Power Supplies

Most electrical power from a wall outlet comes in alternating current (AC) form.

AC to DC Conversion

Alternating current (AC) must be converted to direct current (DC) by a rectifier.

Uses for DC Current

DC current is commonly used to power small electronics.

Electronic Devices

Many devices, such as computers, stereos, and other smaller electrical appliances have their DC converting rectifier built right into the device.

Batteries

Batteries also supply a DC current, so any device that uses batteries also utilizes a DC power supply.