The Application Fields of Toroidal Inductors ​

Toroidal inductor is a  kind of normal passive components， it is mostly used in customer electronic sector . 
1.Energy storage

2.Singal isolation

3.Filtering

4.Generate a magnetic field

This is a disassembly photo of a computer power supply, with several toroidal coils on it.  It is responsible for controlling the current's power and serves to protect the circuit board.