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 ...

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 ...

The USB 2.0 PHY is a full-featured on-chip physical transceiver. It has Electro Static Discharge (ESD) protection and fully supports all OTG and host functionality. An optional charge pump generates a ...