MA1206DIN

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Power Line Filter Modules are specially designed and manufactured to eliminate or reduce electrical interference on power lines. Among different filter modules available, MA1206DIN is an industry-standard, medium-current power line filter module. Its application field and working principle will be discussed in this article.

The MA1206DIN filter module is designed to filter medium-current power lines (DC1-20A). These lines have their own particular characteristics in terms of signal characteristics, so a power line filter needs to be in alignment with these characteristics in order to effectively filter. Specifically, the impulse response of the filter needs to match the range of the signal in the frequency domain, and reduce the signal distortion from the power line to acceptable levels.

A typical application area for the MA1206DIN power line filter module is within industrial DC motor drives. In this situation, the power filter is used to reduce electromagnetic interference (EMI) and related conducted emissions on the power line, that could otherwise interfere with other pieces of equipment and cause operational issues. Furthermore, the size & form-factor of the module, allows it to be deployed in relatively tight spaces, making it ideal for use within industrial motors.

The working principle of the MA1206DIN filter module is based on the well-known inductor-capacitor-resistor (LCR) technique, where inductors, capacitors and resistors are arranged in a particular configuration, allowing it to block the EMI noise waves. More specifically, in the MA1206DIN power line filter module, there is a common mode inductor which filters out the common-mode EMI/RFI noise, and a differential mode inductor which filters out the differential-mode EMI/RFI noise. The filter also includes a board-mounted capacitor, and termination resistor designed to reduce impedance, improve signal integrity and filter out any remnant noise from the line.

In summary, the MA1206DIN power line filter module is a simple, yet efficient device for filtering out EMI/RFI noise on DC power lines. Its small size and efficient design make it ideal for use in industrial DC motor drives, where it can effectively reduce noise to ensure smooth operation. Furthermore, the use of the LCR technique allows the filter to block out EMI/RFI noise, while still maintaining a high level of signal integrity.

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