Common Mode Chokes

Common mode chokes are components used to reduce common-mode interference by constricting power associated with the signal while allowing desired signals to pass freely. They are often used for EMI suppression, or in other applications where noise is introduced from an outside source. Common mode chokes are usually constructed with an inductor surrounded by an insulated core, and applied at both the source and the load of the system.

7108 Application Field and Working Principle

The 7108 is a common-mode choke specially designed for EMI suppression. The suppressed noise, passes through the reactor, but the desired signal is allowed to continue along its original path. An arrangement of the windings reduces or eliminates the inductive coupling of the noise current on the wires. The inductor is made with heavy wall steel and the core powder in the core is a high quality magnetic material such as ferrite or nanocrystalline.

The 7108 is also designed to help protect sensitive electronic components from damage due to excessive current, such as in the application of high-definition video systems. The device applies a resistive force to the current that is designed to limit the flow of electric current, reducing interference and providing power conditioning along the way. With the use of the 7108, the current limiting resistances in the channel are greatly reduced and the power dissipated is also minimized.

Another application field for the 7108 is in the use of generators. This type of common-mode choke helps to reduce the amount of common-mode voltage that can occur in the generator. Without this type of protection, the generator would be subject to higher inductive churning of the output voltage, which can lead to a lower efficiency and even damage to the generator coils.

The 7108 is also used in various radio frequency (RF) communications applications. In these applications, the common-mode chokes help to reduce the amount of interference present in signal transmissions. By limiting the amount of unwanted current that can travel from one location to another, the 7108 helps to ensure that only clean, high-quality signals are sent while simultaneously reducing the amount of noise.

The 7108 is a highly effective device when it comes to reducing the amount of noise generated by high-frequency signals. It is also important in applications where the current needs to be controlled or limited, as it provides a resistive force that helps to reduce current leakage. This is an especially important feature in applications such as high-definition video systems, which require a controlled amount of current to operate without experiencing any system disruptions.