What Is a Common Mode Choke and How Does It Work?
A Common Mode Choke is a necessity among the main electrical parts that is put in the circuits to lessen the occurrences of electromagnetic interference (EMI) and radio frequency interference (RFI). The device somewhat resembles an electrical filter as it refuses to have the high-frequency common mode noise through it and at the same time allows the low-frequency signals and differential currents to flow through. In this way, the common mode inductors become the main factors that keep the power supplies, converters, and communication systems running smoothly and without glitches. The Role of Common Mode Chokes in Electrical Circuits Common mode chokes are inductors that are generally found in set-ups where electronic appliances are prone to receiving electrical noises or interferences. Their operation principle lies in having two coils wound on a single magnetic core—one for each line of a power or signal path. In a situation where noise is coming to both lines in the same directi...