[ILUG] OT: stepping down from 12v to 9v

[Kenn Humborg]

>   | From: "Kenn Humborg" <kenn at bluetree.ie>
>   | Date: Fri, 28 Apr 2006 12:38:10 +0800
>   | 
>   | On 28 April 2006 08:33, Paul Jakma wrote:
>   | > On Fri, 28 Apr 2006, Brendan Kehoe wrote:
>   | > > Anyone know of a device already available that would take a 12V DC
>   | > > signal (like comes in a car's 12V adapter) and step it easily down
>   | > > to 9V DC?
>   | > 
>   | > A transformer?  [...]
>   | 
>   | Like I always say - beware of routing software developers
>   | giving electronics advice :-)
> 
>  well, you _could_ use a “transformer” in several
>  very indirect ways:  e.g., convert to AC, step-down,
>  then convert back to DC;  
...
>  all rather silly though in this case.

That's what isolating DC/DC converter do internally, so it's
not that silly.  Except that doing it yourself would be very
silly :-)

Later,
Kenn