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    How to reduce the loss of inductance magnetic core edit

    Everyone knows that inductance magnetic core is a product that is used in many electronic products, such as mobile phones , MP3, MP4, computers, converters, transformers and LED TV displays, etc. And everyone should also know that electronic products produce a certain amount of loss during use, and inductor cores are no exception. However, if the loss of the inductor core is too large, it will lead to a reduction in the service life of the inductor core, and in serious cases, it will also affect the normal operation of the product using the inductor core. So how should we reduce the loss of the inductor core?

    The reason for the loss of the inductor core:

    Patch The loss of the inductor core mainly comes from the core loss and the coil loss, and the size of the loss in these two aspects needs to be judged according to its different circuit modes. Among them, the core loss is mainly caused by the alternating magnetic field in the core material. The loss it generates is a function of the operating frequency and the total magnetic flux swing (ΔB), which will greatly reduce the effective conduction loss. Coil loss is the energy loss caused by the change of magnetic energy. It will reduce the strength of the magnetic field when the power inductor current drops.

    Ways to reduce the loss of the inductor core:

    1. The core loss generated in the inductor core will vary with the inductance The increase in core loss and the decrease in allowable copper wire loss will also bring about a surge in the flux of the same inductor core material. Therefore, when the switching frequency rises above 500kHz, the inductor core loss and winding AC loss can greatly reduce the allowable DC current in the inductor.

    2. The loss of the inductor core in the coil is mainly manifested in the copper wire loss, so if you want to reduce the copper wire loss, you must reduce the loss of the inductor core , Continue until all losses are equal. The best case is that the losses remain stable and equal at high frequencies and allow the maximum output current to be obtained from the magnetic structure.