Lilliput Regulator Problem...?

**smonice** · 08-25-2004, 07:32 AM

ok so here is what happened. i wired a +12v line from the battery to inside the car and then up to the lilliput touchscreen screen. here are the voltages i saw:

car off: 12.9 before lilliput inline regulator, 12.4 after (closer to screen)
-light would come on but would not power screen up fully

car on: 13.9 before, 13.4 after
-still not working

so i took out the regulator and ran the wires right from the battery line to the screen and had 13.9 into the screen.

it worked fine now. is there a problem with doing it this way, without that inline reg from lilliput.

any idea what the problem could be with the inline reg???

thanx a ton!!

smonice

**4u2n** · 08-25-2004, 08:30 AM

Originally Posted by smonice

ok so here is what happened. i wired a +12v line from the battery to inside the car and then up to the lilliput touchscreen screen. here are the voltages i saw:

car off: 12.9 before lilliput inline regulator, 12.4 after (closer to screen)
-light would come on but would not power screen up fully

car on: 13.9 before, 13.4 after
-still not working

so i took out the regulator and ran the wires right from the battery line to the screen and had 13.9 into the screen.

it worked fine now. is there a problem with doing it this way, without that inline reg from lilliput.

any idea what the problem could be with the inline reg???

thanx a ton!!

smonice

Maybe it a good idea to make a dc-dc converter

**muldrick** · 08-25-2004, 09:49 AM

Or...if you are using a dc-ac inverter, use the Lilli a/c adapter and run it to the inverter. I did this and ended up with a nice clean display and no noises or visual interferences.

**rando** · 08-25-2004, 10:43 AM

Definitely don't power your Lilliput with your cars battery/alternator voltage. According to other posts here, you shouldn't hit it with more than 12.6-12.7V max. It sounds like your egg is toast. MANY (most?) people here have had problems with the egg. Ditch it and use the regulated +12v rail from your PSU or buy/make a good 12V regulator. There are plans for several of them in the forums.

**Chairboy** · 08-25-2004, 10:48 AM

Safest way, run the Lilliput off the regulated 12v from your carputer. I power mine off my Opus.

**smonice** · 08-25-2004, 11:23 AM

so can i use the 200w Snap-On Miniature 12v DC Power Supply and run the battery power and ground into there and then from there run out the power to my inverter and screen?? will this work? im running a laptop so im not sure if the opus is the best way to go for me (money decision). Let me know and thanx for the help.

smonice

**smonice** · 08-25-2004, 11:30 AM

nevermind that wont work, thats for going the other way. is there somewhere not online to purchase a good regulator? im trying to find the quickest solution resonably priced. thx and let me know.

**atlharry** · 08-25-2004, 11:35 AM

Quickest solution (and lowest price) would be to use Chairboy's recommendation. PSU regulates the 12v pretty darn well. I'm running this way and haven't had any kind of problems.

**smonice** · 08-25-2004, 11:51 AM

altharry:

what kinda PSU, any recommendations or places to purchase??

Thanx

smonice

**atlharry** · 08-25-2004, 01:57 PM

Right now, I'm just using a regular 200 Watt PSU (came with the case) and an inverter. Everything is grounded well and via a distribution block so noise hasn't been much of an issue. I'm using cat5 cable with a single pair dedicated for the positive terminal and another pair dedicated to the ground. I just spliced them into the floppy drive power connector (yellow and black wires). By doing it this way, I got rid of the stupid egg all together. I'll take a picture when I get a chance...

If you have the dough... I would recommend getting an OPUS for your PSU. It'll save you alot of trouble... according to many users here... like having to put your computer in hibernation when you run inside a convenience store to grab a drink.