EK28B0032

Electromagnetic interference (EMI) filter kits are electronic components that protect electronic equipment from undesirable interference. EK28B0032 is a standard EMI filter kit for application in industrial, home and office and medical environments. It is suitable for power line frequencies up to 10 kHz and for high frequency applications up to 1 GHz. This article will discuss the application field and working principle of the EK28B0032.

Application

The EK28B0032 is suitable for a variety of applications, including industrial, home and office and medical environments. It can be used to protect against interference from both in-home sources and external sources, and can be used for both power line and high frequency electromagnetic noise. It meets the requirements of EN55022 Class A and EN55011 Class B, with high attenuation in the power frequency range of 10 kHz to 10 MHz, and also offers good attenuation in the high frequency range of 1 GHz.

Working Principle

The EK28B0032 is designed to offer reliable protection to electronic equipment against both power line and high frequency electromagnetic interference. It uses a combination of active and passive components to provide the required filtering and attenuation. The active components used in the filter include capacitors, inductors, diodes, and a common mode choke. The passive components used include resistors, capacitors, and inductors. The filter kit also includes a ferrite core and varistor.

The filter works by attenuating both common and differential mode interference. Common mode interference consists of fluctuating electric fields that propagate along the power line. The filter kit includes two sets of capacitors and chokes that work together to reduce the common mode interference. The differential mode interference consists of the high frequency signals emitted from such devices as computers, printers, and cellular phones. The filter kit includes inductors and diodes to reduce the differential mode interference.

The varistor helps to protect the connected devices from voltage surges forces by reducing the voltage level. The ferrite core helps to prevent high frequency interference from radiating outwards, which can be harmful to other devices. The active and passive components in the filter are designed to work together to provide the required attenuation for both common and differential mode interference.

Conclusion

The EK28B0032 is a standard EMI filter kit for a variety of applications. It is designed to offer reliable protection to electronic equipment against both power line and high frequency electromagnetic interference. The filter works by attenuating both common and differential mode interference, using a combination of active and passive components. The filter also includes a ferrite core and varistor to help protect the connected devices from voltage surges and radiating interference.