[sdiy] Dual power supply solution?

[Jonathan Lutz]

Ideally would not like to compromise functionality too much. Most of the 
modules I'm building are EFM which are +-12v. Your solution seems to be one 
of the more elegant ones but I'm still undecided how I want to go about 
this. Hrm..

JON

On 6/13/05, Peter Grenader <peter at buzzclick-music.com> wrote:
> 
> 
> 
> >> I think it's easy enough to make a 15 volt supply, and then put 12v
> >> regulators on the modules which need them. Many circuits which I have
> >> built which were designed for +/-12v work fine with 15.
> 
> sorry - sent to soon (wasn't done blabbing!).
> 
> Most *will* work with a lower supply, the question is how well and how 
> much
> spec hack you're willing to tolerate. Critical adjustments such as 1v/oct
> tracking, overall frequency ranges, etc will be compromised.
> 
> As far as slapping a 12 volt regulators on every module you wish to step
> down - you can do this, but add this up ten times and you're burning a lot
> of juice unnecessarily. If I were going to do this, I'd add a regulator
> board at the power distribution stage and a separate 12 volt buss. You may
> need more than one of these 12 power adapters, but this is an improvement
> over a regulator for each module!
> 
> -P
> 
>
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