NAP-10-221-DXU

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With the rapid development of industrial, energy and communications technologies, power line filter modules are used increasingly in a wide range of applications and industries, ranging from medical, automotive, aerospace and defense industries, to consumer electronics and general power supplies. The NAP-10-221-DXU, developed by China North-South Power Technologies Ltd., is a compact, cost effective power line filter module based on their proprietary D5G-NT-231-DI filter circuit. This article will discuss the application field and working principle of the NAP-10-221-DXU.

Application Field

The NAP-10-221-DXU is designed for use in applications where there is a need to protect sensitive electronic equipment from harmful electromagnetic interference (EMI) originating from the power source. It is suitable for reducing conducted common-mode (CM) and differential-mode (DM) EMI in AC power line frequencies up to 300kHz. It can handle line currents up to 22A, providing a minimum common-mode attenuation of 40dB from 10kHz to 300kHz and a minimum differential-mode attenuation of 50dB from 10kHz to 300kHz, while keeping power losses to a minimum. This makes it an ideal choice for applications requiring low noise power lines such as medical and automotive applications.

The NAP-10-221-DXU can also be used in applications requiring high-power filtration, as it is capable of filtering line currents up to 50A and providing a minimum common-mode attenuation of 60dB from 10kHz to 300kHz, and a minimum differential-mode attenuation of 70dB from 10kHz to 300kHz. Additionally, the filter module comes with built-in mounting brackets for easy installation and positioning in applications. This makes it a good choice for applications such as industrial, communications, military, and aerospace applications.

Working Principle

The NAP-10-221-DXU utilizes the basic principles of electromagnetic interference (EMI) reduction in order to achieve its stated specifications. The filter module contains two main stages of EMI filtering. The first stage is a common-mode filter with a series inductor connected to the line side of the filter and a capacitor connected to the equipment side of the filter. This is used to reduce common-mode noise on the power line. The second stage is a differential-mode filter with a series inductor and a shunt capacitor connected to the line and equipment respectively. This is used to reduce differential-mode noise on the power line.

The NAP-10-221-DXU filter is designed using a sophisticated mathematical algorithm to ensure the minimum attenuation of both common and differential-mode noise on the power line. The built-in mounting brackets also help ensure a secure connection and a reliable connection between the filter and the power line. This ensures that the filter is able to provide the rated common-mode and differential-mode attenuation up to the filter’s specified current rating.

Conclusion

The NAP-10-221-DXU power line filter module is designed to provide high-performance filtration of high-frequency EMI from AC power lines. It is suitable for use in a wide range of applications such as medical, automotive, aerospace and defense industries, consumer electronics and general power supplies. The filter module utilizes the basic principles of electromagnetic interference reduction to provide the specified performance. The built-in mounting brackets also help ensure secure and reliable installations in any application. As such, the NAP-10-221-DXU is an ideal choice for power line filter modules.

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