Power TransformersPower transformers are devices that are used to convert the voltage of an electrical power source. These transformers use the principles of electromagnetic induction to convert the voltage of an AC power source to a different voltage level, which can then be used by electrical devices. Power transformers are commonly used in applications such as power supply circuits, motor drives, and AC-DC converters. These devices are designed to have a high power handling capability and a low loss, so that they can efficiently convert the voltage of the power source.