Classification of inductance
Date:
2022-10-13 11:17
Self inductance device
When an electric current passes through the coil, a magnetic field is generated around the coil. When the current in the coil changes, the magnetic field around it also produces a corresponding change, and the changing magnetic field can make the coil itself produce an induced electromotive force (induced electromotive force) (electromotive force is used to represent the terminal voltage of the ideal power source of the active element), which is self-induction.
An electronic component with a certain number of turns and a certain amount of self-inductance or mutual inductance, often called an inductance coil. In order to increase the inductance value, improve the quality factor and reduce the volume, the iron core or magnetic core made of ferromagnetic material is often added. The basic parameters of inductor include inductance, quality factor, intrinsic capacitance, stability, current through and frequency of use. An inductor composed of a single coil is called a self-inductor, and its self-inductance is also called a self-inductance coefficient.
transformer
When two inductor coils are close to each other, the change of magnetic field of one inductor coil will affect the other inductor coil, and this effect is mutual inductance. The mutual inductance depends on the self-inductance of the inductor coil and the coupling degree of the two inductors. The components made of this principle are called transformers.
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