ALFT-04-4

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The ALFT-04-4 is a type of Common Mode Choke with wide applications in areas including power line filter, motor drive, and lighting transmission, and is suitable for single-phase power supply with rated voltage of AC 380V and rated frequency of 50 or 60Hz. As a specialized device, the ALFT-04-4 is designed to limit common mode noise from differential signal transmissions lines and EMC applications. Specifically, it works by creating inducted voltage between line to line and line to earth, thus, restricting the flow of high-frequency currents.

In order to fulfill the function of common mode filter, the ALFT-04-4 is equipped with special windings, including the primary winding and secondary winding, and the winding and core. These components are arranged symmetrically to form a magnetic four-layer structure, which is in charge of induct linear common mode interference signals. The primary side of the ALFT-04-4 is also equipped with connecting terminals for simplifying the wiring. Meanwhile, the primary and secondary windings of the ALFT-04-4 are isolated from each other with micro insulation to guarantee the proper insulation between the live-total power source and the linear common mode signal emission directions.

The application of ALFT-04-4 Common Mode Choke includes switching power supplies, motor drives, inverters, EMC, etc. As the basic components of these devices, the ALFT-04-4 plays a significant role in common mode suppressions, and in the reduction of harmonic interference. The ALFT-04-4 also works effectively in the circuitry of electric charge-discharge system, such as UPS and LED drivers, for filtering out noise and reducing power loss. All of these applications contribute to increased safety and efficient operation.

The working principle of the ALFT-04-4 common mode choke is based on the basic laws of electromagnetic induction. During operation, it creates an inducted voltage, which restricts the flow of high-frequency currents. When the interference current acts on the windings of the choke, it produces a self-inducted voltage that counteracts the transmission of the current. This inverse current flow also acts against the primary winding current, thus reducing the common mode signal interference level.

The high-frequency noise generated from power electronics equipment can also be reduced by using the ALFT-04-4 common mode choke. With its superior performance, the ALFT-04-4 can reduce common mode emissions to a very low level, ensuring that the surrounding environment is free from electromagnetic interference. Its interference suppression capability is highly appreciated as the component protects device from damage from high-frequency current bridges.

In conclusion, the ALFT-04-4 is a highly efficient common mode choke with wide applications in various areas. With its advanced construction and electric features, the ALFT-04-4 is expected to keep serving its purpose of harmless current transmission and reducing digital signal noise for a long time.

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