Transformers are electrical devices used to transfer electrical energy from one circuit to another, usually by means of electromagnetic induction. They consist of two coils of wire wound around a magnetic core, with the primary coil connected to a voltage source and the secondary coil connected to a load.

When an alternating current (AC) voltage is applied to the primary coil, it creates a magnetic field that induces a voltage in the secondary coil. The voltage induced in the secondary coil is proportional to the turns ratio of the transformer, which is determined by the ratio of the number of turns in the primary and secondary coils. By adjusting the turns ratio of the transformer, the voltage and current levels in the secondary circuit can be adjusted relative to the primary circuit.

Transformers are used in a wide range of applications, including power distribution, voltage regulation, and signal isolation. Some common types of transformers include:

Power transformers: These are used to transfer electrical power from one circuit to another, typically at high voltage levels. They are commonly used in electrical power distribution systems and are essential components in power transmission lines.

Audio transformers: These are used to transfer audio signals from one circuit to another, typically to match the impedance of an audio source with the input impedance of an audio amplifier.

Isolation transformers: These are used to isolate a circuit from the main power supply, providing a layer of protection against electrical shocks and reducing noise and interference.

Autotransformers: These are similar to traditional transformers but have a single winding that serves as both the primary and secondary coil. Autotransformers are typically used to provide voltage regulation and power conditioning in electrical systems.

Transformers are crucial components in many electrical systems, and allow for the efficient and reliable transfer of electrical power and signals. Their design and operation require knowledge of electromagnetic theory and materials science.


Category top products 20