Power supplies are devices that produce AC or DC power.

DC power supplies accept an input power and output the desired form of DC power.

Electrical power generators transform mechanical energy into electrical energy, typically for backup or emergency power.

DC-DC converters accept DC input and provide regulated and/or isolated DC output in various applications including computer flash memory, telecommunications equipment, and process control systems.

DC motors are most commonly used in variable speed and torque applications.

AC motors include single, multiphase, universal, induction, synchronous, and gear motors.

Single phase uninterruptible power supplies (UPS) sit between an AC outlet (i.