CMT908-V2

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Common Mode Chokes (CMC) are widely used in the power supply, motor control, DC-DC converter control, filter circuits, optical transmission lines, local communication networks, and many other fields. The CMT908-V2 is an advanced type of CMC, which is especially suitable for DC/DC converter control, power supply systems, and other fields, due to its high temperature resistance, wide operating temperature range, low EMI radiation, and no-load loss.

The CMT908-V2 employs a self-adaptive winding ratio to enhance the commutation performance, reduce EMI, and increase reliability. It also provides comprehensive protection against surge, over-voltage, over-current and over-temperature in order to ensure safety. Besides, it has an innovative magnetic component design that reduces audible noise emission and EMI radiation, and provides a better user experience.

The CMT908-V2 works on the principle of electromagnetic induction. It utilizes two sets of windings, namely a primary winding and a secondary winding, which act as a transformer. The primary winding carries the input voltage, whereas the secondary winding carries the load current. The two windings are separated by a high-permeability core material, which provides the necessary magnetic coupling between the two windings. A core of the right composition and with optimized geometry is essential for obtaining the desired performance of CMT908-V2.

The working principle of the CMT908-V2 can be explained as follows. When the primary winding is energized, an electromagnetic field is generated between the primary and the secondary windings. This field exerts a force on the secondary winding, which in turn generates a voltage in the secondary winding. This voltage is in-phase with the primary voltage and is inversely proportional to the load current. Thus, the voltage in the secondary winding acts as a voltage source that opposes the primary voltage. This opposition produces a voltage drop across the CMC, which reduces or eliminates common mode current.

In addition, the CMT908-V2 also features an optimized structure for electronic insulation and dielectric strength, giving it superior stability and long-term reliability. The choke is rated for up to 200VAC/VDC and temperatures up to 125°C (±20°C). Its maximum impedance is 1350 Ohms and it has a power rating of up to 50W. The maximum leakage inductance of the CMT908-V2 is 5mH.

In conclusion, the CMT908-V2 is an ideal choice for a variety of applications, such as DC/DC converter control, power supplies, and motor control applications. It offers superior conductivity, high heat resistance, low EMI radiation, no-load loss, and a wide operating temperature range. All of these features make it a reliable and efficient option for a variety of applications.

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