Is this a feasible design for a powered usb cable?
I have a Nook Color that I've installed cm7 onto and I saw that with the Nook Tweaks app usb host mode was possible. So I immediately ordered a micro usb to female usb adapter which recently arrived upon its arrival i tried a few things and they worked fine but as I read on xda (forums where the nook development started) it could only supply 100mA current which is barely enough for a mouse and keyboard. What I was wondering was would a cable (possibly with a diode to stop a short circuit) that had a 5v 500mA power supply attached work to supplement the lack of power? I do know that I could just use a powered hub but I was looking for something that could (theoretically) be battery powered.