[sdiy] +-12V from two +12V

Josh jlewis184 at gmail.com
Tue Jul 17 16:58:32 CEST 2012


I just got one of these,
https://www.tmatlantic.com/e-store/index.php?SECTION_ID=270&ELEMENT_ID=6183
.  It's Russian hardware and a great deal.  I picked up a scope from
them last year and it's been a great investment.

Good luck,
Josh

On Tue, Jul 17, 2012 at 10:34 AM, Andrew Simper <andy at cytomic.com> wrote:
>
> Hi Marin,
>
> Thanks for the info! They do look identical. I'll try and find a dual
> variable voltage and current unit so I can get +-15. and get ungraded
> current limiting. I'm make sure to double check how much current it's
> generating with a DMM before breadboarding anything.
>
> All the best,
>
> Andy
> --
> cytomic - sound music software
>
>
> On 17 July 2012 20:29, Martin Klang <mars at pingdynasty.com> wrote:
> >
> > oh and you should know that constant current doesn't really work, not as described by the distributors.
> > As it says in the user manual:
> > "Overload and Short Circuit Protection: Prevent the unit from overload and short circuit.
> > When the unit is under the condition of overload or short circuit, the output current will
> > be limited."
> > The current dial simply sets the overload limit, on an ungraded scale.
> >
> > best,
> >
> > /m
> >
> >
> > On 17 Jul 2012, at 12:59, Andrew Simper wrote:
> >
> >> Before I blow anything up can I please ask someone to help out and
> >> double check something?
> >>
> >> I want to buy this power supply:
> >> http://www.manson.com.hk/en/dcpowersupplies_detail.php?m=3&id=5
> >>
> >> Dial in 0.5 A and +12 V for the variable output and it already has a
> >> fixed output of the same ratings. I want to generate +12 V and -12 V,
> >> is it just a matter of connecting the +12 V of the second supply to
> >> the 0V of the first supply so that pushed the second one's 0V is
> >> pushed to -12? Also is +- 12 V enough to run most audio circuits even
> >> if they are +-15 V on the schematic?
> >>
> >> Thanks,
> >>
> >> Andy
> >> --
> >> cytomic - sound music software
> >> _______________________________________________
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> >
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