Engineers at Google, tired of running tens of thousands of computers with inefficient power supplies ... a standard wall plug or distribution system for 12 volt DC. It is ridiculous that the ...

Built inside a recycled ATX power supply case, [Kedar]’s project is heavy on off-the-shelf components, like a laptop power supply for juice, a buck converter to charge the 12 volt sealed lead ...

In short, a power inverter changes 12-volt direct current (DC) from your vehicle's cigarette-lighter port to 120-volt alternating current (AC). The devices you plug into wall outlets use AC ...

the need to power a hand-held tool outdoors, or the convenience of a temporary energy supply on a camping weekend, being able to convert your car’s 12-volt DC electricity to a part-time 240-volt ...