In power lines, choke coils are often used in order to filter out high-frequency noise, reduce interference, and improve power supply quality.
In audio equipment, choke coils are widely used to eliminate howling phenomena.
In radio frequency equipment such as TV receivers, choke coils are often used to eliminate clutter interference.
In computer power supplies, chokes are used to protect circuits from excessive current surges.
In automotive electronic systems, chokes can be used to eliminate the effects of back electromotive force.
In the field of digital signal processing, choke coils can be used to isolate crosstalk between different signals.
In power systems such as switching power supplies, the use of chokes can reduce losses.