powering some usb devices

**cubanmoses** · 10-07-2003, 06:03 AM

hey guys

i was wondering how can i power the digitalww touchscreen, a usb soundcard and a external dvd drive with one sub port. i also have a pcmcia usb card. that card can't power the touchscreen or the soundcard, but it can power the dvd drive. what do i do about the usb soundcard, since i'm gonna have the touchscreen plugged into the one usb port?

**tejesh83** · 10-07-2003, 07:17 AM

USB Hub

with or without external power.

**nzKAOSnz** · 10-07-2003, 03:09 PM

WITH
had problems running one without

**fluffy2097** · 10-07-2003, 04:03 PM

A powered USB hub should let you power everything just fine. Most of them run off 5volts. Make sure you have clean power for this 5 volts because it goes right out to your devices with little to no conditioning. If it surges, you'll fry everything on the hub and possibly your computer too.

**cubanmoses** · 10-08-2003, 02:38 AM

running it off an inverter would not be a good idea would it?

**s_hartmann_83** · 10-08-2003, 02:45 AM

if you have a good power inverter, it would be better than just running it with a DC stepdown power supply. the power inverter is less likely to surge than straight through the car's electrical system.

**cubanmoses** · 10-08-2003, 03:19 AM

what if i connect everything to a surge protector off my 90 watt inverter?

**fluffy2097** · 10-08-2003, 11:23 AM

If you use an inveter you should be more then fine. It will give you 2 levels of protection. The inveter itself, And then the wall wart that steps the power down to 5V DC. I wouldn't worry at all if you did it that way. The only thing is that using that sort of setup, you might get interference in your stereo system.

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