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 ...

At the end of 2025, Ikea quietly introduced its “Västmärke” series of Qi2.0 wireless chargers. There are three different ...

How many watts can a USB port actually output? The answer depends on your cable and protocol. Here is the ultimate guide to ...

Once upon a time, building yourself a power supply required sourcing all manner of components, from transformers to transistors, knobs, and indicators. These days, everything’s a bit more integrated ...

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, ...

The diagram shows the circuit of a versatile USB power socket that safely converts the 12V battery voltage into stable 5V. This circuit makes it possible to power/recharge any USB power-operated ...

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 ...

Just finishing remodeling my home office and I am in search of a surge protector that also would allow me to charge and ipad, iphone and other USB chargers with as many amps or better than the iPad's ...

You can easily find laptops and desktop PCs packing USB-C port certified for Thunderbolt 4 or USB 4. But now the next generation of the standard is picking up speed ...

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 ...

Here’s a useful gadget that will help you keep your devices juiced up while you are out and about: the Portable USB Power Supply. This portable gadget charger has built-in batteries that can be ...