The toroids are used to step down or step up a voltage. Circuits, such as power supplies, amplifiers, and inverters, use toroids. Additionally, electrical equipment, such as computers, televisions, audio systems, and radios, use toroid coils.

What is the use of toroid?

Toroidal inductors and transformers are used in a wide range of electronic circuits: power supplies, inverters, and amplifiers, which in turn are used in the vast majority of electrical equipment: TVs, radios, computers, and audio systems.

What are toroid coils used for?

Toroidal coils are commonly used to form inductors and transformers. The principal advantage of toroidal coils over straight coils in these applications is magnetic field containment – as we shall see in this section, the magnetic field outside of a toroidal coil can be made negligibly small.