| 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; or do the sort of thing
factories do, use either an AC or DC electric motor
to spin a DC generator producing the desired power.
all rather silly though in this case.
just to throw out another possibility (less silly),
how about another AC->DC supply, but one with the
needed 9VDC out? e.g., use the one you have for
the 12VDC, and the second one for the 9VDC.
but _I_ dunno now that would compare to a DC/DC
convertor &tc w.r.t. power, heat, size, initial
and running costs, and reliability, however ....?
Experienced (20+ yrs) kernel/software Eng: | Brian Foster Montpellier,
• Unix, embedded, &tc; • Linux; • doc; | blf at utvinternet.ie FRANCE
• IDL, automated testing, process, &tc. | Stop E$$o (ExxonMobile)!
Résumé (CV) http://www.blf.utvinternet.ie | http://www.stopesso.com
Maintained by the ILUG website team. The aim of Linux.ie is to
support and help commercial and private users of Linux in Ireland. You can
display ILUG news in your own webpages, read backend
information to find out how. Networking services kindly provided by HEAnet, server kindly donated by
Dell. Linux is a trademark of Linus Torvalds,
used with permission. No penguins were harmed in the production or maintenance
of this highly praised website. Looking for the
Indian Linux Users' Group? Try here. If you've read all this and aren't a lawyer: you should be!