An inductor is a common electronic component that plays crucial roles such as filtering and energy storage in circuits. This article briefly introduces the calculation of inductance and relevant formulas.

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In electronic circuits, inductors serve a wide range of purposes, which has led to the existence of numerous types. This article briefly presents the methods for selecting inductors.

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Nanocrystalline magnetic cores are widely used in fields such as switching power supplies, inverters, and EMC filtering. They can effectively suppress spike noise generated by rapid current changes. A spike suppressor is usually made by winding one or a few turns of copper wire around a magnetic core. Its structure and installation are very simple, yet it is highly effective in suppressing spike noise.

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