The working principle of a transformer

The working principle of A Transformer is based on the phenomenon of electromagnetic induction. It transfers energy through magnetic coupling between the primary coil and the secondary coil, changing the voltage. The basic structure of a transformer includes a core and windings. The core is used to concentrate the magnetic flux. According to Faraday's law of electromagnetic induction, the voltage of the primary coil is proportional to the number of turns, and the increase or decrease of the voltage depends on the ratio of the number of turns between the primary coil and the secondary coil. An ideal transformer has no energy loss, and the input power is equal to the output power.