What is the cylinder in the charging cable and what does it do? In this article, we look at the answer to this question. Let’s just say that chargers for computers are now available in a wide variety of designs and with a wide variety of functions. Many charging cables have a small cylinder made of plastic called an interference suppression filter.
This filter is designed to ensure that the functionality of other electronic devices is not compromised. Devices such as laptop computers generate electromagnetic waves when they are switched on. These are transmitted to the environment by the charging cable. This can lead to what are called “jacket waves” in other technical devices. Among other things, WLAN can also be corrupted if transmitted on the same wavelength or on the same frequency.
The noise suppression filter absorbs electromagnetic waves
The noise suppression filter has the function of preventing the propagation of electromagnetic waves. It provides cancellation of electromagnetic waves by means of a ferrite core installed inside because ferrite is a non-conductive or electrically non-conductive material. The charging cable passes through the ferrite core so that it absorbs electromagnetic waves and thus fulfills its task.
(After this article, you can also check our article titled How much electricity does a plug-in charger consume)
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