Upgrade Your USB Hub


Posted on Feb 5, 2014

Problems can arise with USB hubs that are powered from a PC when gadgets plugged into them draw too much current. This is often the case with devices fitted with USB cables that are too long or too thin, causing voltage drop. There`s no need to scrap your old USB hub, however, if you upgrade it using this little circuit and an external power suppl


 Upgrade Your USB Hub
Click here to download the full size of the above Circuit.

y. Just cut the 5-V power wire of the USB cable inside the hub and solder a diode (D1) in the pass-through direction. Now connect the 5 V wire from the external power supply to the cathode of this diode. D1 prevents any current from the power supply from flowing back into the PC.




Leave Comment

characters left:

New Circuits

.

 


Popular Circuits

AC Lamp Chaser schematic
Crystal-controlled-reflection-oscillator
Low-Cost Window Comparator
Fm Modulator Circuit
50W car audio amplifier schematic circuits
circuit 10a variable power supply symmetric
Safe Oscillator For Watch Crystals
Dynaco ST-70 Amplifier
Power Control
Fundamentals of Electrical Engineering and Simple combination lock
With NE555 making push-button delay section lamp circuit
The contact resistance measuring circuit



Top