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Re: [Doepfer_a100] Re: Question regarding power distribution in P6 and P9

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  • Valery Carpentier
    This site could come in handy http://www.modularplanner.co.uk/ I don t know how accurate the power calculations are, but it should give you a decent idea of
    Message 1 of 6 , Feb 1, 2012
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      This site could come in handy

      http://www.modularplanner.co.uk/

      I don't know how accurate the power calculations are, but it should give
      you a decent idea of power use nonetheless.

      On Mon, Jan 30, 2012 at 1:32 AM, Raul <raulpena1974@...> wrote:

      > **
      >
      >
      > This is great information. In answer to your questions.
      > My system resides on its own. Both 6U cases on one tabletop rack stand. No
      > other equipment resides underneath or on any of it's sides.
      > Its mainly for home use. So temperature is controlled.
      > It's now helping me get a clearer picture.
      > Many thanks.
      >
      > Raul
      >
      >
      > --- In Doepfer_a100@yahoogroups.com, "sean_process" <sean@...> wrote:
      > >
      > > You have to be a bit careful as the 1200 mA rating is not altogether
      > accurate. It depends how hot your system is - is it on stage under lights,
      > is it in a closed flightcase, is it in a studio rack with valve gear or
      > Mytek converters underneath it?
      > >
      > > Also, it's not a case of the PSU working 100% perfect until the current
      > demand reaches 1200 mA and then failing. It might overheat, blow a fuse or
      > just fail at 1200 mA but it will also exhibit some variable behaviour the
      > closer to the maximum it gets. Whilst you won't necessarily notice any
      > problem with ADSRs or LFOs, you will start to notice this especially on
      > Oscillator pitch as the ear is very sensitive to fluctuations in pitch.
      > >
      > > The accuracy and measurement conditions of current consumption can also
      > differ between manufacturers, so it's not always as easy as adding up the
      > numbers. This might not matter now, but you will eventually end up buying
      > other modules.
      > >
      > > It pays to have more than enough power.
      > >
      > > All the best
      > > Sean
      > >
      > > --- In Doepfer_a100@yahoogroups.com, "Raul" <raulpena1974@> wrote:
      > > >
      > > > Thanks for that. Im putting together all the calculations.
      > > > One thing I noticed though is all the modules i own together add up to
      > 1200 mA, however this is across 12U in two G6 cases. So well within the
      > range.
      > > > I'm finding it hard to imagine how one could run over the rating when
      > using Doepfer modules.
      > > > The highest power requirement for a module in my system is the A188-2
      > at 120mA. But even if someone placed 4 of those in case at 480mA that's
      > well below power requirements. I hope I am calculating everything
      > correctly.
      > > > Perhaps this next question is too open,
      > > > What are some situations where one might exceed the power?
      > > > So I know what to avoid.
      > > > Thanks.
      > > > Raul
      > > >
      > > >
      > > > --- In Doepfer_a100@yahoogroups.com, Jakob Paulussen <jakob.paulussen@>
      > wrote:
      > > > >
      > > > > Hi Raul,
      > > > > The Doepfer A-100 manual has a chart telling you the amount of mA of
      > each
      > > > > module. Just add the mA amounts hooked to one power supply.
      > Regardless if
      > > > > you run 1 our 4 busses with one power unit. It's the amount of mA
      > each of
      > > > > the attached consumes.
      > > > > Best wishes
      > > > > Jakob
      > > > > Am 29.01.2012 13:26 schrieb "Raul" <raulpena1974@>:
      > > > >
      > > > > > **
      > > > > >
      > > > > >
      > > > > > Hello group. I'm a bit baffled or naive by the distribution of
      > power in
      > > > > > the two different cases. I'm thinking of upgrading and just
      > wondered if I
      > > > > > need to be more selective and calculating when adding modules?
      > > > > > Up until now i have had 2 G6 cases, and within them I have had
      > various
      > > > > > arrangement of my 90% Doepfer modules.
      > > > > > I know the upper limit of my power supply PSU2 is 1200ma rating.
      > > > > > Perhaps I am overthinking this but how does the larger case with
      > the third
      > > > > > busboard still support more modules?
      > > > > > I feel if I understand this a little better I may lean in one
      > direction
      > > > > > versus another.
      > > > > > Any tips ,rules of thumb, or advice would be useful to me. Thank
      > you.
      > > > > >
      > > > > > Raul Pena
      > > > > >
      > > > > >
      > > > > >
      > > > >
      > > > >
      > > > > [Non-text portions of this message have been removed]
      > > > >
      > > >
      > >
      >
      >
      >


      [Non-text portions of this message have been removed]
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