PL8203

Common Mode Chokes, commonly known as CM Chokes, are devices that are used to suppress the wide range of frequencies in which current can flow, including both common mode and differential mode currents, thus minimising signal interference and noise. The PL8203 is a particular type of CM Choke – its goal is to minimise inductive and capacitive coupling in order to achieve maximum noise suppression.

Application Field:

The PL8203 CM Choke can be used in a wide range of applications where signal interference or noise need to be reduced. Some of the typical uses for this type of device include: audio amplifiers, bearing current detectors, General Purpose Interface Bus (GPIB), phone systems, lab equipment, voice-over-television (VoTV) systems, and wireless/cellular communication systems.

Working Principle:

The working principle of the PL8203 CM Choke is based on the phenomenon of electromagnetic induction. A changing magnetic field in a conductor induces an electromotive force or voltage in the conductor. This voltage can be used to block the flow of common mode and differential currents. The PL8203 CM Choke is constructed using two interlocked windings with two different numbers of turns – these two windings act as an inductor and a capacitor in the same winding. The varying voltage created by the changing magnetic field of the two windings, creates an electromotive force or current that opposes the flow of the common mode and differential currents, thus reducing the noise and signal interference.

Conclusion:

The PL8203 CM Choke is a highly reliable device that can be used to reduce interference and noise in a wide variety of electronic applications. Its working principle is based on the phenomenon of electromagnetic induction, and its two windings act as an inductor and a capacitor, producing an opposing electromotive force to reduce common mode and differential currents.