LCF121002C900TG Filters

Common mode chokes are a type of electrical device commonly used in power factor correction. They are used to reduce the level of harmonic current produced by power factor correction circuits, and to limit the level of current that can flow through the circuit. The LCF121002C900TG is one such product from the LCF series. In this article, we will look at its application field as well as its working principle.

Application field

The LCF121002C900TG is an example of a common mode choke for use in power factor correction. It is designed to improve the characteristics of the power supply, reducing harmonic current levels and improving efficiency. It consists of two windings connected in series, each with two cores, and an iron core. This arrangement helps to eliminate common mode noise in the power supply, resulting in improved power factor performance and efficiency.

The choke is typically used in power supplies, and can be applied in both AC and DC applications. It is suitable for use in a wide variety of different systems, including medical equipment, computers, electronic test and measurement systems, and other applications.

Working Principle

The working principle of a common mode choke is based on the principle of inductance. The choke has two windings, one of which is the primary winding and the other is the secondary winding. The primary winding is connected to the power supply, while the secondary winding is connected to the load. The core of the choke consists of an iron core, which helps to reduce losses due to eddy currents.

When the power supply is switched on, electric current flows through the primary winding of the choke. This current creates an alternating magnetic field, which induces an opposing voltage in the secondary winding. The secondary winding then acts as an inductor, providing resistance to the flow of current. This resistance helps to reduce harmonic current levels in the power supply, and to improve power factor at the same time.

The choke is also effective at suppressing common mode noise in the power supply. As the induced voltage in the secondary winding is in opposition to the current in the primary winding, the two opposing forces help to shield the power supply from electromagnetic interference. This reduces the level of noise in the power supply, and improves the performance of the power supply as a whole.

Conclusion

The LCF121002C900TG is a common mode choke for use in power factor correction. It is designed to improve the power factor of power supplies, reducing harmonic current levels and improving efficiency. Its two windings are connected in series, and an iron core is used to reduce losses due to eddy currents. The choke also helps to suppress common mode noise, reducing the level of interference in the power supply. It is suitable for a wide variety of different applications, including medical equipment, computers, and other electronic test and measurement systems.