We think the neatest bit is the power supply that actually shorts itself out to turn on the load. A PIC controls a triac connected across the supply by monitoring power line zero-crossing.

A distinctive aspect of this power supply is its rotatable AC input power cord interface. By removing an external panel, system build gurus can adjust the AC input module’s orientation to better ...

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 ...