Join Date: Jul 2008
Location: Jacksonville, Fl
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My grumble on this: Why do the new laptops run on such odd DC voltages? I've got an antique IBM Thinkpad that is happy as a lark running directly off the 12 volt system.
My newer Compaq wants to see 18.something volts. Oh, well.
I'd simply run an inverter and be done with it. As to the quality of 'universal' power supplies, I wouldn't touch one with a stick. They aren't regulating the various voltages, they're putting a big dropping resistor in series with the output of the bridge to change the voltage out. Naturally, that means that the current is also going to be down. They certainly aren't worth what you have to pay for them.
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