for more information.


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