Basic Principles Of Transformers

A transformer is a device that uses the principle of electromagnetic induction to change the AC voltage. Its main components are the primary coil, secondary coil, and iron core (magnetic core). In electrical equipment and wireless circuits, it is commonly used for voltage regulation, impedance matching, safety isolation, etc. In a generator, whether the coil motion is through a magnetic field or the magnetic field motion is through a fixed coil, an electric potential can be induced in the coil. In both cases, the value of the magnetic flux remains unchanged, but the number of magnetic fluxes intersecting the coil varies, which is the principle of mutual inductance. A transformer is a device that utilizes electromagnetic mutual inductance to transform voltage, current, and impedance.