A computer power supply converts AC into multiple DC voltages ... Their name is derived from the type of circuit used to change the voltage. For more details, see transformer.

A power supply for electronic devices. Also called an "AC adapter" or "charger," power adapters plug into a wall outlet and convert AC to a single DC voltage. Computers use multiple DC voltages ...

A well-known property of switching mode power supplies (SMPS) like those used in any modern computer is that they’re more efficient at higher AC input voltages. Power supply efficiency at ...

Cheap computer power supplies tend to come with low-quality components and materials, which themselves can cause unwanted and inconsistent voltage spikes; they may also have poor heat dispersal ...