[sdiy] Oscillator stability using SLA batteries.

[harrybissell]

Hi Julian...

Larger batteries will discharge slower.  You should modify all your modules to
eliminate
any places where  the supply voltage is directly used as a reference... like
the expo
converters, oscillator core, etc.  Things like VCA and prlly VCF you could run
unregulated.

Design for battery power is an art in itself... its really hard to just 'brute
force' the conversion...
like your plan might be (at 1.3A)...

if you have schematics I'd be happy to advise the points where you might
stabilize the VCOs...

H^) harry

Julian wrote:

> Hi there,
>
> Ive been working on mounting my modular in an skb mixer case for
> portability.
>
> Ive done very brief trials running it off a couple of (borrowed) 12v sealed
> lead acid batteries.
>
> My question is, will higher amp hour batteries (with in reason) give me a
> more stable power feed, and lead to better stability of the components?
>
> As i say, i only got a brief go with the batteries i borrowed, so the
> oscillators probably wouldn't have had a chance to stabilise anyway.  They
> were 2.4 AH.  Im thinking of going up to 7.2 or 10 etc. when i buy my own
> batteries...
>
> Am i likely to see improvement (other then that they'll last longer)
>
> Power drain is probably about 1300 milliamps.
>
> Thankyou, Julian