A boost converter would work.
Try this page:
<http://schmidt-walter.fbe.fh-darmstadt.de/smps_e/aww_smps_e.html>
I would shoot for 150kHz or so.
--
Martin K

Tachyon wrote:
> Is anyone aware of an existing, or can one of you geniuses sketch out, a
> power-supply circuit that meets the following specs?
>
> - Input 10-15v DC  (Assume to be dirty, as source will be car
> alternator, generator, car battery, solar panels, etc.)
> - Output regulated 16v, 5a DC
> - filtered output
> - simple components, nothing exotic
>
> I'd REALLY appreciate if anyone can help with this.
> On a side note, I can see down the road needing to choose other output
> voltages
>
>   

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