I used the intellegent dc-dc converter from the mp3car store, set to 12v output, and it powered th carpc and screen fine. (atom 2800 based)
I see you must have done what I did and made an adapter rray. However i Want someway to go directly from the car battery to a 12v 2amp output. Any ideas anyone? I really dont want to burn up another one.
If your handy with a soldering iron you can get a decent heatsink,small amount of pcb a couple of diodes and a 7812ct voltage regulator the 7812 has 3 pins voltage in..ground and vol out.pretty easy and it will cope with 2amp with a decent heat sink....
Can do the same with a 7805 voltage reg for a stable 5v.these can be lined up in a project box so you can have 9-14v in and a stable 12v and 5v out...costs very little and a bit of fun
This is great. I am very handy with a soldering iron. Do you have a schematic?
Maybe 8388.com can chime in and tell us the actual power consumption of the LCD? As the 7812ct is only rated for 1.5 amps.....
The problem with using the 7812 is that if alternator/engine is not running, the battery does not provide enough power to work the 7812 properly, most regulators like this need a 2v overhead above the output so technically you need a constant 14v. I am in the same delema, I want to regulate for led lighting, very low draw but not enough input power. Just my 2 cents SNO
Good point Sno it really didn't think bout that.as mine goes on and off with the ingition....the 5v 7805 for my usb parts is happy.