Finnish company Enedo Power has turned to GaN transistors to put a 1,200W ac-dc power supply into a 41 x 107 x 206mm (900cm3) volume.

Phihong recently introduced two ac-dc power adapters that the company says are the smallest in their class. For comparison’s sake, here’s an ac-dc power adapter, known as a “folding blade,” that I ...

Meeting the Energy Star Level IV efficiency standard, the DCH3 series wall-mount ac/dc power adapters rely on mini-USB connectors for output delivery. They accept a universal 100 to 254 Vac input and ...

The humble yet ever-present AC/DC wall-power adapter doesn’t get a lot of consideration from consumers. It’s one of those things that’s needed but is viewed as a necessary nuisance. I suspect that ...