On Fri, 15 Aug 2003, Picdude wrote:
> Actually, for the 15V to 24V only circuit, you don't need a transformer --
> just a simple (common) inductor and other passives mostly.  Look at the boost
> configuration circuit.
>
Ahh... Those example applications are much better! I was so put off by all
the flyback examples that I stopped reading the datasheet.


> I have an issue with the transformers as well, so when I did my automotive ATX
> power supply for my MP3 player, I too the 12V nominal (~11V to ~14V in) to
> 12V by boosting to 14.5V, then dropping with a 7812.  Efficiency was still as
> good as their flyback (transformer) design for 12V nominal to 12V out
> directly.
>
Handy to know for when I get round to mine :)

Cheers,

Tim

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