Transformers are electromagnetic devices used to transfer electrical energy between two or more circuits through electromagnetic induction. They are used to step up or step down voltage levels in power supplies and electrical systems, ensuring safe and efficient power distribution. Transformers are essential for voltage conversion in both consumer and industrial electronics.

With their ability to isolate circuits and regulate voltage, transformers play a key role in maintaining stable and reliable power flow. For engineers working on power electronics, transformers are crucial components for safe and efficient energy management.