EMI4172MTTAG

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Common mode chokes, also known as EMI4172MTTAG, are designed to reduce electromagnetic interferences (EMI) in electric motors or drives. They are used to filter noise between the motor and the main power supply. The main purpose of common mode chokes is to suppress the conducted emission of EMI from the motor, thus protecting the motor and other equipment from possible damages due to EMI.

Common mode chokes are composed of windings, cores, and other electrical components. The inductance of the windings and core material determines the electrical performance of the choke. Depending on the design of the choke, the core may be hollow or have a solid core with windings filled with ferrite. The inductance and impedance of the chokes can be adjusted by changing the number of windings, core material, turns per length, winding pitch, and core shape.

The application fields of EMI4172MTTAG include automotive, industrial, and consumer electronics. In automotive applications, these chokes are used in hybrid and electric vehicles to reduce the conducted emission of EMI. They are also used to eliminate DC currents from the alternator or the battery. In consumer electronics, common mode chokes are used to filter noise from devices such as radios or TVs, as well as USB-enabled devices. In industrial applications, they are used to reduce EMI from electrical motors or generators.

The basic working principle of a common mode choke is to create an induction voltage, also known as an induced voltage, in order to counteract the effects of EMI. The induced voltage is created by placing the windings around a copper core, which in turn increases the inductance of the choke. As the flow of DC current increases, the inductance of the choke also increases, thus reducing the amount of EMI. Additionally, the size of the choke and its shape can also affect the efficiency of the choke in suppressing EMI.

The EMI4172MTTAG common mode chokes offer a superior performance in filtering EMI and suppressing conducted emissions. They are designed to withstand a wide range of temperatures and EMI-generating frequencies, and their small size allows them to be easily integrated into any device. In addition, they are low cost and provide excellent EMI filtering performance. Overall, the EMI4172MTTAG common mode chokes are a reliable and cost efficient solution for reducing the conducted emission of EMI from electronic devices.

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