Additional Power Supply for USB Devices

Additional Power Supply for USB Devices
Much the use of USB devices today, sometimes cause lack of power problem. How to know the maximum current that can be obtained from a single USB connector is limited to 500 mA. If your device requires more current, then it must involve an additional one USB connector, which maybe not  available. This problem can be solved by an additional instrument to use an external unregulated power and convert it to 5 Volt. (more…)