USB power supplies are super cheap and omnipresent. They are the Tribble of my household. But they’re not all created equal, and some of them may even be dangerous. I had to source USB power supplies ...

This report describes a 20 W USB PD power supply using Cypress CCG2 and InnoSwitch-CP devices. It is InnoSwitch-CP industry’s first AC/DC IC with isolated, safety rated integrated feedback. With an ...

When the USB standard was first revealed, a few peripherals here and there adopted it but it was far from the “universal” standard implied by its name. It was slow, had limited ability to power ...

Update 12/05/18: Apple now sells an 18W USB-C power adapter for $26Remove non-product link. To use it with your iPhone, you still need to purchase a USB-C to Lightning cable. We haven’t tested it yet, ...

This article is an engineering report describing a 5 V / 3.0 A or 9 V / 3 A output USB Type-C with support of USB PD 3.0 and PPS protocol using the InnoSwitch3-CP INN3266C-H210 IC and Weltrend WT6615F ...

So I've tended to assume, possibly stupidly, that if a device relies on a USB power connection at all then any old AC->USB power adapter is fine to use for it and substitutable for a computer USB port ...

AC adapter with USB port; can be used to charge 4G and newer iPods. Sonnet’s iPod USB Power Adapter is nearly identical in appearance to i-rocks’ $9 AC/USB Power Adapter: A tiny (roughly 2″ by 1.5″ by ...

Apple's iPod touch has a 30-pin docking port that matches the port on the iPod nano, iPod classic, iPhone and iPad. A cable from any of these devices or any other cable that has the 30-pin Apple ...

With the range of gadgets I carry around, I have a hard time making sure they are always juiced up. Here is a useful gadget designed to keep your gear charged on the go, the Portable USB Power Supply.