Re: PC suggestions
Ah, ok. Yes, I think that will work, as long as it's offline from the car. I'm not sure of the details, but it will likely be at a higher voltage when charging. Also there's the risk if the battery goes open circuit for some reason, you'll have a direct connect to the car's charging system, which is probably too high.toggle quoted messageShow quoted text
Not as efficient, but couldn't you just use one of the 12v to 120v inverters that are now really small and cheap? Then just use the regular laptop charging adapter.
All that said, once upon a time I built a regulator that made use of the fact that the car's charging voltage was higher than 12v. Simple series-pass; this was before the LM-78xx, but same idea. It wouldn't work without the car running, but kept the kids happy running an old HP 800 laptop on long trips :)
bobmorgan@... [aprsisce] wrote: