This kind of dc power supplies uses a PCB so you can use two case types for IC1, TO-220 or TO-3. The regulation of this 12 volt power supply is made with TR1 ( multiturn ). IC1 must be placed on ...

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 it made that had 25 percent of ...

By building his power supply in a tin, [Helge] keeps to his ... a pair of MOSFETs to drive a transformer. This steps up the 12-volt input to 280 volts AC, which is then rectified, filtered ...

The device could even save you money. Tech company develops incredible portable power supply with impressive performance: 'A ...

Not wanting to spend the money on a dedicated power supply ... The ATX supply [C] used could supply 25 amps on the 12 volt rail, more than enough for a simple RepRap. There was only one problem ...

Two hobbyists have made Apple's smallest desktop Mac (more) portable. But how practical is it in everyday life?