[Ham-Mac] OT: 12v adapter for Macbook

David Kelly dkelly at hiwaay.net
Mon Jun 6 16:13:29 EDT 2011


On Mon, Jun 06, 2011 at 08:53:42PM +0100, Stephen Prior wrote:
> 
> I don't really want to go down the route of a car 230V AC inverter,
> although I have one.  It seems daft to transform to mains voltages
> only to come down again.

Understand the reluctance to use a inverter but its not really all that
bad of an option. Apple's Magsafe charger is a switcher and IIRC its
smart enough to adapt and work on 90 VAC to 250 VAC, and 50 or 60 Hz.

It would probably be happy to run on 100V DC as the first thing it does
to input is rectify w/o transformer. So it should be happy with the
square wave out of a cheap inverter.

-- 
David Kelly N4HHE, dkelly at HiWAAY.net
========================================================================
Whom computers would destroy, they must first drive mad.


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