Here's what every different USB port type actually means

C, and USB Type-B ports are used in all sorts of devices nowadays, but they're not all made the same, and some are becoming ...
EDN

USB 5V to 12V DC-DC Step-Up Converter by LT1618

This is a 5V to 12V DC-DC step-up (boost) converter circuitry that is especially ideal for the USB powered applications. First of all a USB port has two current supply modes. Before detecting the ...
Morning Overview on MSN

How much power does a USB port really output? The limits explained

USB ports have quietly turned into the default power outlet for phones, laptops, headphones, and even monitors, but the ...
EDN

USB DC Power Supply from Cigar Lighter Socket

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 ...