[sdiy] +/- 15v from a wall wart...

[Dave Magnuson]

Hi Justin,

The DC-to-DC converter is only 1 watt.   Much too small for most 
applications

Sorry!

Dave


----- Original Message ----- 
From: "Justin Owen" <juzowen at googlemail.com>
To: <synth-diy at dropmix.xs4all.nl>
Sent: Friday, July 18, 2008 2:58 PM
Subject: [sdiy] +/- 15v from a wall wart...


> Hey all,
>
> I'm looking for some cheap, simple ways of getting a +/-15 volt supply 
> from a wall wart for a small, portable unit I'm working on.
>
> Has anyone got any advice on the suitability of dual output DC-DC 
> converters like these:
>
> http://www.rapidonline.com/Electrical-Power/Power-Supplies/DC-DC-Converter-ICs/1W-Dual-output-DC-to-DC-converters/72607
>
> Fluctuation from an unregulated DC adapter might be a problem - guess I 
> could back them up with 78XX Vregs?
>
> I know there's a few good schematics out there for supplies running off an 
> AC adapter - but so far I've not had much luck tracking down a cheap 
> 15-18v AC wall wart in the UK - any clues?
>
> Basically I really want to move up to some designs that require a bipolar 
> supply - but I also need the units to be portable and useable with easily 
> accessible power supplies/adapters. Not necessarily after a 'perfect' 
> solution just yet - a reasonably workable one would suffice for the time 
> being.
>
> Thanks much.
>
> J
>
>
>
>
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