ELF-18D215

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Common mode chokes use an inductor-like component called a choke coil to suppress high frequency noises. A common mode coil is a coil wound around a core material such that one end of the coil sees a noise signal on its windings and the other end sees the same noise signal, but inverted. The common mode coil successfully blocks the noise signals, as the noise currents flowing both in and out of the device cancel each other out. The blocking effect of the common mode choke is highly dependent on its coils’ configuration and harmonic content of the signal.

ELF-18D215 is a specialized common mode choke specifically designed for AC servo motor applications. The ELF-18D215 features a low DCR of 0.2 mΩ, which helps prevent power and heat loss. The device is designed to provide a low impedance path for common mode noise currents while blocking high-frequency differential mode current signals.

The ELF-18D215 consists of two cores with distinct coils wound on them. The primary coil is composed of Ferrite, which has excellent characteristics such as low core loss, high permeability, high saturation, and a wide operating frequency range. The secondary coil is wound in a single direction with low resistance winding material. Both coils are wound so that when two identical signals are applied to the primary and secondary coil, the common mode noise is effectively canceled out and the differential mode noise is blocked.

In AC servo motor applications, the ELF-18D215 is used to suppress the high frequency noise generated by the motor and any other associated components. The device works by reducing the common mode current levels which can cause interference and crosstalk. By minimizing current flow in the common mode, the ELF-18D215 helps to reduce the effects of unwanted noise from within the system.

The ELF-18D215 also has applications in many other fields, including automotive, medical, consumer electronics, telecom and many more. In any electromagnetic environment, the ELF-18D215 is used to reduce the effects of electromagnetic interference (EMI) which can cause interference between communications systems. In addition, the device offers excellent temperature performance, allowing it to be used in extreme operating conditions.

Overall, the ELF-18D215 is an ideal solution for reducing the effects of electrical noise in AC servo motor applications as well as in many other fields. Its low DCR helps to ensure minimal power and heat loss, and its coil configurations are designed to provide a low impedance path for common mode noise currents, while blocking high-frequency differential mode current signals.

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