Quote:
Originally Posted by team-4480
Hi,
We have a mini-pc that we would like to use for some advanced image processing that can only be done on a full-fledged mini-pc. We wrote the code and tested it and it works great. Now the problem is powering it on the robot. On the AC-DC converter, it states that it outputs 19.5V @4.62 Amps. We found a 19V 5A adapter, but unfortunately, when we plug it in, the mini-pc beeps and gives a red light indicating that the power supply isn't good enough, likely due to the lower voltage.
Has anyone ever done anything like this, or does anyone have an idea on how to properly feed 19.5V to the mini-PC? Also, what are the rules regarding use a DC-DC converter?
Thanks a bunch in advance!
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The rules that would apply to you are R49, customs circuit may not produce more than 24V, and R10, no individual item may exceed $400 in cost.
I'm told R49 is now in place because someone had a 12V to 120VAC inverter on their robot as their solution to a problem like yours. Kudos to you for not trying to electrocute your inspector!
What brand and model of mini PC are we talking about here? I just googled
19.5V car charger and came up with come likely candidates. I know for a fact that many laptops have an extra pin that transmits data about the charger so the laptop can be certain the charger is "safe"*. This may be a similar issue.
On this I'd be concerned about is how your mini PC is going to deal with riding on a robot. The advantage of raspberry pis, kangaroo pcs, etc. is that they're solid state and generally very compact. There's not much inside to get jarred loose and bounce around. Are you sure your miniPC is going to put up with a headon collision with a defender?
EDIT: Here's an
adjustable DC boost converter that should work. Though it suggests you'll need a fan on it to pull 5A. While you're at it, have someone print you a case for it, or it's unlikely to pass inspection.