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 ...

I recently bought a replacement laptop PC from Dell and was happy to see that its AC/DC power adapter had the same ratings as the ones I had from two now-defunct Dell laptops (19.5 V, 2.3 A/45 W).

We live in interesting times, so all EV owners should have at least one adapter at hand. But which one? Let us explain.

Trade two external power supplies for one. When you purchase through links on our site, we may earn an affiliate commission. Here’s how it works. Lugging around an ultra high-end laptop that's ...

Described as high-efficiency components, the 50W AD50 and 100W AD100 series ac/dc power adapters specify typical power-conversion efficiencies of 80% and 90%, respectively. Both support a universal 90 ...

Single-phase power factor correction (PFC) circuits—a kind of front-end AC/DC converters—are ubiquitous in a variety of ...

Factory-configurable for a wide range of commercial, industrial, and medical apps, the BE Series external ac/dc power adapters are billed as an economical line of external switching power supplies.

When you have a whole stack of devices and appliances that all have an AC to DC adapter and which you’d like to put on an uninterruptable power supply (UPS), you could do the obvious thing and get an ...

I have seen those in older rentals, and it was just simply a hook-up to cable television in the same box as the electrical outlet. Probably a space saving thing. Nope...just your normal wall-wart with ...

When you have a whole stack of devices and appliances that all have an AC to DC adapter and which you’d like to put on an uninterruptable power supply (UPS), you could do the obvious thing and get an ...

By eliminating current sensors without sacrificing efficiency, researchers have shown a new way to build smaller, cleaner, ...