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How do You Get a Good Toroid

Not all toroidal transformers are created equally, which means that you cannot use one toroid in two different applications. Toroids and custom coil winding offer electrical engineers many benefits without the typical issues associated with other similarly powered transformers. What are the characteristics that constitute a good toroidal transformer? Before understanding what a goo toroid is, we first must define good in terms of electronic applications and devices.


A good toroid is a toroid that optimally works without redesigning electronics (all while being affordable). To create a custom toroid with custom coil winding, you first need to know your exact application. From there, you can move on to other important considerations to construct a good toroid.

Once you know the purpose, you need to decide on a core material. For toroidal transformers, there are many different options. Although alloys are commonly chosen, most toroids have some levels of coppers. Steel is often used in high-performance cores because the material leaves no air gaps.


All toroidal transformers have custom coil winding, but individuals need to select a magnetic wire material before winding takes place. Aluminum and copper are often seen as the most used wire materials because they are affordable and have an excellent current carrying capacity. Once a wire material is chosen, the next step is custom coil winding, which means a winding technique must be implemented. Winding is an important part of production because it directly influences leakage inductance. When using enameled wire, the wire must be carefully and evenly arranged.  The strength of a winding machine is adjusted to prevent any perforation of enameled wires.

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