What is a Toroidal coil?

A toroidal coil is a coil made by winding an electric wire around an annular magnetic core. By forming a closed magnetic circuit called an annulus, it has different characteristics from ordinary coils. A coil with a wire wound in a cylindrical shape has the potential to affect surrounding substances because the induced magnetic lines of force pass through the coil and radiate to the outside.

Application of Toroidal coil

✅ Power Circuits
Toroidal coils are used in power transformers and inductors to provide stable voltage supply.
✅ Switching Power Supplies
They are used in high-efficiency switching power supplies to minimize energy loss.
✅ Audio Equipment
In audio equipment, toroidal coils are used to maintain clear sound by reducing noise.

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