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Common Mode Chokes are an integral component in many electronic applications. The constructions of a typical Common Mode Chokes are only given as the name implies - it consists of two wire coils that are wound in series and are positioned opposite to each other. The two wires, when used in the appropriate application, are used to provide effective cancellation of signals from any source.

A typical uses for Common Mode Chokes is in data and signal transmission lines. The purpose of the Common Mode Chokes is to essentially filter out any unwanted noise between the lines and the power source. This noise is typically the result of ground loops, power surges and the harmonic resonances of other components within the system.

Common Mode Chokes are also used to help reduce the buildup of eddy currents, which are caused by the movement of electricity in a closed loop. These eddy currents can interfere with signal integrity and power efficiency in certain applications. By using Common Mode Chokes, the eddy currents are reduced, resulting in a more reliable and efficient power system.

In addition to these two primary uses, Common Mode Chokes are also used in power amplifier circuits, battery charging circuits, and many other applications. The common mode choke is generally used to block any noise, from any source, from passing through the system. This noise can be caused by minor fluctuations in the power supply, as well as the harmonics generated by other electrical components. The Common Mode Choke reduces the amount of noise that passes through the system by providing resistance to the current that carries the noise.

The working principle of the Common Mode Choke is relatively simple. The two windings of the choke are placed in series with the source and the receiver of the circuit. This placement of the choke effectively cancels out any noise that is shared between the two. By using this technique, the amount of noise that is shared between the two is significantly minimized, resulting in better signal integrity.

The applications of the Common Mode Choke are widespread, and can be found in many different types of electronic apparatus. In addition to the traditional uses, it is also commonly used in high-end audio equipment, computer systems, and other specialized equipment. The goal of the Common Mode Choke is to provide a protective shell around the system, creating an electrically isolated system that can be free from external interference.

No matter what application field, Common Mode Choke is employed in, its working principle is still the same - it provides a cancelling effect on signals so that only the desired signal is allowed to pass through the system. Common Mode Chokes are used to reduce the amount of noise and interference in the system and improve the signal integrity. This is why they are essential components in many different electronic applications.

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