[sdiy] That old modular power supply question (again)

[Tim Daugard]

----- Original Message ----- 
From: <Matthias.Herrmann at jeppesen.com>
To: <synth-diy at dropmix.xs4all.nl>
Sent: Tuesday, December 15, 2009 7:47 AM
Subject: Re: [sdiy] That old modular power supply question (again)


> what about option 3: running all modules from 15V? or are there any
> modules that can't handle that? just a guess...
>

Or option four, run all modules from 12V? I wanted to run from 15V but by 
the time I added a bunch of modules, current draw required that the modules 
settled for approximately 15V unregulated or 12V regulated.

I didn't see enough advantage with 15V to go through the effort of building 
a 15V supply. Plus, 12V keeps CMOS logic chips far enough from the supply 
limits to reduce the chance of damage from spikes. 12V also reduces total 
current draw by 20%?? Some number anyway after all P = V*A.

Tim Daugard
AG4GZ 30.4078N 86.6227W Alt: 12 feet above MSL
http://members.cox.net/synthfred/h_toctop.htm (Fred's online edition)