USB has 220uF (w/ ESR) on the host mother board, and the question is when I hot plug a device what is happening to the USB 5V power (over simplified but shows the idea).
Now that I have this simulating I can see the current pulse peak and that it is much bigger with 10uF. Also a soft start idea.
Top is a soft start circuit.
Some Info from:
http://www.usb.org/developers/docs/whitepapers/power_delivery_motherboards.pdf
link back to Arduino forum:
http://forum.arduino.cc/index.php?topic=301436.0
