Month: August 2025

ferrite. The copper wire is wound around this doughnut-shaped core, creating a compact and highly efficient design. I often describe them as the smarter, space-saving alternative to traditional rectangular transformers.

A toroidal transformer is a type of electrical transformer that uses a ring-shaped (doughnut-like) magnetic core made from materials like silicon steel or ferrite. The name “toroidal” comes from the Latin word torus, meaning a circular or doughnut shape.

Encapsulation in toroidal transformers refers to the process of completely sealing the transformer’s core and windings within a protective material such as epoxy resin or electrical-grade silica sand mixed with resin compounds.