CM7560R-274

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Common Mode Chokes

Common mode chokes (CM chokes) are an essential component of many power and data transmissions applications, as they serve to filter out unwanted electromagnetic noise. The CM7560R-274 is one of the most popular of these, being used by many leading manufacturers in the field. It is designed for applications such as industrial and automotive power supplies, as well as in computers and telecommunications systems. Below we take a look at the application field and working principle of this versatile CM choke.

Application field of CM7560R-274

The CM7560R-274 is designed for filtering high frequency noise in DC-DC converters and AC-DC adapters, which are typically found in laptop and tablet power-adapter systems. Additionally, it can be used in a variety of automotive applications, including automobile engine control systems and inverter systems. Last, but not least, it is suitable for use in commercial and industrial power outlets, as it does an effective job of mitigating the noise created by electronic equipment.

Working principle of CM7560R-274

The CM7560R-274 is a two-part assembly comprised of a common mode choke and a 100A audio transformer. The common mode choke works by providing a differential-mode impedance, which prevents high frequency noise currents from passing through the external power-cable circuitry, thereby limiting the amount of noise. The audio transformer is then used to shape and filter the signals before it gets transferred to the power-conversion or signal-processing circuit.

The audio transformer also functions as a differential-mode shield, further protecting the system components from the unwanted impact of electromagnetic noise. This reduces electrical interference and ground- loop current, and increases the overall stability of the system.

Conclusion

The CM7560R-274 is an incredibly versatile common mode choke that is suitable for a variety of applications, from consumer electronics to automobiles. It provides excellent protection from high frequency noise noise, and makes use of a two-part assembly consisting of a common mode choke and a 100A audio transformer. By combining the two, it provides both differential-mode impedance and audio-transformer filtering, making it an excellent addition to many power and data transmission systems.

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