What is a magnetic ring?

  • Ningbo Tengxiao Magnetic Industry Co., Ltd. is a professional supplier of magnetic products and magnetic equipment, specializing in the production of high-quality magnetic components, magnetic badges, magnetic office supplies and other magnetic equipment, as well as custom industrial magnets.

    The magnetic ring is a ring-shaped magnet. Magnetic ring is a commonly used anti-jamming component in electronic circuits, which has a good suppression effect on high frequency noise.

    It is a commonly used anti-interference component in electronic circuits and has a good suppression effect on high frequency noise. It is generally made of ferrite material (Mn-Zn). The magnetic ring has different impedance characteristics at different frequencies. Generally, the impedance is very small at low frequencies. When the signal frequency increases, the impedance of the magnetic ring increases sharply. Everyone knows that the higher the signal frequency, the easier it is to radiate out (to buy a high-quality computer case is also to reduce electromagnetic leakage), and general signal lines are not shielded, then these signal lines become good antennas , Receiving various messy high-frequency signals in the surrounding environment, and these signals are superimposed on the originally transmitted signal, and even change the originally transmitted useful signal. Then, under the action of the magnetic ring, the normally useful signal can pass through well, and the passage of high frequency interference signal can be well suppressed, and the cost is low. So it's not surprising that everyone looks at the integrated magnetic ring with plastic bumps on display signal cables, USB cables, and even high-end keyboards and mice.

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