Wednesday, April 4, 2007

USB Charger Schematic diagram

for more detail visit

If you a bit confuse about how to pin out the USB connector, where is pin 1 and not 4, here is the picture :

4 pin USB A / USB B / mini-USB jack connector at the controller, aka your Computer USB port.

4 pin USB A or USB B plug connector at the peripherals, USB Device, aka your Mouse, your keyboard, your USB Flash Memory.

USB pin assignment as follows :

Pin 1 -- VCC (5 VDC)
Pin 2 -- D- (Data -) typical cable color is White
Pin 3 -- D+ (Data +) typical cable color is Green
Pin 4 -- GND (Ground)

and if you guys want to order PCB online, try this site,


1 comment:

Stephenie said...

Well written article.

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