Mar 20,2023
What is a EMI Common -mode suppression inductor?
EMI (Electromagnetic Interference) common-mode suppression inductors are components used in electronic circuits to reduce the amount of unwanted electromagnetic interference that is emitted from or received by the circuit. Common-mode noise is a type of noise that appears on both sides of a differential signal and can be caused by various sources such as power supplies, lightning, or other electromagnetic radiation.
Common-mode suppression inductors work by blocking common-mode noise from entering or exiting the circuit, while allowing the differential signal to pass through. They are usually placed in series with the signal path or power supply lines and are designed to have a high impedance to common-mode noise and a low impedance to differential signals.
These inductors are commonly used in applications such as power supplies, audio circuits, and data communication systems where EMI can cause problems with performance or signal integrity. By reducing EMI, these components can help improve the reliability and performance of electronic devices.
