New system design...power issues...

**lookinco** · 08-08-2004, 02:16 AM

My carputer is a Shuttle with P4 2.8ghz, 512mb ram, onboard ATI Raddon 9100, SoundBlaster Audigy 2 ZX, floppy drive, and 80gb 2.5" HDD.
The PSU to the carputer will be a 150watt OPUS hardwired to the vehicle's battery.

Other components include 2 USB hubs with their own power supply and with USB touch screen, USB wireless keyboard and mouse, and a USB external DVD drive connected to them. The screen will be a xenarc 10.4" lcd.

I already have an inverter in my vehicle to supply power to a VCR and PS2. So could I just get power from the inverter for the 2 USB hub ? For the components that attaches to the USB hub, do they get power from the USB hub ?

Also for the xenarc 10.4" lcd, it requires a 12v power. Could I just hardwire it to a 12v switch from my vehicle ?

Bascically if my system is wired this way, will there be any problem ?

Thanks,
Clement

**jaeger** · 08-08-2004, 03:49 AM

niiiiiiiiice

**jaeger** · 08-08-2004, 03:50 AM

but the outside looks weird - what kind of car [scratch that] vehicle is that?

**lookinco** · 08-08-2004, 04:01 AM

It's a Honda Odyssey. It has full molded bodykit from Japan , air bag suspension, and 20" wheels.

more info here:
http://www.hondashowoff.com/profile.php?id=3766

**jaeger** · 08-08-2004, 04:08 AM

kewl...

**lookinco** · 08-08-2004, 04:21 AM

I just realized that I can use the 5v out from OPUS to power my USB hub, and other components that plugs into the USB hub will get power from the hub. Correct ?

**JC-S60** · 08-08-2004, 05:55 AM

Yes, that's correct. The only thing you need to worry about is the capacity of the opus... But I think it will be sufficient (the powered hubs only draw as much current as the devices connected to them).

For the screen, I would recommend some kind of regulator, as the car delivers typically something between 11,9 and 16v (not even talking about cranking)...

Nice 'car'

**lookinco** · 08-08-2004, 06:24 AM

So bascailly everything is powered by a 150watt OPUS. 12v to the Shuttle PC and 5V to hub and components. Then a 12v regulator for the screens.

I really have no idea if I will over load the OPUS. Some say it will work and some say it won't. If in case the OPUS is not enough, what are my options ? Another OPUS ?

After reading the forum, it seems like the ITPS does not work well as a regulator. Another choice would be the Carnetix CNX-P1260. Any other better alternatives or will the carnetix be fine ?