SV: Re: [sdiy] RoHS

Seb Francis seb at burnit.co.uk
Fri Jan 13 14:10:49 CET 2006


And look on the bright side, now you'll be able to power your expensive 
studio microphones in your car without having a separate DC-DC converter 
for the phantom power ...

Benjamin Riggs wrote:

> sorry harry,
>  
> the shift to the 48v is definitly cause of increasing power 
> requirements and cable size, don't mean bigger battery though. all the 
> power the battery really has to provide is to start the car, the 
> alternator provides the power for the rest. cars these days have much 
> larger alternators than they did 30 years ago, but batteries seem to 
> be actually getting smaller.
>  
> ben.
>
>     -----Original Message-----
>     *From:* Harry Bissell Jr [mailto:harrybissell at prodigy.net]
>     *Sent:* Thursday, January 12, 2006 11:36 PM
>     *To:* Benjamin Riggs; 'Roy J. Tellason'; synth-diy at dropmix.xs4all.nl
>     *Subject:* RE: SV: Re: [sdiy] RoHS
>
>     Bzzzt
>
>     wrong answer. It will require a BIGGER battery. The increase in the
>     electronic content has driven the POWER requirements up, so that
>     the existing 12V systme can't deliver the power without using 4/0
>     cables.  They need higher voltages, and maybe slightly reduced..
>     current. Its not equal.
>
>     MORE POWER !!!
>
>     H^) harry
>
>     */Benjamin Riggs <ben.r at iinet.net.au>/* wrote:
>
>         Well, it'll require a battery with more cells, but it will
>         have the same
>         power requirement (higher voltage but less current, that's why
>         they are
>         doing it), plate surface area will be approximately the same
>         so I doubt they
>         will require more lead.
>
>         Although 4x number of cells means 4x the chance of a cell
>         failing thus much
>         shorter life.
>
>         -----Original Message-----
>         From: owner-synth-diy at dropmix.xs4all.nl
>         [mailto:owner-synth-diy at dropmix.xs4all.nl] On Behalf Of Roy J.
>         Tellason
>         Sent: Thursday, January 12, 2006 6:12 AM
>         To: synth-diy at dropmix.xs4all.nl
>         Subject: Re: SV: Re: [sdiy] RoHS
>
>         Car batteries. The materials of which are approaching 100%
>         recycled as it
>         is.
>         And they're talking about switching away from 12V to a 42V (?)
>         system?
>         That's going to need a lot more battery for each car...
>
>         -- 
>         Member of the toughest, meanest, deadliest, most unrelenting
>         -- and ablest
>         -- form of life in this section of space, a critter that can
>         be killed but
>         can't be tamed. --Robert A. Heinlein, "The Puppet Masters"
>         -
>         Information is more dangerous than cannon to a society ruled
>         by lies.
>         --James
>         M Dakin
>
>



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