Common Mode Chokes: Essential Components for Noise Suppression
Introduction to Common Mode Chokes Common-mode Chokes Market is projected to grow from USD 629 Million in 2023 to USD 820 Million by 2028 ; it is expected to grow at a CAGR of 5.4% during the forecast period. Working Principle The common mode choke operates on the principle of magnetic coupling. It consists of a coil of wire wound around a magnetic core, with both input and output wires wound together on the same core. When common mode noise (the same noise signal on both lines) passes through the choke, it induces a magnetic field in the core. This magnetic field opposes the noise current, effectively reducing or eliminating it. However, differential mode signals (opposite signals on the two lines) create opposing magnetic fields that cancel each other out, allowing these signals to pass through unaffected. Applications Power Supply Lines : CMCs are commonly used in power supply lines to suppress electromagnetic interference (EMI) and radio frequency interference (RFI) generated by