[Guido Socher] built himself a great little bench power supply that ... a generic 24 Volt laptop power brick. An ATmega8 generates a PWM signal that is sent though a low-pass filter, allowing ...

Newer power supplies will jettison support for old-school 3.3-volt and 5-volt rails, and concentrate solely on producing 12-volt power ... out an eventual jump to DIY parts.

PCs originally ran mostly on 5 volts, but over time they’ve shifted mostly to 12-volt power. One PSU maker, for example, pointed to a circa-2006, 600-watt supply ... to the DIY crowd, at least ...

At the Computex trade fair in Taiwan this week, Seasonic showed the prototype of a power supply unit in which the currents on the individual 12-volt lines of the controversial 12V-2x6 connector ...