30 Apr
2009
30 Apr
'09
4:55 p.m.
Especially as many vehicles have the inverter built in by the manufacturer.
Tim Tapio wrote:
Ben,
You will find many military power supplies that do the inverse, convert DC to AC back to DC...my 50 KVA UPS units at work convert AC to DC to AC....
If your engine is already running and already producing DC, I think the lack of efficiency is of very little consequence....especially if you're looking at the 90 watts or less that is required to run a fairly powerful laptop.
Many people drive with their lights on during the day, I'd say that is less efficient than charging/running your laptop from an AC inverter.
73 de Tim, K4SHF