You can’t get beyond 5 V with just resistors though – you’ll need digital communications over the CC line, using a protocol called USB PD (Power Delivery) – which lets a device and a PSU ...

You can see the white line meandering through the bottom of the PCB that shows the high and low sides. The USB port wasn’t soldered to the PCB except by the four signal/power pins (see the ...

USB-C power supply expects to sense a certain value pulldown on the CC line before it provides 5 V on VBUS, and any higher voltages have to be negotiated digitally. The PSU, be it your laptop’s ...

Now, though, we have USB Type C, with Power Delivery. Theoretically, we can pull 100 W over a USB cable. What if we could tap into that with screw terminals? That’s the idea behind [Jakob]’s ...

Belkin introduces a sleek 11-in-1 Pro GaN Dock with GaN technology for efficient power delivery and a range of ports. Two new ...

USB cables inevitably fail and sometimes one end is reincarnated to power our solderless breadboards. Of course, if the cable broke once, it is waiting to crap out again. Too many have flimsy ...

The yellow line traces the signal from the GPIO to the USB power switch. Because the USB current limit is set in software, there must be a few bits of hardware that do the actual work. Tucked away ...

USB ports have a power rating, with a standard default power output of 0.5 amperes. You might notice slow charging on USB ports due to low power output. Sometimes, our Windows computer might throw ...

Having a way to charge your devices while on the go is essential these days, but not all power banks are equally portable.

very few can use USB for power. Instead , they rely on barrel jacks or antiquated charging cradles. If you’d like to modernize your handheld radio’s power source, take a look at what [jephthai ...