Boosting power on an ADB port?

["A.J." <naijireja@yahoo.com>]

Hi all,

I think I know what my problem is with the mouse causing my ROM 03 IIGS
system to become sluggish and unresponsive.  (I use the GeeThree PS/2
to ADB mouse adapter, and an M$ optical mouse).  The problem only
manifests when I first use the mouse.  This is when the mouse LED
powers on, and the LED stays powered on until the mouse is disconnected
or the IIGS is powered down.

I think that the mouse is drawing too much power from the ADB port!
This gives me yet another project idea! :)  I want to build an ADB
power booster using a battery, and I want to make sure that I am doing
the correct thing electrically.

I noticed that pins 3 and 4 on an ADB port are +5VDC and GND,
respectively.  I could take a 9V battery and connect a 5V voltage
regulator in order to set the correct voltage, and wire the resulting
+5V power in parallel with the power supplied by the ADB (i.e. connect
+5V to pin 3, and GND to pin 4 while passing through all 4 of the ADB
pins).  Here is a diagram of what I have in mind:

ADB                ADB                  ADB
>From IIGS          Power Booster        To IIGS

                   Supply
                    +5V
                      |
Pin 3 ----------------+------------------- Pin 3
Pin 1 ------------------------------------ Pin 1
Pin 2 ------------------------------------ Pin 2
Pin 4 ----------------+------------------- Pin 4
                      |
                   Supply
                    GND



Will this work, or is there something that I'm forgetting?

Thanks,
--A.J.