CMC-01

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Common Mode Chokes

Common Mode Chokes, commonly known as CMCs are inductors that block the flow of common mode current. This type of component is widely used in electronic and industrial applications where it plays an important role in improving electromagnetic compatibility (EMC) and suppressing conducted and radiated emissions from electronic devices.

CMCs are widely used in a variety of applications, ranging from power supplies to control systems. As the name indicates, these devices are used to suppress the common mode current that passes through the same conductor. The common mode current represents the current that travels in the opposite directions in a single conductor. These currents can be caused by differential noise and can cause serious issues with the device performance.

The CMC-01 is a compact Common Mode Choke that is designed to operate efficiently in a wide range of operating conditions. It is available in a variety of models, ranging from 1 to 50 Amps. The CMC-01 is capable of suppressing differential and common mode noise up to 10 MHz. The operating temperature range is -40°C to +125°C.

Application Field of CMC-01

The CMC-01 can be used in many different applications. It is commonly used in the controlling and power management systems where it helps to reduce the conducted and radiated emissions. The device can be used in power supplies, motor controllers, switching power supply outputs, PLCs, and inverters. The CMC-01 also finds application in the medical field and in aerospace applications. In these areas, it helps to improve signal integrity and provides an extra layer of protection from electromagnetic interference.

Working Principle of CMC-01

The CMC-01 is designed to reduce the levels of differential and common mode noise that pass through the same conductor. This is done by the two inductors which are connected in series, such that the differential noise is blocked while the common mode noise is allowed to pass. This is achieved by the differential mode inductance being low, while the common mode inductance is high.

When the common mode voltage is applied, the current flows through the two inductors in opposite directions. The flows induce a voltage across the inductors, and the magnitude of the voltage is directly proportional to the current strength. The combined voltage from the two inductors creates an opposing force to the common mode current. This opposing force reduces the magnitude of the common mode current, thus mitigating the interference caused by the noise.

Advantages of CMC-01

The CMC-01 offers several advantages including:

• High efficiency due to low DCR and high operating temperature
• Improved signal integrity
• Cost-effective solution for noise suppression
• High immunity to temperature fluctuations
• High performance due to low inrush currents
• Small size makes it ideal for tight spaces

The CMC-01 is an ideal solution for applications where noise suppression is required. Its small size and high immunity to temperature fluctuations make it well suited for a variety of applications. Its high efficiency and low inrush current also make it a cost-effective choice.

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